annotate NEWS @ 818:355bd9c476d9

bwperim: rewrite to support N-dimensional images and connectivity. * bwperim.m: rewrite the function in order to accept images with any number of dimensions. Treat the connectivity argument as more standard (relying on the new private make_conn function). Display image instead of returning its value if nargout less than 1. Add tests. * private/make_conn.m: new private function to be shared among functions accepting a connectivity argument. * NEWS: add bwperim to functions that have been changed.
author Carnë Draug <carandraug@octave.org>
date Tue, 29 Oct 2013 02:32:44 +0000
parents 7779d96939c2
children c97cf027877d
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8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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1 Summary of important user-visible changes for image 2.2.0 (yyyy/mm/dd):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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2 -------------------------------------------------------------------------
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3
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63acfe78a7ed Complete rewrite of imerode and imdilate for all image and SE types.
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4 ** The imerode and imdilate have been completely rewritten for increased
63acfe78a7ed Complete rewrite of imerode and imdilate for all image and SE types.
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5 performance and many Matlab compatibility fixes. Performance gains between
63acfe78a7ed Complete rewrite of imerode and imdilate for all image and SE types.
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6 1.5-30X have been demonstrated. Main compatibility changes include the
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7 addition of the shape option, support for the strel class, and allowing
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8 structuring elements and images of different classes. Non-flat grayscale
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9 erosion and dilation has also been implemented by making use of the new
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10 strel class.
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11
63acfe78a7ed Complete rewrite of imerode and imdilate for all image and SE types.
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12 ** With the increased performance in imerode and imdilate, all other
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13 functions that use them, such imopen and imclose, get an equivalent
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14 performance boost.
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15
802
bec6e07f4272 bwmorph: support of N dimensional images and performance increase.
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16 ** Most of bwmorph operations now support N dimensional images and have
bec6e07f4272 bwmorph: support of N dimensional images and performance increase.
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17 increased performance. Other Matlab compatibility fixes have been
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18 made such as displaying image when there's no output variable.
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19
771
b2e168a18d4b Large rewrite of __spatial_filtering__ function for increased performance.
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20 ** The __spatial_filtering__ function has been mostly rewritten and
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21 performs in approximattely 1/5 to 2/5 of the previous time, depending
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22 on the filter. With this change, all functions dependent on it,
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23 rangefilt, entropyfilt, ordfilt2/n, medfilt2/n, and stdfilt, will also
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24 perform faster.
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25
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26 ** The following functions are new:
205e5f657033 New function: checkerboard
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27
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28 checkerboard
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29 cp2tform
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30 findbounds
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31 impixel
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32 imtransform
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33 intlut
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34 maketform
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35 montage
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36 strel
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37 tformfwd
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38 tforminv
756
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39 ycbcr2rgb
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40
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41 ** The following functions have been moved from the Octave Forge Image package
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42 to GNU Octave core:
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43
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44 cmpermute
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45 cmunique
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46 iscolormap
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47 rgbplot
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48
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49 ** The following functions have been deprecated in the previous release
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50 of the Image package and have now been removed:
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51
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52 blkproc bmpwrite dilate erode
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53
720
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54 ** The following functions have been deprecated (see their help text
32a26b93cc79 imrotate: move imrotate_Fourier into imrotate
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55 for the recommended alternatives):
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56
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d26a8681dd22 Deprecate bwborder in favour of bwmorph with the "remove" option.
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57 bwborder
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58 impad
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59 imrotate_Fourier
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60 uintlut
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61
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62 ** The function im2col has been completely rewritten for massive performace
ad3e5b849ade im2col: rewrite of "sliding" option for performance increase.
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63 increase (increases greater than 500X have been observed, with biggest
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64 differences for smaller blocks and sliding option), and support of
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65 N-dimensional blocks and images.
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66
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67 ** rgb2ycbcr was completely rewritten to accept images of other classes, and
87149a91653d rgb2ycbcr: complete rewrite
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68 colormaps. A new argument was implemented to convert the RGB values
87149a91653d rgb2ycbcr: complete rewrite
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69 according to different standards.
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70
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71 ** The use of non logical matrices to specify the neighborhood for the medfilt2
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72 function has been deprecated. If using a vector to specify the size of the
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73 neighborhood, the elements are no longer swapped.
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74
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75 ** For consistency with other functions that allow specification of padding
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76 values, the function padarray now accepts the string "zeros" as a valid
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77 option.
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78
673
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79 ** The plot produced by `imhist' is correctly scaled on the X axis so that the
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80 colorbar corresponds to the actual intensity of the stems; the given
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81 colormarp is used on the colorbar for indexed images; and the stems no
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82 longer display the markers at their top. The Y axis is also adjusted in case
341c8d3ee3c5 imhist: adjust y axis for outliers
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83 of peaks with high values that prevent a good overview of the histogram.
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84
684
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85 ** The function `rgbplot' accepts a style option which alows for a composite
4637e275a28d rgbplot: add new style option to also display composite colormap
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86 display of a colormap.
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87
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88 ** The option to create poisson noise to an image has been added to `imnoise'.
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89
695
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90 ** With the addition of the strel class, the following functions are now able
8c3ca958d9f5 imerode: deal with strel objects
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91 to handle strel objects:
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92
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93 imdilate
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94 imerode
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95
718
df56c5bc8c64 imresize: nice performance improvement
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96 ** The performance of `imresize()' has been greatly improved when using the
df56c5bc8c64 imresize: nice performance improvement
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97 nearest neighbor method for N or 1/N scale factors (e.g.: 2, 50, 1/4, 1/7).
df56c5bc8c64 imresize: nice performance improvement
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98
722
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99 ** The imperspectivewarp, imremap, imresize, and imrotate functions will now
65c4a7728392 imperspectivewarp, imrotate, imresize, imremap changes.
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100 accept any interpolation method from the interp2 function thus extending
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101 the available methods to "spline" and "pchip". This in addition to the
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102 "bilinear" and "bicubic" methods (same as "linear" and "cubic" respectively)
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103 which are kept for matlab compatibility. For the same reason, the
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104 "triangle" method (interpolation kernel) has also been added (which is the
65c4a7728392 imperspectivewarp, imrotate, imresize, imremap changes.
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105 same as "linear" method).
718
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106
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107 ** Bug fixes on the concavity, intermodes, maxlikelihood, and minimum methods
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108 of graythresh.
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109
745
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110 ** The `bwdist' function will now consider any non zero value as object pixels,
27d87f06dd99 bwdist: matlab compatibility fixes
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111 the class of the distance matrix has changed to single, and indexes an
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112 uint dependent on the matrix size.
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113
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114 ** The transform option of imtophat has been removed (it was deprecated
088376c53e6c imtophat: remove deprecated transform option (use imbothat).
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115 in version 2.0.0) in favour of using imbothat.
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116
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117 ** Other functions that have been changed for smaller bugfixes, increased
9e53c082b5eb padarray: manage padsize larger than input matrix with symmetric and reflect.
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118 Matlab compatibility, or performance:
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119
806
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120 bwlabel
818
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121 bwperim
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122 padarray
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123
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124 Summary of important user-visible changes for image 2.0.0 (2012/11/08):
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125 -------------------------------------------------------------------------
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126
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127 ** The following functions are new:
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128
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129 analyze75info imabsdiff iptcheckconn
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130 analyze75read imadd iptcheckmap
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131 analyze75write imbothat iptchecknargin
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132 blockproc imcrop iptcheckstrs
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133 bwlabeln imdivide iptnum2ordinal
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134 getrangefromclass imlincomb iscolormap
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135 im2int16 immultiply normxcorr2
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136 im2single imsubtract wavelength2rgb
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137
1a7e9a91a6a0 image: added NEWS file
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138 ** The following functions have been deprecated in previous releases
1a7e9a91a6a0 image: added NEWS file
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139 of the image package and have now been removed:
1a7e9a91a6a0 image: added NEWS file
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140
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141 imginfo
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142
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143 ** The function `deriche' has been removed.
c095f8c31237 deriche: removing function due to non-standard license
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144
642
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145 ** The complete set of functions to work with Analyze 7.5 files has been
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146 implemented. See `analyze75info', `analyze75read' and `analyze75write'.
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147
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148 ** `graythresh' can optionally accept an histogram rather than an image. This
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149 allows for preprocessing of the histogram previous to an automatic threshold
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150 selection.
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151
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152 ** Otsu's method for automatic threshold selection (default for `graythresh')
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153 has been completely rewritten and should perform faster. Now, it can also
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154 return a second value representing the ``goodness'' of the computed
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carandraug
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155 threshold value (within class variance).
570
f128e24f3b22 graythresh: return goodness of computed value. Prepare code for multiple algorithms. Avoid var names that shadow core functions.
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156
623
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157 ** Alternative algorithms for automatic threshold have been implemented in
a923e5324064 graythresh: add moments algorithm
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158 `graythresh' (thanks to Antti Niemistö for releasing HistThresh toolbox
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159 http://www.cs.tut.fi/~ant/histthresh/ from where many were ported, under a
632
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160 GPL license). Currently, the following algorithms have been implemented
623
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161 (see graythresh for notes and references):
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162
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163 concavity MaxEntropy minimum Otsu
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164 intermeans MaxLikelihood MinError percentile
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165 intermodes mean moments
623
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166
504
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167 ** The following functions have been deprecated (see their help text
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168 for the recommended alternatives):
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169
658
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170 blkproc bmpwrite dilate erode
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171
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172 ** With the new function `imbothat' the transform option of
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173 `imtophat' has been deprecated.
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174
506
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175 ** The following functions have had been changed for bug fixes and/or
504
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176 improved matlab compatibility
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177
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178 bwarea imhist im2uint8 isind
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179 bweuler imnoise im2uint16 mat2gray
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180 bwfill conndef isbw rgb2gray
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181 cmpermute im2bw isgray
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182 cmunique im2double isrgb
609
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183
615
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184 ** `bwarea' now supports all image classes and considers objects all non
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185 zero pixels (not all pixels higher than zero).
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186
609
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187 ** `rgb2gray' now also supports images of the class single and performs a
ea8f2e7d270a rgb2gray: perform weighted conversion based on luminance values
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188 weighted conversion to keep the image luminance instead of a the mean
ea8f2e7d270a rgb2gray: perform weighted conversion based on luminance values
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189 through each color.
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190
613
c33c12769b71 im2bw: added tests, use more of other functions, more input check at start, support for int16 input images
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191 ** `im2bw' now supports input images of the int16 class and deals better with
c33c12769b71 im2bw: added tests, use more of other functions, more input check at start, support for int16 input images
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192 RGB images since it uses `rgb2gray' internally (see changes to rgb2gray).
616
76f3cb3e44ce im2bw: threshold should be greater than only (matlab compatible)
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193 Threshold is performed on all values greater than value instead of greater
76f3cb3e44ce im2bw: threshold should be greater than only (matlab compatible)
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194 than or equal.
613
c33c12769b71 im2bw: added tests, use more of other functions, more input check at start, support for int16 input images
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195
564
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196 ** `imhist' is much more compatible with matlab and among other changes,
7db61a0a2632 imhist: complete rewrite of the function to be matlab compatible. Added test cases. No old code left so removed old copyright owners.
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197 it now uses the whole range of the class for the histogram rather than
618
41c917791057 imhist: display colorbar under histogram
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198 the minimum and maximum of the input image and displays a colorbar under
41c917791057 imhist: display colorbar under histogram
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199 the histogram.
564
7db61a0a2632 imhist: complete rewrite of the function to be matlab compatible. Added test cases. No old code left so removed old copyright owners.
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200
506
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201 ** `isbw' now defines a black-and-white image as a binary non-sparse
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carandraug
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202 matrix. This is compatible with matlab. To use the old behaviour,
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203 use the new option for the call "isbw (img, "non-logical").
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204 For backwards compatibility, if a non-logical matrix of 0 and 1 is
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205 used as input, `isbw' will still return true but a warning will be
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206 issued since this will deprecated later.
512
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207
612
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208 ** `isgray' now also returns true for matrices of the int16 class.
7c1df1b5f058 isgray: return true for int16 class
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209
512
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210 ** `isrgb' now returns false for logical matrix.
562
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211
563
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212 ** `tiff_tag_read' had several bug fixes and can now check IFDs beyond
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213 the first. It can also accept mutiple tag values and IFDs simultaneously
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214 and return a matrix of the values found. Its documentation has been
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215 expanded (as well as an explanation of TIFF structure on the source)
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216
629
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217 ** For sake of matlab compatibility, the behaviour of `mat2gray' has been
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218 greatly changed. Among the changes, it will no longer swap the minimum and
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219 maximum options if the first is larger than the later. Instead, will return
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220 the image complement after truncation. Also, when the maximum and minimum
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221 values are equal, `mat2gray' will truncate all values between 0 and 1. See
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222 the help text (or source) for a detailed description of cautions.
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223
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224 ** `bwfill' was fixed to always returns a logical matrix.
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225
650
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226 ** `imnoise' has been expanded to accept images of differente classes instead
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227 of only double and single.
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228
639
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229 ** The private function `__bwdist` has been renamed `__bwdist__`
bb079ed7bef5 __bwdist: rename to __bwdist__ (private functions should have __ on both sides)
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230
589
31736083c9a5 image: now dependent on >=3.6.0 due to nthargout on regionprops
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231 ** Package is now dependent on GNU Octave version 3.6.0 or later.
31736083c9a5 image: now dependent on >=3.6.0 due to nthargout on regionprops
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232
661
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233 ** Package is now dependent on the signal package version 1.2.0 or later.
626
256ef5a8d711 graythresh: implementation of concavity, intermeans, intermodes, MaxEntropy, MaxLikelihood, mean, minimum, MinError, moments and percentile methods from the HistThresh toolbox
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234
562
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235 ** Package is no longer automatically loaded.
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236
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237
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238 ********************************************************************************
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239 ** **
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240 ** NEWS below this point were written after their releases for history **
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241 ** purposes and extracted from the Octave Forge general NEWS. Previous to **
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242 ** the image package version 1.0.11, all Octave Forge packages would be **
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243 ** released at the same time. Previous to the package version 1.0.0 there **
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244 ** were monolithic releases with no actual packages. This means that some **
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245 ** releases actually had no changes in the image package itself or changes **
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246 ** were small compared to the whole Octave Forge project and so, not **
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247 ** mentioned on the NEWS file. Inspection of the actual log in the **
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248 ** repository should be used if exact details are required. **
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249 ** **
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250 ********************************************************************************
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251
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252 Summary of important user-visible changes for image 1.0.15 (2011/09/21):
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253 --------------------------------------------------------------------------
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254
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255 Summary of important user-visible changes for image 1.0.14 (2011/04/12):
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256 --------------------------------------------------------------------------
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257
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258 Summary of important user-visible changes for image 1.0.13 (2010/05/22):
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259 --------------------------------------------------------------------------
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260
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261 Summary of important user-visible changes for image 1.0.12 (2010/03/22):
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262 --------------------------------------------------------------------------
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263
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264 Summary of important user-visible changes for image 1.0.11 (2010/03/05):
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265 --------------------------------------------------------------------------
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266
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267 Summary of important user-visible changes for image 1.0.10 (2009/06/07):
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268 --------------------------------------------------------------------------
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269
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270 Summary of important user-visible changes for image 1.0.9 (2009/05/08):
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271 -------------------------------------------------------------------------
717
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272
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273 ** The following functions are new:
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274
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275 entropyfilt ordfiltn rangefilt stdfilt
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276
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277 ** The following functions have been removed as they are now part of
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278 Octave core:
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279
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280 imread imwrite
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281
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282 Summary of important user-visible changes for image 1.0.8 (2008/08/31):
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283 -------------------------------------------------------------------------
717
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284
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285 ** Fix build issues with the last release.
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286
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287 Summary of important user-visible changes for image 1.0.7 (2008/08/24):
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288 -------------------------------------------------------------------------
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289
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290 Summary of important user-visible changes for image 1.0.6 (2008/04/29):
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291 -------------------------------------------------------------------------
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292
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293 ** The following functions are new:
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294
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295 imcomplement rgbplot
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296
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297 ** Implemented support for bilateral filtering.
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298
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299 ** Build fixes for new versions of ImageMagick.
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300
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301 Summary of important user-visible changes for image 1.0.5 (2008/02/16):
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302 -------------------------------------------------------------------------
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303
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304 ** The following functions are new:
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305
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306 imfilter imsmooth
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307
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308 Summary of important user-visible changes for image 1.0.4 (2007/12/12):
768
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309 -------------------------------------------------------------------------
717
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310
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311 Summary of important user-visible changes for image 1.0.3 (2007/10/14):
768
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312 -------------------------------------------------------------------------
717
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313
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314 Summary of important user-visible changes for image 1.0.2 (2007/07/26):
768
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315 -------------------------------------------------------------------------
717
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316
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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diff changeset
317 Summary of important user-visible changes for image 1.0.1 (2007/05/26):
768
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318 -------------------------------------------------------------------------
717
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319
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diff changeset
320 Summary of important user-visible changes for image 1.0.0 (2007/03/28):
768
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Carnë Draug <carandraug@octave.org>
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diff changeset
321 -------------------------------------------------------------------------
717
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322
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diff changeset
323 ** First non-monolithic release.
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324
174624c18b27 maint: list image package NEWS from very old releases
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diff changeset
325 ** The following functions are new:
174624c18b27 maint: list image package NEWS from very old releases
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326
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327 __bwarea fspecial impersepectivewap
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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328 apply graythresh imremap
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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329 bwarea im2double label2rgb
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carandraug
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diff changeset
330 bwperim im2uint8 __magick_read__
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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diff changeset
331 deriche im2uint16
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332
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diff changeset
333 ** Fixex for non 8bit images.
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334
174624c18b27 maint: list image package NEWS from very old releases
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diff changeset
335 ** Quantum sizes in imagemagick.
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336
174624c18b27 maint: list image package NEWS from very old releases
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diff changeset
337 ** Compatiability changes to imwrite, isgray and rgb2gray.
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338
174624c18b27 maint: list image package NEWS from very old releases
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diff changeset
339 ** imread, probe depth from bits rather than Red field, allows loading of gray
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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diff changeset
340 scale images.
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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diff changeset
341
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carandraug
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diff changeset
342 ** Convert all functions to use texinfo help.
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343
768
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diff changeset
344 Summary of important user-visible changes for image (Octave Forge 2006.07.09):
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diff changeset
345 --------------------------------------------------------------------------------
717
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346
768
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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diff changeset
347 Summary of important user-visible changes for image (Octave Forge 2006.03.17):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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parents: 767
diff changeset
348 --------------------------------------------------------------------------------
717
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349
768
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diff changeset
350 Summary of important user-visible changes for image (Octave Forge 2006.01.28):
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diff changeset
351 --------------------------------------------------------------------------------
717
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352
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353 ** imread() now return the appropriate numeric class. Colour images are of size
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354 MxNx3, gray images MxN.
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355
768
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diff changeset
356 Summary of important user-visible changes for image (Octave Forge 2005.06.13):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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diff changeset
357 --------------------------------------------------------------------------------
717
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358
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diff changeset
359 ** The following functions are new:
174624c18b27 maint: list image package NEWS from very old releases
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360
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361 bwarea imresize
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362
768
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diff changeset
363 Summary of important user-visible changes for image (Octave Forge 2004.11.16):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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parents: 767
diff changeset
364 --------------------------------------------------------------------------------
717
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diff changeset
365
768
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diff changeset
366 ** No important changes to the image package in this Octave Forge release.
717
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367
768
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diff changeset
368 Summary of important user-visible changes for image (Octave Forge 2004.09.09):
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diff changeset
369 --------------------------------------------------------------------------------
717
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370
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diff changeset
371 ** The following functions are new:
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diff changeset
372
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carandraug
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373 applylut cmunique houghtf poly2mask uintlut
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carandraug
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374 bestblk col2im im2col qtdecomp
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carandraug
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375 blkproc conndef isrgb qtgetblk
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carandraug
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diff changeset
376 bweuler dilate makelut qtsetblk
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carandraug
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diff changeset
377 bwmorph erode nlfilter roicolor
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carandraug
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378 cmpermute graycomatrix padarray stretchlim
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379
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diff changeset
380 ** Implemented initial support for int* types.
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381
768
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diff changeset
382 Summary of important user-visible changes for image (Octave Forge 2004.07.07):
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diff changeset
383 --------------------------------------------------------------------------------
717
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diff changeset
384
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385 ** No important changes to the image package in this Octave Forge release.
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carandraug
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diff changeset
386
768
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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diff changeset
387 Summary of important user-visible changes for image (Octave Forge 2004.02.12):
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diff changeset
388 --------------------------------------------------------------------------------
717
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diff changeset
389
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diff changeset
390 ** `imread' now supports 16-bit grayscale images.
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391
768
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392 Summary of important user-visible changes for image (Octave Forge 2003.06.02):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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diff changeset
393 --------------------------------------------------------------------------------
717
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carandraug
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diff changeset
394
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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diff changeset
395 ** The following functions are new:
174624c18b27 maint: list image package NEWS from very old releases
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diff changeset
396
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diff changeset
397 rotate_scale
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diff changeset
398
768
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diff changeset
399 Summary of important user-visible changes for image (Octave Forge 2003.02.22):
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diff changeset
400 --------------------------------------------------------------------------------
717
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diff changeset
401
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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diff changeset
402 ** No important changes to the image package in this Octave Forge release.
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carandraug
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diff changeset
403
768
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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diff changeset
404 Summary of important user-visible changes for image (Octave Forge 2002.11.30):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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diff changeset
405 --------------------------------------------------------------------------------
717
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carandraug
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diff changeset
406
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carandraug
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diff changeset
407 ** The following functions are new:
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diff changeset
408
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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409 colfilt imginfo imrotate imshear imtranslate
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carandraug
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diff changeset
410
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carandraug
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diff changeset
411 ** The `colorgradient' function now allow instantaneous transitions (weight 0)
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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diff changeset
412
174624c18b27 maint: list image package NEWS from very old releases
carandraug
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diff changeset
413 ** The `bwlabel' function has been implemented in C++ and may behave different.
768
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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414
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diff changeset
415 Summary of important user-visible changes for image (Octave Forge 2002.05.09):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
Carnë Draug <carandraug@octave.org>
parents: 767
diff changeset
416 --------------------------------------------------------------------------------
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
Carnë Draug <carandraug@octave.org>
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417
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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diff changeset
418 Summary of important user-visible changes for image (Octave Forge 2002.04.20):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
Carnë Draug <carandraug@octave.org>
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419 --------------------------------------------------------------------------------
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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diff changeset
420
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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parents: 767
diff changeset
421 Summary of important user-visible changes for image (Octave Forge 2002.03.10):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
Carnë Draug <carandraug@octave.org>
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diff changeset
422 --------------------------------------------------------------------------------
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diff changeset
423
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
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diff changeset
424 Summary of important user-visible changes for image (Octave Forge 2001.11.02):
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
Carnë Draug <carandraug@octave.org>
parents: 767
diff changeset
425 --------------------------------------------------------------------------------
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
Carnë Draug <carandraug@octave.org>
parents: 767
diff changeset
426
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
Carnë Draug <carandraug@octave.org>
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diff changeset
427 ** First release.
8f13dc2ccfd4 maint: add and fix old entries on NEWS file
Carnë Draug <carandraug@octave.org>
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diff changeset
428