Mercurial > hg > octave-image
annotate NEWS @ 658:24d88d1a329d
image: prepare NEWS for new release
| author | carandraug |
|---|---|
| date | Tue, 16 Oct 2012 17:18:47 +0000 |
| parents | 72a6590f05aa |
| children | d8b4930b0f98 |
| rev | line source |
|---|---|
| 658 | 1 Summary of important user-visible changes for image 2.0.0: |
| 504 | 2 ------------------------------------------------------------------- |
| 3 | |
| 4 ** The following functions are new: | |
| 5 | |
| 658 | 6 analyze75info imabsdiff iptcheckconn |
| 7 analyze75read imadd iptcheckmap | |
| 8 analyze75write imbothat iptchecknargin | |
| 9 blockproc imcrop iptcheckstrs | |
| 10 bwlabeln imdivide iptnum2ordinal | |
| 11 getrangefromclass imlincomb iscolormap | |
| 12 im2int16 immultiply normxcorr2 | |
| 13 im2single imsubtract wavelength2rgb | |
| 504 | 14 |
| 15 ** The following functions have been deprecated in previous releases | |
| 16 of the image package and have now been removed: | |
| 17 | |
| 18 imginfo | |
| 19 | |
|
642
1a186da3e07c
image: mention analyze75write on NEWS, remove executable bit from analyze75write, add missing functinos to INDEX
carandraug
parents:
639
diff
changeset
|
20 ** The complete set of functions to work with Analyze 7.5 files has been |
|
1a186da3e07c
image: mention analyze75write on NEWS, remove executable bit from analyze75write, add missing functinos to INDEX
carandraug
parents:
639
diff
changeset
|
21 implemented. See `analyze75info', `analyze75read' and `analyze75write'. |
|
1a186da3e07c
image: mention analyze75write on NEWS, remove executable bit from analyze75write, add missing functinos to INDEX
carandraug
parents:
639
diff
changeset
|
22 |
|
632
d874709a9a27
graythresh: accept histogram as input. Also, there's no code left from Barre-Piquot and removed from copyright.
carandraug
parents:
630
diff
changeset
|
23 ** `graythresh' can optionally accept an histogram rather than an image. This |
|
d874709a9a27
graythresh: accept histogram as input. Also, there's no code left from Barre-Piquot and removed from copyright.
carandraug
parents:
630
diff
changeset
|
24 allows for preprocessing of the histogram previous to an automatic threshold |
|
d874709a9a27
graythresh: accept histogram as input. Also, there's no code left from Barre-Piquot and removed from copyright.
carandraug
parents:
630
diff
changeset
|
25 selection. |
|
d874709a9a27
graythresh: accept histogram as input. Also, there's no code left from Barre-Piquot and removed from copyright.
carandraug
parents:
630
diff
changeset
|
26 |
|
d874709a9a27
graythresh: accept histogram as input. Also, there's no code left from Barre-Piquot and removed from copyright.
carandraug
parents:
630
diff
changeset
|
27 ** Otsu's method for automatic threshold selection (default for `graythresh') |
|
d874709a9a27
graythresh: accept histogram as input. Also, there's no code left from Barre-Piquot and removed from copyright.
carandraug
parents:
630
diff
changeset
|
28 has been completely rewritten and should perform faster. Now, it can also |
|
d874709a9a27
graythresh: accept histogram as input. Also, there's no code left from Barre-Piquot and removed from copyright.
carandraug
parents:
630
diff
changeset
|
29 return a second value representing the ``goodness'' of the computed |
|
d874709a9a27
graythresh: accept histogram as input. Also, there's no code left from Barre-Piquot and removed from copyright.
carandraug
parents:
630
diff
changeset
|
30 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.
carandraug
parents:
565
diff
changeset
|
31 |
| 623 | 32 ** Alternative algorithms for automatic threshold have been implemented in |
| 33 `graythresh' (thanks to Antti Niemistö for releasing HistThresh toolbox | |
| 34 http://www.cs.tut.fi/~ant/histthresh/ from where many were ported, under a | |
|
632
d874709a9a27
graythresh: accept histogram as input. Also, there's no code left from Barre-Piquot and removed from copyright.
carandraug
parents:
630
diff
changeset
|
35 GPL license). Currently, the following algorithms have been implemented |
| 623 | 36 (see graythresh for notes and references): |
| 37 | |
| 658 | 38 concavity MaxEntropy minimum Otsu |
| 39 intermeans MaxLikelihood MinError percentile | |
| 40 intermodes mean moments | |
| 623 | 41 |
| 504 | 42 ** The following functions have been deprecated (see their help text |
| 43 for the recommended alternatives): | |
| 44 | |
| 658 | 45 blkproc bmpwrite dilate erode |
| 504 | 46 |
| 47 ** With the new function `imbothat' the transform option of | |
| 48 `imtophat' has been deprecated. | |
| 49 | |
|
506
3b5c14635553
image: added important note on NEWS about new behaviour of isbw
carandraug
parents:
504
diff
changeset
|
50 ** The following functions have had been changed for bug fixes and/or |
| 504 | 51 improved matlab compatibility |
| 52 | |
| 658 | 53 bwarea imhist im2uint8 isind |
| 54 bweuler imnoise im2uint16 mat2gray | |
| 55 bwfill conndef isbw rgb2gray | |
| 56 cmpermute im2bw isgray | |
| 57 cmunique im2double isrgb | |
|
609
ea8f2e7d270a
rgb2gray: perform weighted conversion based on luminance values
carandraug
parents:
608
diff
changeset
|
58 |
|
615
8d3210ae9a4a
bwarea: accept any class and objects are all non-zero instead of all higher than zero
carandraug
parents:
613
diff
changeset
|
59 ** `bwarea' now supports all image classes and considers objects all non |
|
8d3210ae9a4a
bwarea: accept any class and objects are all non-zero instead of all higher than zero
carandraug
parents:
613
diff
changeset
|
60 zero pixels (not all pixels higher than zero). |
|
8d3210ae9a4a
bwarea: accept any class and objects are all non-zero instead of all higher than zero
carandraug
parents:
613
diff
changeset
|
61 |
|
609
ea8f2e7d270a
rgb2gray: perform weighted conversion based on luminance values
carandraug
parents:
608
diff
changeset
|
62 ** `rgb2gray' now also supports images of the class single and performs a |
|
ea8f2e7d270a
rgb2gray: perform weighted conversion based on luminance values
carandraug
parents:
608
diff
changeset
|
63 weighted conversion to keep the image luminance instead of a the mean |
|
ea8f2e7d270a
rgb2gray: perform weighted conversion based on luminance values
carandraug
parents:
608
diff
changeset
|
64 through each color. |
|
506
3b5c14635553
image: added important note on NEWS about new behaviour of isbw
carandraug
parents:
504
diff
changeset
|
65 |
|
613
c33c12769b71
im2bw: added tests, use more of other functions, more input check at start, support for int16 input images
carandraug
parents:
612
diff
changeset
|
66 ** `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
carandraug
parents:
612
diff
changeset
|
67 RGB images since it uses `rgb2gray' internally (see changes to rgb2gray). |
|
616
76f3cb3e44ce
im2bw: threshold should be greater than only (matlab compatible)
carandraug
parents:
615
diff
changeset
|
68 Threshold is performed on all values greater than value instead of greater |
|
76f3cb3e44ce
im2bw: threshold should be greater than only (matlab compatible)
carandraug
parents:
615
diff
changeset
|
69 than or equal. |
|
613
c33c12769b71
im2bw: added tests, use more of other functions, more input check at start, support for int16 input images
carandraug
parents:
612
diff
changeset
|
70 |
|
564
7db61a0a2632
imhist: complete rewrite of the function to be matlab compatible. Added test cases. No old code left so removed old copyright owners.
carandraug
parents:
563
diff
changeset
|
71 ** `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.
carandraug
parents:
563
diff
changeset
|
72 it now uses the whole range of the class for the histogram rather than |
| 618 | 73 the minimum and maximum of the input image and displays a colorbar under |
| 74 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.
carandraug
parents:
563
diff
changeset
|
75 |
|
506
3b5c14635553
image: added important note on NEWS about new behaviour of isbw
carandraug
parents:
504
diff
changeset
|
76 ** `isbw' now defines a black-and-white image as a binary non-sparse |
|
3b5c14635553
image: added important note on NEWS about new behaviour of isbw
carandraug
parents:
504
diff
changeset
|
77 matrix. This is compatible with matlab. To use the old behaviour, |
|
3b5c14635553
image: added important note on NEWS about new behaviour of isbw
carandraug
parents:
504
diff
changeset
|
78 use the new option for the call "isbw (img, "non-logical"). |
|
3b5c14635553
image: added important note on NEWS about new behaviour of isbw
carandraug
parents:
504
diff
changeset
|
79 For backwards compatibility, if a non-logical matrix of 0 and 1 is |
|
3b5c14635553
image: added important note on NEWS about new behaviour of isbw
carandraug
parents:
504
diff
changeset
|
80 used as input, `isbw' will still return true but a warning will be |
|
3b5c14635553
image: added important note on NEWS about new behaviour of isbw
carandraug
parents:
504
diff
changeset
|
81 issued since this will deprecated later. |
| 512 | 82 |
| 612 | 83 ** `isgray' now also returns true for matrices of the int16 class. |
| 84 | |
| 512 | 85 ** `isrgb' now returns false for logical matrix. |
| 562 | 86 |
|
563
d2a6dc5e921e
tiff_tag_read: deal with multiple tag and IFD beyond the first and improved documentation
carandraug
parents:
562
diff
changeset
|
87 ** `tiff_tag_read' had several bug fixes and can now check IFDs beyond |
|
d2a6dc5e921e
tiff_tag_read: deal with multiple tag and IFD beyond the first and improved documentation
carandraug
parents:
562
diff
changeset
|
88 the first. It can also accept mutiple tag values and IFDs simultaneously |
|
d2a6dc5e921e
tiff_tag_read: deal with multiple tag and IFD beyond the first and improved documentation
carandraug
parents:
562
diff
changeset
|
89 and return a matrix of the values found. Its documentation has been |
|
d2a6dc5e921e
tiff_tag_read: deal with multiple tag and IFD beyond the first and improved documentation
carandraug
parents:
562
diff
changeset
|
90 expanded (as well as an explanation of TIFF structure on the source) |
|
d2a6dc5e921e
tiff_tag_read: deal with multiple tag and IFD beyond the first and improved documentation
carandraug
parents:
562
diff
changeset
|
91 |
| 629 | 92 ** For sake of matlab compatibility, the behaviour of `mat2gray' has been |
| 93 greatly changed. Among the changes, it will no longer swap the minimum and | |
| 94 maximum options if the first is larger than the later. Instead, will return | |
| 95 the image complement after truncation. Also, when the maximum and minimum | |
| 96 values are equal, `mat2gray' will truncate all values between 0 and 1. See | |
| 97 the help text (or source) for a detailed description of cautions. | |
| 98 | |
| 650 | 99 ** `imnoise' has been expanded to accept images of differente classes instead |
| 100 of only double and single. | |
| 101 | |
|
639
bb079ed7bef5
__bwdist: rename to __bwdist__ (private functions should have __ on both sides)
carandraug
parents:
632
diff
changeset
|
102 ** The private function `__bwdist` has been renamed `__bwdist__` |
|
bb079ed7bef5
__bwdist: rename to __bwdist__ (private functions should have __ on both sides)
carandraug
parents:
632
diff
changeset
|
103 |
|
589
31736083c9a5
image: now dependent on >=3.6.0 due to nthargout on regionprops
carandraug
parents:
570
diff
changeset
|
104 ** 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
carandraug
parents:
570
diff
changeset
|
105 |
|
626
256ef5a8d711
graythresh: implementation of concavity, intermeans, intermodes, MaxEntropy, MaxLikelihood, mean, minimum, MinError, moments and percentile methods from the HistThresh toolbox
carandraug
parents:
623
diff
changeset
|
106 ** Package is now dependent on the signal package version 1.2.0 or later.. |
|
256ef5a8d711
graythresh: implementation of concavity, intermeans, intermodes, MaxEntropy, MaxLikelihood, mean, minimum, MinError, moments and percentile methods from the HistThresh toolbox
carandraug
parents:
623
diff
changeset
|
107 |
| 562 | 108 ** Package is no longer automatically loaded. |