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im2bw: threshold should be greater than only (matlab compatible)
author carandraug
date Wed, 26 Sep 2012 08:08:21 +0000
parents 8d3210ae9a4a
children 41c917791057
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1 Summary of important user-visible changes for image 1.1.0:
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2 -------------------------------------------------------------------
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3
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4 ** The following functions are new:
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5
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4c92bffbf4cc analyze75: new functions analyze75read and analyze75info from Adam H Aitkenhead <adamaitkenhead@hotmail.com> through mailing list
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6 analyze75info
4c92bffbf4cc analyze75: new functions analyze75read and analyze75info from Adam H Aitkenhead <adamaitkenhead@hotmail.com> through mailing list
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7 analyze75read
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8 blockproc
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9 bwlabeln
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10 getrangefromclass
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18070036aca2 im2int16: new function for image package and updated list of functinos on seealso help text
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11 im2int16
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be52435a5794 im2single: new function for image package
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12 im2single
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25b2d4cf36bf imabsdiff: new function
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13 imabsdiff
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14 imadd
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15 imbothat
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7fcfcce0b2f9 imcrop: new function for image package. Submitted to mailing list by Pablo Rossi <prossi@ing.unrc.edu.ar>
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16 imcrop
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3210b54557be imdivide immultiply: new functions
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17 imdivide
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5750f9aa690a imlincomb: new function
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18 imlincomb
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3210b54557be imdivide immultiply: new functions
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19 immultiply
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3d630d000a58 imsubtract: new function
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20 imsubtract
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21 iptcheckconn
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22 iptcheckmap
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23 iptchecknargin
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24 iptcheckstrs
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25 iptnum2ordinal
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c47fa2969872 iscolormap: new function to image package
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26 iscolormap
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636b9e92019c normxcorr2: new function is wrapper for xcorr2 from signal package
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27 normxcorr2
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154ffb5d4efe wavelength: new function to image package. Contributed by William Krekeler <WKrekeler@cleanearthtech.com>
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28 wavelength2rgb
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29
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30 ** The following functions have been deprecated in previous releases
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31 of the image package and have now been removed:
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32
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33 imginfo
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34
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35 ** The function `graythresh' now returns a second value representing the
f128e24f3b22 graythresh: return goodness of computed value. Prepare code for multiple algorithms. Avoid var names that shadow core functions.
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36 ``goodness'' of the computed threshold value.
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37
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38 ** The following functions have been deprecated (see their help text
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39 for the recommended alternatives):
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40
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41 blkproc
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99e274772dae bmpwrite: deprecate in favour of imwrite
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42 bmpwrite
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43 dilate
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44 erode
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45
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46 ** With the new function `imbothat' the transform option of
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47 `imtophat' has been deprecated.
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48
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49 ** The following functions have had been changed for bug fixes and/or
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50 improved matlab compatibility
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51
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52 bwarea
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53 bweuler
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1b8b83d01211 Make bwfill output logical type
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54 bwfill
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55 imhist
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56 conndef
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c33c12769b71 im2bw: added tests, use more of other functions, more input check at start, support for int16 input images
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57 im2bw
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23a7bdae105c im2double: added support for binary images (patch by Martin Helm <martin@mhelm.de>)
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58 im2double
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30f0a2a06f02 im2uint8: matlab compatibility and support for indexed images
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59 im2uint8
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26f74317f196 im2uint16: matlab compatibility and support for indexed images
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60 im2uint16
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61 isbw
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62 isgray
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63 isrgb
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64 isind
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5a6afea737df mat2gray: big rewrite, function seems to not be working for several octave releases. Also should now be completely compatible with matlab
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65 mat2gray
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ea8f2e7d270a rgb2gray: perform weighted conversion based on luminance values
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66 rgb2gray
ea8f2e7d270a rgb2gray: perform weighted conversion based on luminance values
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67
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68 ** `bwarea' now supports all image classes and considers objects all non
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69 zero pixels (not all pixels higher than zero).
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70
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71 ** `rgb2gray' now also supports images of the class single and performs a
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72 weighted conversion to keep the image luminance instead of a the mean
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73 through each color.
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75 ** `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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76 RGB images since it uses `rgb2gray' internally (see changes to rgb2gray).
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76f3cb3e44ce im2bw: threshold should be greater than only (matlab compatible)
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77 Threshold is performed on all values greater than value instead of greater
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78 than or equal.
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80 ** `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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81 it now uses the whole range of the class for the histogram rather than
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82 the minimum and maximum of the input image.
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84 ** `isbw' now defines a black-and-white image as a binary non-sparse
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85 matrix. This is compatible with matlab. To use the old behaviour,
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86 use the new option for the call "isbw (img, "non-logical").
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87 For backwards compatibility, if a non-logical matrix of 0 and 1 is
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88 used as input, `isbw' will still return true but a warning will be
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89 issued since this will deprecated later.
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91 ** `isgray' now also returns true for matrices of the int16 class.
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93 ** `isrgb' now returns false for logical matrix.
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94
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95 ** `tiff_tag_read' had several bug fixes and can now check IFDs beyond
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96 the first. It can also accept mutiple tag values and IFDs simultaneously
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97 and return a matrix of the values found. Its documentation has been
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98 expanded (as well as an explanation of TIFF structure on the source)
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99
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100 ** Package is now dependent on GNU Octave version 3.6.0 or later.
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102 ** Package is no longer automatically loaded.