image >> Image processing
Display
 image 
 imagesc 
 imshow 
 rgbplot
Read/write
 imread 
 imwrite 
 imfinfo
 imginfo
 bmpwrite jpgread jpgwrite pngread pngwrite
 readexif
Reshape
 imcrop
 imremap
 imperspectivewarp 
 imresize 
 imrotate
 imrotate_Fourier
 imtranslate
 imshear
 impad
 padarray 
 rotate_scale
Analysis and Statistics
 fftconv2
 corr2 
 imhist 
 mean2 
 std2 
 entropy
 qtdecomp
 qtgetblk
 qtsetblk
 graycomatrix
 houghtf
 hough_line
 hough_circle
 graythresh
 immaximas
Filtering
 imfilter
 colfilt
 fspecial
 imsmooth
 histeq 
 imadjust 
 imnoise 
 medfilt2 
 ordfilt2
 ordfiltn 
 cordflt2
 uintlut
 stretchlim
 makelut applylut
 deriche
 radon
 nonmax_supress
Black and white image functions
 bwarea
 bwdist 
 bweuler 
 bwfill 
 bwlabel 
 bwmorph 
 bwperim 
 bwselect 
 dilate 
 erode 
 bwborder edge
 conndef
 bwhitmiss
Morhophological Operations
 imerode
 imdilate
 imopen
 imclose
 imtophat
Colour controls
 cmpermute 
 cmunique 
 imapprox 
 rgb2ycbcr 
 ycbcr2rgb 
Representation
 dither 
 gray2ind 
 grayslice 
 im2bw 
 im2double
 im2uint8
 im2uint16
 ind2gray 
 ind2rgb 
 isbw 
 isgray 
 isind 
 isrgb 
 mat2gray 
 rgb2gray 
 rgb2ind 
 label2rgb
 imcomplement
Colour maps
 flag 
 lines 
 colorcube 
 vga 
 contrast 
 colorgradient
Region-based and block processing
 roicolor
 roifill
 roifilt2
 roipoly
 poly2mask
 bestblk
 blkproc
 nlfilter
 im2col
 col2im
 rangefilt
 stdfilt
 entropyfilt