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The {{Forge|image|image package}} is part of the Octave Forge project. See its {{Forge|image|homepage}} for the latest release.
+
The {{Forge|image|image package}} is part of the octave-forge project. See its {{Forge|image|homepage}} for the latest release.
 
 
<div class="tocinline">__TOC__</div>
 
  
 
== Development ==
 
== Development ==
  
 
Follows an incomplete list of stuff missing in the image package to be matlab compatible. Bugs are not listed here, [https://savannah.gnu.org/bugs/?func=search&group=octave search] and [https://savannah.gnu.org/bugs/?func=additem&group=octave report] them on the bug tracker instead.
 
Follows an incomplete list of stuff missing in the image package to be matlab compatible. Bugs are not listed here, [https://savannah.gnu.org/bugs/?func=search&group=octave search] and [https://savannah.gnu.org/bugs/?func=additem&group=octave report] them on the bug tracker instead.
 +
 +
=== Roadmap ===
 +
 +
The following are missing targets for the next minor release of the image package (version 2.8.0).  Small bug fixes, build fixes, and regressions may still be released before in a patch release (Version 2.6.X).
 +
 +
* add ellipse properties to {{codeline|regionprops}} (see bug {{bug|44100}})  ([http://hg.code.sf.net/p/octave/image/rev/7cf22a478792 done])
 +
* speed up {{codeline|regionprops}} for large images with many small objects (probably work around for loop with labeled == labelid)
 +
* support passing {{codeline|bwconncomp}} output to {{codeline|regionprops}} (and then fix {{codeline|bwpropfilt}} to use that instead of a labeled image)
 +
* ND support on {{codeline|imfilter}}
 +
* check if {{codeline|normxcorr2}} is Matlab compatible and investigate making use of {{codeline|fftconvn}} since it's likely to receive large input
 +
* investigate implementing the missing deconvolution functions (see patch {{patch|8571}})
 +
* anything else that is done or submitted before the above are done
  
 
=== Missing functions ===
 
=== Missing functions ===
Line 13: Line 23:
 
* activecontour
 
* activecontour
 
* adapthisteq
 
* adapthisteq
* [https://savannah.gnu.org/patch/?8824 affine2d]
+
* affine2d
 
* affine3d
 
* affine3d
 
* applycform
 
* applycform
 +
* axes2pix
 
* bwconvhull
 
* bwconvhull
 
* bwdistgeodesic
 
* bwdistgeodesic
 
* bwlookup
 
* bwlookup
 +
* bwpack
 
* bwtraceboundary
 
* bwtraceboundary
 
* bwulterode
 
* bwulterode
* chromadapt
+
* bwunpack
* colorcloud
 
 
* convmtx2
 
* convmtx2
 
* corner
 
* corner
Line 31: Line 42:
 
* dct2
 
* dct2
 
* dctmtx
 
* dctmtx
* imbinarize
 
 
* deconvblind
 
* deconvblind
 
* deconvlucy
 
* deconvlucy
 
* deconvreg
 
* deconvreg
* [https://savannah.gnu.org/patch/?9365 deconvwnr]
+
* deconvwnr
 
* decorrstretch
 
* decorrstretch
* [https://savannah.gnu.org/patch/?9593 demosaic]
+
* demosaic
 
* dicomanon
 
* dicomanon
 
* dicomdisp
 
* dicomdisp
 
* dicomuid
 
* dicomuid
 +
* dpxread
 
* dpxinfo
 
* dpxinfo
* dpxread
 
 
* fan2para
 
* fan2para
 
* fanbeam
 
* fanbeam
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* getrect
 
* getrect
 
* gradientweight
 
* gradientweight
 +
* graycoprops
 
* grayconnected
 
* grayconnected
* graycoprops
 
 
* graydiffweight
 
* graydiffweight
 
* hdrread
 
* hdrread
 
* hdrwrite
 
* hdrwrite
 +
* houghlines -- (see hough_line)
 +
* houghpeaks
 
* iccfind
 
* iccfind
 
* iccread
 
* iccread
Line 69: Line 81:
 
* idct2
 
* idct2
 
* ifanbeam
 
* ifanbeam
* illumgray
 
* illumpca
 
* illumwhite
 
 
* im2java2d
 
* im2java2d
 
* ImageAdapter
 
* ImageAdapter
 
* imageinfo
 
* imageinfo
* [https://savannah.gnu.org/patch/?9717 imapplymatrix]
+
* imapplymatrix
 
* imapprox
 
* imapprox
* imbinarize
 
 
* imboxfilt
 
* imboxfilt
 
* imboxfilt3
 
* imboxfilt3
Line 86: Line 94:
 
* imdistline
 
* imdistline
 
* imellipse
 
* imellipse
 +
* imextendedmax
 +
* imextendedmin
 +
* imfindcircles
 
* imfreehand
 
* imfreehand
* [https://savannah.gnu.org/patch/?9730 imfuse]
+
* imfuse
 
* imgaborfilt
 
* imgaborfilt
 
* imgaussfilt
 
* imgaussfilt
Line 96: Line 107:
 
* imhandles
 
* imhandles
 
* imhistmatch
 
* imhistmatch
 +
* imhmax
 +
* imhmin
 +
* imimposemin
 
* imline
 
* imline
 
* immagbox
 
* immagbox
Line 101: Line 115:
 
* imoverview
 
* imoverview
 
* imoverviewpanel
 
* imoverviewpanel
* [https://savannah.gnu.org/patch/?8722 impixelinfo]
+
* impixelinfo
* [https://savannah.gnu.org/patch/?8722 impixelinfoval]
+
* impixelinfoval
 +
* impixelregionpanel
 
* impixelregion
 
* impixelregion
* impixelregionpanel
 
 
* implay
 
* implay
 
* impoint
 
* impoint
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* improfile
 
* improfile
 
* imrect
 
* imrect
* imreducehaze
 
 
* imref2d
 
* imref2d
 
* imref3d
 
* imref3d
Line 127: Line 140:
 
* integralBoxFilter
 
* integralBoxFilter
 
* integralBoxFilter3
 
* integralBoxFilter3
* [https://savannah.gnu.org/patch/?9606 integralImage]
+
* integralImage
 
* integralImage3
 
* integralImage3
 
* interfileinfo
 
* interfileinfo
Line 145: Line 158:
 
* isicc
 
* isicc
 
* isrset
 
* isrset
* [https://savannah.gnu.org/patch/?9600 lin2rgb]
 
 
* makecform
 
* makecform
 
* makeConstrainToRectFcn
 
* makeConstrainToRectFcn
 
* makehdr
 
* makehdr
 
* makeresampler
 
* makeresampler
* [https://savannah.gnu.org/patch/?9602 multithresh]
+
* multithresh
 
* nitfinfo
 
* nitfinfo
 
* nitfread
 
* nitfread
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* projective2d
 
* projective2d
 
* regionfill
 
* regionfill
* rgb2lin
 
 
* roifill
 
* roifill
 
* roifilt2
 
* roifilt2
* [https://savannah.gnu.org/patch/?9509 roipoly]
+
* roipoly
 
* rsetwrite
 
* rsetwrite
 
* ssim
 
* ssim
Line 167: Line 178:
 
* truesize
 
* truesize
 
* visboundaries
 
* visboundaries
 +
* viscircles
 
* warp
 
* warp
* [https://savannah.gnu.org/patch/?8060 whitepoint]
+
* whitepoint
* [https://savannah.gnu.org/patch/?9603 xyz2double]
+
* wiener2
* [https://savannah.gnu.org/patch/?9603 xyz2uint16]
+
* xyz2double
 +
* xyz2uint16
 
</div>
 
</div>
  
Line 204: Line 217:
 
|-
 
|-
 
! bug !! bug title !! status
 
! bug !! bug title !! status
 +
|-
 +
| {{bug|38085}} || image package: fails to build with --enable-64 (entropyfilt) || Confirmed
 
|-
 
|-
 
| {{bug|38087}}|| image package: graycomatrix incompatibilities with matlab  || None
 
| {{bug|38087}}|| image package: graycomatrix incompatibilities with matlab  || None
 +
|-
 +
| {{bug|38345}}|| image package: __spatial_filtering__() always returns class double || Confirmed
 
|-
 
|-
 
| {{bug|41674}}|| image package: temporary arrays in imresize are doubles || None
 
| {{bug|41674}}|| image package: temporary arrays in imresize are doubles || None
Line 217: Line 234:
 
| {{bug|44831}}|| image package: imrotate - different dimensions of output matrix || Confirmed
 
| {{bug|44831}}|| image package: imrotate - different dimensions of output matrix || Confirmed
 
|-
 
|-
| {{bug|45088}}|| image package: rangefilt requires domain and image to have equal number of dimensions || In Progress
+
| {{bug|45088}}|| image package: rangefilt requires domain and image to have equal number of dimensions || Patch Reviewed
 
|-
 
|-
 
| {{bug|46745}}|| image package: imresize default method (bicubic) Matlab incompatible for the border pixels|| None
 
| {{bug|46745}}|| image package: imresize default method (bicubic) Matlab incompatible for the border pixels|| None
 +
|-
 +
| {{bug|47115}}|| label2rgb from image-package doesn't work for labels with value above the uint16 limit|| Confirmed
 
|-
 
|-
 
| {{bug|48529}}|| image package: compilation warnings under Mac OSX|| None
 
| {{bug|48529}}|| image package: compilation warnings under Mac OSX|| None
 
|-
 
|-
 +
| {{bug|50071}}|| OF image: bwfill(...,4) in Octave behaves like bwfill(...,8) in MATLAB and vice versa|| None
 
|-
 
|-
 
| {{bug|50151}}|| image package: normxcorr2 is not compatible with Matlab|| None
 
| {{bug|50151}}|| image package: normxcorr2 is not compatible with Matlab|| None
Line 240: Line 260:
 
| {{bug|50732}} || Image package: infinite error loop when assigning a strel (class) object to a vector|| Confirmed
 
| {{bug|50732}} || Image package: infinite error loop when assigning a strel (class) object to a vector|| Confirmed
 
|-
 
|-
| {{bug|51420}} || [octave forge] (image) imrotate is less tolerant to missing argument than Matlab || None
+
| {{bug|50783}} || image package: imlincomb is not compatible with Matlab || none
|-
 
| {{bug|51719}} || [octave forge] (image) watershed unit test failure || None
 
|-
 
| {{bug|51769}} || [octave forge] (image) imresize bilinear interpolation inaccurate || Patch Submitted
 
|-
 
| {{bug|51884}} || [octave forge] (image) bwmorph(blackNwhiteMatrix, "thicken", 1) returns negated result (+ strange behavior at border) || None
 
|-
 
| {{bug|51979}} || [octave forge] (image) Failing unit test for impyramid || None
 
|-
 
| {{bug|51980}} || [octave forge] (image) Failing unit test for edge|| None
 
|-
 
| {{bug|52006}} || [octave forge] (image) 'makecform' feature request || Confirmed
 
|-
 
| {{bug|52119}} || [octave forge] (image) Add 'reflect' padding option to imfilter || None
 
|-
 
| {{bug|52715}} || [octave forge] (image) Add full data range option to ycbcrfunc conversions || None
 
|-
 
| {{bug|52959}} || [octave forge] (image) histeq is not compatible with Matlab || None
 
|-
 
| {{bug|55059}} || [octave forge] (image) Failing unit test for grayslice || In Progress
 
|-
 
| {{bug|55202}} || [octave forge] (image) imresize fails for method nearest and image of 1 row  || Confirmed
 
 
|-
 
|-
 
|}
 
|}
Line 275: Line 273:
 
* {{patch|8571}}: image package: three deconvolution routines (Wiener, RL, RLTV)
 
* {{patch|8571}}: image package: three deconvolution routines (Wiener, RL, RLTV)
 
* {{patch|8824}}: added affine2d class
 
* {{patch|8824}}: added affine2d class
* {{patch|9509}}: Image package: simple implementation of roipoly function
+
* {{patch|9235}}: image package: improve filtering functions (stdfilt, entropyfilt) and add tests (also medfilt2, ordfilt2, rangefilt)
* {{patch|9593}}: [Octave Forge] (Image) New function demosaic.m from bug #50708
+
* {{patch|9244}}: image package: regionprops.m - new properties ConvexHull, ConvexImage, ConvexArea, Solidity
* {{patch|9600}}: [Octave Forge] (Image) New functions: lin2rgb.m and lrgb2lin.m
+
[[Category:Octave-Forge]]
* {{patch|9602}}: [octave forge] (image) multithresh
 
* {{patch|9603}}: [Octave Forge] (Image) New functions: xyz2double.m, xyz2single.m, xyz2uint16.m
 
* {{patch|9717}}: [octave forge] (image) new function imapplymatrix
 
* {{patch|9729}}: [octave forge] (image) -- rgb2xyz conversion with adapted whitepoint
 
* {{patch|9730}}: [octave forge] (image) new function imfuse
 
 
 
== Image Processing Functions ==
 
 
 
{{Note| This section is still under construction so the list is incomplete.}}
 
 
 
This is a list of Image Processing functions by topic including: missing functions, related bugs and patches, and some alternatives.
 
 
 
Note: 
 
 
 
=== Basic Read and Write Image Files ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives !! Notes
 
|-
 
| imfinfo || function is in Octave core || || ||
 
|-
 
| imread|| function is in Octave core || || [http://kyamagu.github.io/mexopencv/matlab/imread.html cv.imread] from [https://github.com/kyamagu/mexopencv mexopencv] ||
 
in case of color image, the color order of Octave is RGB/RGBA while OpenCV color order is BGR/BGRA
 
|-
 
| imwrite|| function is in Octave core || || [http://kyamagu.github.io/mexopencv/matlab/imread.html cv.imwrite] from [https://github.com/kyamagu/mexopencv mexopencv] ||
 
in case of color image, the color order of Octave is RGB/RGBA while OpenCV color order is BGR/BGRA
 
|-
 
|}
 
 
 
'''Missing:''' ''dicomanon, dicomdisp, dicomuid, dpxinfo, dpxread, interfileinfo, interfileread, nitfinfo, nitfread
 
''
 
 
 
=== High Dynamic Range Images - ''Not implemented'' ===
 
 
 
=== Large Image Files - ''Not implemented'' ===
 
 
 
=== Type Conversion  ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives || Notes
 
|-
 
| adaptthresh || - || ||  [http://kyamagu.github.io/mexopencv/matlab/adaptiveThreshold.html cv.adaptiveThreshold] from [https://github.com/kyamagu/mexopencv mexopencv]||
 
|-
 
| demosaic || - || {{bug|50708}} {{patch|9593}}|| [http://kyamagu.github.io/mexopencv/matlab/demosaicing.html cv.demosaicing] from [https://github.com/kyamagu/mexopencv mexopencv] ||
 
|-
 
| gray2ind || function is in Octave core || || ||
 
|-
 
| grayslice || < 1.0.0 || ||  ||
 
|-
 
| graythresh || 1.0.0 || || || Octave version has more methods
 
|-
 
| im2double || 1.0.0 || || ||
 
|-
 
| im2int16  || 2.0.0 || || ||
 
|-
 
| im2java2d ||  -    || || ||
 
|-
 
| im2single || 2.0.0 || || ||
 
|-
 
| im2uint16 || 1.0.0 || || ||
 
|-
 
| im2uint8  || 1.0.0 || || ||
 
|-
 
| imbinarize || - || || imbinarize (I) is equivalent to im2bw(I, graythresh(I)),
 
another option is [http://kyamagu.github.io/mexopencv/matlab/threshold.html cv.threshold]  from [https://github.com/kyamagu/mexopencv mexopencv]
 
||
 
|-
 
| imcast    || 2.4.0 || || || Octave Only
 
|-
 
| imquantize || 2.6.0 || ||  ||
 
|-
 
| ind2gray  ||  function is in Octave core || || ||
 
|-
 
| ind2rgb  || function is in Octave core || || ||
 
|-
 
| label2rgb || 1.0.0 || || ||
 
|-
 
| mat2gray || < 1.0.0 || || ||
 
|-
 
| multithresh || - || {{patch|9602}} || ||
 
|-
 
| otsuthresh || - ||  {{patch|9360}} || graythresh || otsuthresh(hist) is equivalent to graythresh (hist)
 
|-
 
| rgb2gray || function is in Octave core  || {{bug|53654}} || || Octave version 4.4.0 and above
 
|-
 
| rgb2ind  || function is in Octave core  || || ||
 
|-
 
|}
 
 
 
=== Color ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives || Notes
 
|-
 
| colorangle || 2.10.0 (unreleased) || || ||
 
|-
 
| lab2double || 2.6.0 || || ||
 
|-
 
| lab2rgb || 2.6.0 || || ||
 
|-
 
| lab2uint16 ||  2.6.0  || || ||
 
|-
 
| lab2uint8 ||  2.6.0  || || ||
 
|-
 
| lab2xyz ||  2.6.0  || || ||
 
|-
 
| lin2rgb || - || {{patch|9600}} || ||
 
|-
 
| ntsc2rgb || 2.8.0 || || ||
 
|-
 
| rgb2lab ||  2.6.0  || || ||
 
|-
 
| rgb2lin || - || {{patch|9600}} || ||
 
|-
 
| rgb2ntsc || 2.8.0 || || ||
 
|-
 
| rgb2xyz ||  2.6.0  || || ||
 
|-
 
| rgb2ycbcr ||  < 1.0.0|| || ||
 
|-
 
| whitepoint || - || {{patch|8060}} || ||
 
|-
 
| xyz2double || - || {{patch|9603}} || ||
 
|-
 
| xyz2lab ||  2.6.0  || || ||
 
|-
 
| xyz2rgb ||  2.6.0  || || ||
 
|-
 
| xyz2uint16 || - || {{patch|9603}} || ||
 
|-
 
| ycbcr2rgb ||  2.2.0|| || ||
 
|-
 
|}
 
 
 
'''Missing:''' ''applycform, chromadapt, colorcloud, iccfind, iccread, iccroot, iccwrite, illumgray, illumpca, illumwhite, imapprox, isicc, makecform''
 
 
 
=== Synthetic Images ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives || Notes
 
|-
 
| checkerboard ||  2.2.0 || || ||
 
|-
 
| imnoise ||  2.2.2  || || ||
 
|-
 
| phantom ||  2.6.2  || || ||
 
|-
 
|}
 
 
 
=== Basic Display ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives || Notes
 
|-
 
| imshow || function is in Octave core || || ||
 
|-
 
| montage || - || || ||
 
|-
 
|}
 
 
 
'''Missing:''' ''imfuse, immovie, implay, imshowpair, iptgetpref, iptprefs, iptsetpref, warp''
 
 
 
=== Image Filtering ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives || Notes
 
|-
 
| bwareafilt|| 2.4.0  || || ||
 
|-
 
| bwpropfilt || 2.4.0  || || ||
 
|-
 
| convmtx2 || -  || || ||
 
|-
 
| entropyfilt ||  1.0.9  ||  || ||
 
|-
 
| fibermetric ||-  || || ||
 
|-
 
| freqz2 ||  -|| || ||
 
|-
 
| fsamp2 || - || || ||
 
|-
 
| fspecial || 1.0.0  || || ||
 
|-
 
| ftrans2 ||  - || || ||
 
|-
 
| fwind1 || - || || ||
 
|-
 
| fwind2 || - || || ||
 
|-
 
| gabor || - || || ||
 
|-
 
| imboxfilt || - || || ||
 
|-
 
| imboxfilt3 || - || || ||
 
|-
 
| imfilter || 1.0.5  || || ||
 
|-
 
| imgaborfilt || -  || || ||
 
|-
 
| imgaussfilt || -  || || ||
 
|-
 
| imgaussfilt3 ||  - || || ||
 
|-
 
| imguidedfilter ||  - || || ||
 
|-
 
| imsmooth|| 1.0.5 || || || Octave only
 
|-
 
| integralBoxFilter ||  - || || ||
 
|-
 
| integralBoxFilter3 ||- || || ||
 
|-
 
| integralImage ||- || {{patch|9606}} || [http://kyamagu.github.io/mexopencv/matlab/integral.html cv.integral] from [https://github.com/kyamagu/mexopencv mexopencv] ||
 
|-
 
| integralImage3 || -  || || ||
 
|-
 
| medfilt2 || < 1.0.0  || || ||
 
|-
 
| medfilt3 || - || || ||
 
|-
 
| nlfilter || < 1.0.0 || || ||
 
|-
 
| normxcorr2 || 2.0.0 ||  {{bug|50151}} || ||
 
|-
 
| ordfilt2 || 1.0.9 ||  || ||
 
|-
 
| padarray || < 1.0.0 || || ||
 
|-
 
| rangefilt || 1.0.9 || {{bug|45088}} || ||
 
|-
 
| stdfilt ||  1.0.9 ||  || ||
 
|-
 
| wiener2 ||  2.8.0|| || ||
 
|-
 
|}
 
 
 
=== Image Arithmetic ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives || Notes
 
|-
 
| imabsdiff || 2.0.0  || || ||
 
|-
 
| imadd         || 2.0.0  || || ||
 
|-
 
| imapplymatrix ||    -    || {{patch|9717}} || ||
 
|-
 
| imcomplement || 1.0.6  || || ||
 
|-
 
| imdivide || 2.0.0  || || ||
 
|-
 
| imlincomb || 2.0.0  || || ||
 
|-
 
|  immultiply || 2.0.0  || || ||
 
|-
 
| imsubtract    || 2.0.0  || || ||
 
|-
 
|}
 
 
 
=== Morphological Operations ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives || Notes
 
|-
 
| applylut  ||  < 1.0.0    || || ||
 
|-
 
| bwareaopen ||  2.2.0      || || ||
 
|-
 
|  bwhitmiss ||  < 1.0.0      || || ||
 
|-
 
|  bwlookup ||    --  || || ||
 
|-
 
|  bwmorph || < 1.0.0        ||  {{bug|51884}} || ||
 
|-
 
|  bwulterode ||  --    || || ||
 
|-
 
| conndef  ||    < 1.0.0    || || ||
 
|-
 
|  imbothat ||  2.0.0    || || ||
 
|-
 
| imclearborder ||  2.4.0      || || ||
 
|-
 
| imclose ||  < 1.0.0      || || ||
 
|-
 
|  imdilate ||  < 1.0.0    || || ||
 
|-
 
|  imerode ||  < 1.0.0      || || ||
 
|-
 
| imextendedmax ||    2.8.0 ||  || ||
 
|-
 
|  imextendedmin ||    2.8.0 ||  || ||
 
|-
 
| imfill ||  2.6.0      || || ||
 
|-
 
| imhmax ||    2.8.0 ||  || ||
 
|-
 
| imhmin ||    2.8.0 ||  || ||
 
|-
 
|  imimposemin ||    2.8.0 ||  || ||
 
|-
 
|  imopen ||  < 1.0.0      || || ||
 
|-
 
| imreconstruct ||  2.4.0      || || ||
 
|-
 
| imregionalmax ||  2.4.0      || || ||
 
|-
 
| imregionalmin ||  2.4.0    || || ||
 
|-
 
| imtophat ||  < 1.0.0    || || ||
 
|-
 
| iptcheckconn ||  2.0.0      || || ||
 
|-
 
| offsetstrel ||    --  || || ||
 
|-
 
| strel ||    2.2.0    || {{bug|50732}} || ||
 
|-
 
| watershed ||  2.6.0    || || ||
 
|-
 
|}
 
 
 
=== Image Transforms ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives || Notes
 
|-
 
| dct2 ||  || || ||
 
|-
 
| dctmtx ||  || || ||
 
|-
 
| fanbeam ||  || || ||
 
|-
 
| fan2para ||  || || ||
 
|-
 
| fftshift||  || || ||
 
|-
 
| fft2  ||  || || ||
 
|-
 
| hough ||  || || ||
 
|-
 
| houghlines ||  || || ||
 
|-
 
| houghpeaks ||  || || ||
 
|-
 
|idct2 ||  || || ||
 
|-
 
|ifftshift||  || || ||
 
|-
 
|ifft2||  || || ||
 
|-
 
|iradon||  || || ||
 
|-
 
|para2fan||  || || ||
 
|-
 
|radon||  || || ||
 
|-
 
|}
 
 
 
=== Graphical Interface Interaction ===
 
 
 
{| class="wikitable" style="text-align: center"
 
|-
 
! Function !! Octave Package Version !! Related Bugs and Patches !! Alternatives || Notes
 
|-
 
| imellipse ||  -  || || ||
 
|-
 
| imfreehand ||  -  || || ||
 
|-
 
| imline ||  -  || || ||
 
|-
 
| immagbox ||  -  || || ||
 
|-
 
| imoverview ||  -  || || ||
 
|-
 
| imoverviewpanel ||  -  || || ||
 
|-
 
| impixelinfo ||  -  || {{patch|8722}} || ||
 
|-
 
| impixelinfoval ||  -  || {{patch|8722}} || ||
 
|-
 
| impixelregion ||  -  || || ||
 
|-
 
| impixelregionpanel ||  -  || || ||
 
|-
 
| implay ||  -  || || ||
 
|-
 
| impoint ||  -  || || ||
 
|-
 
| impoly ||  -  || || ||
 
|-
 
| imrect ||  -  || || ||
 
|-
 
| imscrollpanel ||  -  || || ||
 
|-
 
| iptgetpref ||  -  || || ||
 
|-
 
| iptprefs ||  -  || || ||
 
|-
 
| iptsetpref ||  -  || || ||
 
|-
 
|}
 
* Obs: implay, iptgetpref, iptprefs, iptsetpref functions are on Basic Display section too...
 
 
 
[[Category:Octave Forge]]
 
[[Category:Missing functions]]
 

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