help HELP topics: matlab\work - (No table of contents file) matlab\toolbox_calib - (No table of contents file) matlab\general - General purpose commands. matlab\ops - Operators and special characters. matlab\lang - Programming language constructs. matlab\elmat - Elementary matrices and matrix manipulation. matlab\elfun - Elementary math functions. matlab\specfun - Specialized math functions. matlab\matfun - Matrix functions - numerical linear algebra. matlab\datafun - Data analysis and Fourier transforms. matlab\polyfun - Interpolation and polynomials. matlab\funfun - Function functions and ODE solvers. matlab\sparfun - Sparse matrices. matlab\graph2d - Two dimensional graphs. matlab\graph3d - Three dimensional graphs. matlab\specgraph - Specialized graphs. matlab\graphics - Handle Graphics. matlab\uitools - Graphical user interface tools. matlab\strfun - Character strings. matlab\iofun - File input/output. matlab\timefun - Time and dates. matlab\datatypes - Data types and structures. matlab\winfun - Windows Operating System Interface Files (DDE/ActiveX) --more--matlab\demos - Examples and demonstrations. images\images - Image Processing Toolbox. images\imdemos - Image Processing Toolbox --- demos and sample images toolbox\tour - MATLAB Tour toolbox\local - Preferences. matlab\imtools - (No table of contents file) For more help on directory/topic, type "help topic". more on help images Image Processing Toolbox. Version 2.2.1 (R11.1) 27-Jul-1999 Release information. Readme - Display information about versions 2.0, 2.1, and 2.2. Image display. colorbar - Display colorbar (MATLAB Toolbox). getimage - Get image data from axes. image - Create and display image object (MATLAB Toolbox). imagesc - Scale data and display as image (MATLAB Toolbox). immovie - Make movie from multiframe indexed image. imshow - Display image. montage - Display multiple image frames as rectangular montage. subimage - Display multiple images in single figure. truesize - Adjust display size of image. warp - Display image as texture-mapped surface. zoom - Zoom in and out of image or 2-D plot (MATLAB Toolbox). Image file I/O. imfinfo - Return information about image file (MATLAB Toolbox). imread - Read image file (MATLAB Toolbox). imwrite - Write image file (MATLAB Toolbox). Geometric operations. --more-- imcrop - Crop image. --more-- imresize - Resize image. imrotate - Rotate image. interp2 - 2-D data interpolation (MATLAB Toolbox). Pixel values and statistics. corr2 - Compute 2-D correlation coefficient. imcontour - Create contour plot of image data. imfeature - Compute feature measurements for image regions. imhist - Display histogram of image data. impixel - Determine pixel color values. improfile - Compute pixel-value cross-sections along line segments. mean2 - Compute mean of matrix elements. pixval - Display information about image pixels. std2 - Compute standard deviation of matrix elements. Image analysis. edge - Find edges in intensity image. qtdecomp - Perform quadtree decomposition. qtgetblk - Get block values in quadtree decomposition. qtsetblk - Set block values in quadtree decomposition. Image enhancement. histeq - Enhance contrast using histogram equalization. imadjust - Adjust image intensity values or colormap. imnoise - Add noise to an image. medfilt2 - Perform 2-D median filtering. --more-- ordfilt2 - Perform 2-D order-statistic filtering. wiener2 - Perform 2-D adaptive noise-removal filtering. Linear filtering. conv2 - Perform 2-D convolution (MATLAB Toolbox). convmtx2 - Compute 2-D convolution matrix. convn - Perform N-D convolution (MATLAB Toolbox). filter2 - Perform 2-D linear filtering (MATLAB Toolbox). fspecial - Create predefined filters. Linear 2-D filter design. freqspace - Determine 2-D frequency response spacing (MATLAB Toolbox). freqz2 - Compute 2-D frequency response. fsamp2 - Design 2-D FIR filter using frequency sampling. ftrans2 - Design 2-D FIR filter using frequency transformation. fwind1 - Design 2-D FIR filter using 1-D window method. fwind2 - Design 2-D FIR filter using 2-D window method. Image transforms. dct2 - Compute 2-D discrete cosine transform. dctmtx - Compute discrete cosine transform matrix. fft2 - Compute 2-D fast Fourier transform (MATLAB Toolbox). fftn - Compute N-D fast Fourier transform (MATLAB Toolbox). fftshift - Reverse quadrants of output of FFT (MATLAB Toolbox). idct2 - Compute 2-D inverse discrete cosine transform. ifft2 - Compute 2-D inverse fast Fourier transform (MATLAB Toolbox). --more-- ifftn - Compute N-D inverse fast Fourier transform (MATLAB Toolbox). iradon - Compute inverse Radon transform. phantom - Generate a head phantom image. radon - Compute Radon transform. Neighborhood and block processing. bestblk - Choose block size for block processing. blkproc - Implement distinct block processing for image. col2im - Rearrange matrix columns into blocks. colfilt - Perform neighborhood operations using columnwise functions. im2col - Rearrange image blocks into columns. nlfilter - Perform general sliding-neighborhood operations. Binary image operations. applylut - Perform neighborhood operations using lookup tables. bwarea - Compute area of objects in binary image. bweuler - Compute Euler number of binary image. bwfill - Fill background regions in binary image. bwlabel - Label connected components in binary image. bwmorph - Perform morphological operations on binary image. bwperim - Determine perimeter of objects in binary image. bwselect - Select objects in binary image. dilate - Perform dilation on binary image. erode - Perform erosion on binary image. makelut - Construct lookup table for use with applylut. --more-- Region-based processing. roicolor - Select region of interest, based on color. roifill - Smoothly interpolate within arbitrary region. roifilt2 - Filter a region of interest. roipoly - Select polygonal region of interest. Colormap manipulation. brighten - Brighten or darken colormap (MATLAB Toolbox). cmpermute - Rearrange colors in colormap. cmunique - Find unique colormap colors and corresponding image. colormap - Set or get color lookup table (MATLAB Toolbox). imapprox - Approximate indexed image by one with fewer colors. rgbplot - Plot RGB colormap components (MATLAB Toolbox). Color space conversions. hsv2rgb - Convert HSV values to RGB color space (MATLAB Toolbox). ntsc2rgb - Convert NTSC values to RGB color space. rgb2hsv - Convert RGB values to HSV color space (MATLAB Toolbox). rgb2ntsc - Convert RGB values to NTSC color space. rgb2ycbcr - Convert RGB values to YCBCR color space. ycbcr2rgb - Convert YCBCR values to RGB color space. Image types and type conversions. dither - Convert image using dithering. gray2ind - Convert intensity image to indexed image. grayslice - Create indexed image from intensity image by thresholding. --more-- im2bw - Convert image to binary image by thresholding. im2double - Convert image array to double precision. im2uint8 - Convert image array to 8-bit unsigned integers. im2uint16 - Convert image array to 16-bit unsigned integers. ind2gray - Convert indexed image to intensity image. ind2rgb - Convert indexed image to RGB image (MATLAB Toolbox). isbw - Return true for binary image. isgray - Return true for intensity image. isind - Return true for indexed image. isrgb - Return true for RGB image. mat2gray - Convert matrix to intensity image. rgb2gray - Convert RGB image or colormap to grayscale. rgb2ind - Convert RGB image to indexed image. Toolbox preferences. iptgetpref - Get value of Image Processing Toolbox preference. iptsetpref - Set value of Image Processing Toolbox preference. Demos. dctdemo - 2-D DCT image compression demo. edgedemo - Edge detection demo. firdemo - 2-D FIR filtering and filter design demo. imadjdemo - Intensity adjustment and histogram equalization demo. nrfiltdemo - Noise reduction filtering demo. qtdemo - Quadtree decomposition demo. roidemo - Region-of-interest processing demo. --more-- --more--help images Image Processing Toolbox. Version 2.2.1 (R11.1) 27-Jul-1999 Release information. Readme - Display information about versions 2.0, 2.1, and 2.2. Image display. colorbar - Display colorbar (MATLAB Toolbox). getimage - Get image data from axes. image - Create and display image object (MATLAB Toolbox). imagesc - Scale data and display as image (MATLAB Toolbox). immovie - Make movie from multiframe indexed image. imshow - Display image. montage - Display multiple image frames as rectangular montage. subimage - Display multiple images in single figure. truesize - Adjust display size of image. warp - Display image as texture-mapped surface. zoom - Zoom in and out of image or 2-D plot (MATLAB Toolbox). Image file I/O. imfinfo - Return information about image file (MATLAB Toolbox). imread - Read image file (MATLAB Toolbox). imwrite - Write image file (MATLAB Toolbox). Geometric operations. --more-- imcrop - Crop image. imresize - Resize image. imrotate - Rotate image. interp2 - 2-D data interpolation (MATLAB Toolbox). Pixel values and statistics. corr2 - Compute 2-D correlation coefficient. imcontour - Create contour plot of image data. imfeature - Compute feature measurements for image regions. imhist - Display histogram of image data. impixel - Determine pixel color values. improfile - Compute pixel-value cross-sections along line segments. mean2 - Compute mean of matrix elements. pixval - Display information about image pixels. std2 - Compute standard deviation of matrix elements. Image analysis. edge - Find edges in intensity image. qtdecomp - Perform quadtree decomposition. qtgetblk - Get block values in quadtree decomposition. qtsetblk - Set block values in quadtree decomposition. Image enhancement. histeq - Enhance contrast using histogram equalization. imadjust - Adjust image intensity values or colormap. imnoise - Add noise to an image. --more-- medfilt2 - Perform 2-D median filtering. ordfilt2 - Perform 2-D order-statistic filtering. wiener2 - Perform 2-D adaptive noise-removal filtering. Linear filtering. conv2 - Perform 2-D convolution (MATLAB Toolbox). convmtx2 - Compute 2-D convolution matrix. convn - Perform N-D convolution (MATLAB Toolbox). filter2 - Perform 2-D linear filtering (MATLAB Toolbox). fspecial - Create predefined filters. Linear 2-D filter design. freqspace - Determine 2-D frequency response spacing (MATLAB Toolbox). freqz2 - Compute 2-D frequency response. fsamp2 - Design 2-D FIR filter using frequency sampling. ftrans2 - Design 2-D FIR filter using frequency transformation. fwind1 - Design 2-D FIR filter using 1-D window method. fwind2 - Design 2-D FIR filter using 2-D window method. Image transforms. dct2 - Compute 2-D discrete cosine transform. dctmtx - Compute discrete cosine transform matrix. fft2 - Compute 2-D fast Fourier transform (MATLAB Toolbox). fftn - Compute N-D fast Fourier transform (MATLAB Toolbox). fftshift - Reverse quadrants of output of FFT (MATLAB Toolbox). idct2 - Compute 2-D inverse discrete cosine transform. --more-- ifft2 - Compute 2-D inverse fast Fourier transform (MATLAB Toolbox). ifftn - Compute N-D inverse fast Fourier transform (MATLAB Toolbox). iradon - Compute inverse Radon transform. phantom - Generate a head phantom image. radon - Compute Radon transform. Neighborhood and block processing. bestblk - Choose block size for block processing. blkproc - Implement distinct block processing for image. col2im - Rearrange matrix columns into blocks. colfilt - Perform neighborhood operations using columnwise functions. im2col - Rearrange image blocks into columns. nlfilter - Perform general sliding-neighborhood operations. Binary image operations. applylut - Perform neighborhood operations using lookup tables. bwarea - Compute area of objects in binary image. bweuler - Compute Euler number of binary image. bwfill - Fill background regions in binary image. bwlabel - Label connected components in binary image. bwmorph - Perform morphological operations on binary image. bwperim - Determine perimeter of objects in binary image. bwselect - Select objects in binary image. dilate - Perform dilation on binary image. erode - Perform erosion on binary image. makelut - Construct lookup table for use with applylut. --more-- Region-based processing. roicolor - Select region of interest, based on color. roifill - Smoothly interpolate within arbitrary region. roifilt2 - Filter a region of interest. roipoly - Select polygonal region of interest. Colormap manipulation. brighten - Brighten or darken colormap (MATLAB Toolbox). cmpermute - Rearrange colors in colormap. cmunique - Find unique colormap colors and corresponding image. colormap - Set or get color lookup table (MATLAB Toolbox). imapprox - Approximate indexed image by one with fewer colors. rgbplot - Plot RGB colormap components (MATLAB Toolbox). Color space conversions. hsv2rgb - Convert HSV values to RGB color space (MATLAB Toolbox). ntsc2rgb - Convert NTSC values to RGB color space. rgb2hsv - Convert RGB values to HSV color space (MATLAB Toolbox). rgb2ntsc - Convert RGB values to NTSC color space. rgb2ycbcr - Convert RGB values to YCBCR color space. ycbcr2rgb - Convert YCBCR values to RGB color space. Image types and type conversions. dither - Convert image using dithering. gray2ind - Convert intensity image to indexed image. --more-- grayslice - Create indexed image from intensity image by thresholding. --more-- im2bw - Convert image to binary image by thresholding. im2double - Convert image array to double precision. im2uint8 - Convert image array to 8-bit unsigned integers. im2uint16 - Convert image array to 16-bit unsigned integers. ind2gray - Convert indexed image to intensity image. ind2rgb - Convert indexed image to RGB image (MATLAB Toolbox). isbw - Return true for binary image. isgray - Return true for intensity image. isind - Return true for indexed image. isrgb - Return true for RGB image. mat2gray - Convert matrix to intensity image. rgb2gray - Convert RGB image or colormap to grayscale. rgb2ind - Convert RGB image to indexed image. Toolbox preferences. iptgetpref - Get value of Image Processing Toolbox preference. iptsetpref - Set value of Image Processing Toolbox preference. Demos. dctdemo - 2-D DCT image compression demo. edgedemo - Edge detection demo. firdemo - 2-D FIR filtering and filter design demo. imadjdemo - Intensity adjustment and histogram equalization demo. nrfiltdemo - Noise reduction filtering demo. qtdemo - Quadtree decomposition demo. roidemo - Region-of-interest processing demo. --more-- Slide shows. ipss001 - Region labeling of steel grains. ipss002 - Feature-based logic. ipss003 - Correction of nonuniform illumination. a = [1,2,3] a = 1 2 3 a = [1;2;3] a = 1 2 3 a = [1,2;3,4] a = 1 2 3 4 a = [1,2;3,4]; a(1,2) ans = 2 a(1:2,2) ans = 2 4 big = [1:5]' * [1:5] big = 1 2 3 4 5 2 4 6 8 10 3 6 9 12 15 4 8 12 16 20 5 10 15 20 25 [1:5] ans = 1 2 3 4 5 big(2:3,3:4) ans = 6 8 9 12 big(2:3,3:4) = 1 big = 1 2 3 4 5 2 4 1 1 10 3 6 1 1 15 4 8 12 16 20 5 10 15 20 25 big + big ans = 2 4 6 8 10 4 8 2 2 20 6 12 2 2 30 8 16 24 32 40 10 20 30 40 50 abs(big) ans = 1 2 3 4 5 2 4 1 1 10 3 6 1 1 15 4 8 12 16 20 5 10 15 20 25 sin(big) ans = 0.8415 0.9093 0.1411 -0.7568 -0.9589 0.9093 -0.7568 0.8415 0.8415 -0.5440 0.1411 -0.2794 0.8415 0.8415 0.6503 -0.7568 0.9894 -0.5366 -0.2879 0.9129 -0.9589 -0.5440 0.6503 0.9129 -0.1324 ls . calibdig3 p0000095.jpg .. calibdig4 p0000096.jpg P0000191.JPG calibdig5 p0000097.jpg P0000192.JPG calibdigzhang2.txt p0000098.jpg P0000193.JPG calibdigzhang2d2.txt p0000115.jpg P0000194.JPG calibdigzhang2d3.txt p0000116.jpg P0000195.JPG calibdigzhang2d4.txt p0000117.jpg P0000196.JPG calibdigzhang2d5.txt p0000118.jpg P0000197.JPG calibdigzhang3.txt p0000119.jpg P0000198.JPG calibdigzhang4.txt piccorner.tif P0000199.JPG calibdigzhang5.txt pictureimage.tif assign2image.tif corrimage.tif plot.jpg basisimages.tif data2.mat plotblue.jpg calib1.tif desk.jpg plotnospec.jpg calib2.tif diary shotimage.jpg calib3.tif dog.jpg shotimageconv.jpg calib4.tif fftpdog.jpg shotmedian.jpg calib5.tif montage1.tif stereo data calib_data.mat montage2.tif stereodata.tgz calib_rect1.tif motion1.tif surfaces.tif calib_rect2.tif motion2.tif testimage1.tif calib_rect3.tif motion3.tif testimage2.tif calib_rect4.tif motion4.tif testimage3.tif calib_rect5.tif p0000092.jpg threshcor.tif calib_results.mat p0000093.jpg thumbs.db --more--calibdig2 p0000094.jpg picture = imread('pictureimage.tif'); size(picture) ans = 316 411 picture(1,1) ans = 83 imshow(picture) help images Image Processing Toolbox. Version 2.2.1 (R11.1) 27-Jul-1999 Release information. Readme - Display information about versions 2.0, 2.1, and 2.2. Image display. colorbar - Display colorbar (MATLAB Toolbox). getimage - Get image data from axes. image - Create and display image object (MATLAB Toolbox). imagesc - Scale data and display as image (MATLAB Toolbox). immovie - Make movie from multiframe indexed image. imshow - Display image. montage - Display multiple image frames as rectangular montage. subimage - Display multiple images in single figure. truesize - Adjust display size of image. warp - Display image as texture-mapped surface. zoom - Zoom in and out of image or 2-D plot (MATLAB Toolbox). Image file I/O. imfinfo - Return information about image file (MATLAB Toolbox). imread - Read image file (MATLAB Toolbox). imwrite - Write image file (MATLAB Toolbox). Geometric operations. --more-- imcrop - Crop image. imresize - Resize image. imrotate - Rotate image. interp2 - 2-D data interpolation (MATLAB Toolbox). Pixel values and statistics. corr2 - Compute 2-D correlation coefficient. imcontour - Create contour plot of image data. imfeature - Compute feature measurements for image regions. imhist - Display histogram of image data. impixel - Determine pixel color values. improfile - Compute pixel-value cross-sections along line segments. mean2 - Compute mean of matrix elements. pixval - Display information about image pixels. std2 - Compute standard deviation of matrix elements. Image analysis. edge - Find edges in intensity image. qtdecomp - Perform quadtree decomposition. qtgetblk - Get block values in quadtree decomposition. qtsetblk - Set block values in quadtree decomposition. Image enhancement. histeq - Enhance contrast using histogram equalization. imadjust - Adjust image intensity values or colormap. imnoise - Add noise to an image. --more-- medfilt2 - Perform 2-D median filtering. ordfilt2 - Perform 2-D order-statistic filtering. wiener2 - Perform 2-D adaptive noise-removal filtering. Linear filtering. conv2 - Perform 2-D convolution (MATLAB Toolbox). convmtx2 - Compute 2-D convolution matrix. convn - Perform N-D convolution (MATLAB Toolbox). filter2 - Perform 2-D linear filtering (MATLAB Toolbox). fspecial - Create predefined filters. Linear 2-D filter design. freqspace - Determine 2-D frequency response spacing (MATLAB Toolbox). freqz2 - Compute 2-D frequency response. fsamp2 - Design 2-D FIR filter using frequency sampling. ftrans2 - Design 2-D FIR filter using frequency transformation. fwind1 - Design 2-D FIR filter using 1-D window method. fwind2 - Design 2-D FIR filter using 2-D window method. Image transforms. dct2 - Compute 2-D discrete cosine transform. dctmtx - Compute discrete cosine transform matrix. fft2 - Compute 2-D fast Fourier transform (MATLAB Toolbox). fftn - Compute N-D fast Fourier transform (MATLAB Toolbox). fftshift - Reverse quadrants of output of FFT (MATLAB Toolbox). idct2 - Compute 2-D inverse discrete cosine transform. --more-- ifft2 - Compute 2-D inverse fast Fourier transform (MATLAB Toolbox). ifftn - Compute N-D inverse fast Fourier transform (MATLAB Toolbox). iradon - Compute inverse Radon transform. phantom - Generate a head phantom image. radon - Compute Radon transform. Neighborhood and block processing. bestblk - Choose block size for block processing. blkproc - Implement distinct block processing for image. col2im - Rearrange matrix columns into blocks. colfilt - Perform neighborhood operations using columnwise functions. im2col - Rearrange image blocks into columns. nlfilter - Perform general sliding-neighborhood operations. Binary image operations. applylut - Perform neighborhood operations using lookup tables. bwarea - Compute area of objects in binary image. bweuler - Compute Euler number of binary image. bwfill - Fill background regions in binary image. bwlabel - Label connected components in binary image. bwmorph - Perform morphological operations on binary image. bwperim - Determine perimeter of objects in binary image. bwselect - Select objects in binary image. dilate - Perform dilation on binary image. erode - Perform erosion on binary image. makelut - Construct lookup table for use with applylut. --more-- Region-based processing. roicolor - Select region of interest, based on color. roifill - Smoothly interpolate within arbitrary region. roifilt2 - Filter a region of interest. roipoly - Select polygonal region of interest. Colormap manipulation. brighten - Brighten or darken colormap (MATLAB Toolbox). cmpermute - Rearrange colors in colormap. cmunique - Find unique colormap colors and corresponding image. colormap - Set or get color lookup table (MATLAB Toolbox). imapprox - Approximate indexed image by one with fewer colors. rgbplot - Plot RGB colormap components (MATLAB Toolbox). Color space conversions. hsv2rgb - Convert HSV values to RGB color space (MATLAB Toolbox). ntsc2rgb - Convert NTSC values to RGB color space. rgb2hsv - Convert RGB values to HSV color space (MATLAB Toolbox). rgb2ntsc - Convert RGB values to NTSC color space. rgb2ycbcr - Convert RGB values to YCBCR color space. ycbcr2rgb - Convert YCBCR values to RGB color space. Image types and type conversions. dither - Convert image using dithering. gray2ind - Convert intensity image to indexed image. --more-- grayslice - Create indexed image from intensity image by thresholding. --more-- im2bw - Convert image to binary image by thresholding. --more-- im2double - Convert image array to double precision. --more-- im2uint8 - Convert image array to 8-bit unsigned integers. --more-- im2uint16 - Convert image array to 16-bit unsigned integers. --more-- ind2gray - Convert indexed image to intensity image. --more-- ind2rgb - Convert indexed image to RGB image (MATLAB Toolbox). --more-- isbw - Return true for binary image. --more-- isgray - Return true for intensity image. --more-- isind - Return true for indexed image. --more-- isrgb - Return true for RGB image. --more-- mat2gray - Convert matrix to intensity image. --more-- rgb2gray - Convert RGB image or colormap to grayscale. --more-- rgb2ind - Convert RGB image to indexed image. --more-- --more-- Toolbox preferences. --more-- iptgetpref - Get value of Image Processing Toolbox preference. --more-- iptsetpref - Set value of Image Processing Toolbox preference. --more-- --more-- Demos. --more-- dctdemo - 2-D DCT image compression demo. --more-- edgedemo - Edge detection demo. --more-- firdemo - 2-D FIR filtering and filter design demo. --more-- imadjdemo - Intensity adjustment and histogram equalization demo. --more-- nrfiltdemo - Noise reduction filtering demo. --more-- qtdemo - Quadtree decomposition demo. --more-- roidemo - Region-of-interest processing demo. --more-- --more-- Slide shows. --more-- ipss001 - Region labeling of steel grains. --more-- ipss002 - Feature-based logic. --more-- ipss003 - Correction of nonuniform illumination. --more-- --more-- picturedouble = double(picture/255); ??? Error using ==> / Function '/' not defined for variables of class 'uint8'. picturedouble = double(picture)/255.0; imshow(picturedouble); ls . calibdig3 p0000095.jpg .. calibdig4 p0000096.jpg P0000191.JPG calibdig5 p0000097.jpg P0000192.JPG calibdigzhang2.txt p0000098.jpg P0000193.JPG calibdigzhang2d2.txt p0000115.jpg P0000194.JPG calibdigzhang2d3.txt p0000116.jpg P0000195.JPG calibdigzhang2d4.txt p0000117.jpg P0000196.JPG calibdigzhang2d5.txt p0000118.jpg P0000197.JPG calibdigzhang3.txt p0000119.jpg P0000198.JPG calibdigzhang4.txt piccorner.tif P0000199.JPG calibdigzhang5.txt pictureimage.tif assign2image.tif corrimage.tif plot.jpg basisimages.tif data2.mat plotblue.jpg calib1.tif desk.jpg plotnospec.jpg calib2.tif diary shotimage.jpg calib3.tif dog.jpg shotimageconv.jpg calib4.tif fftpdog.jpg shotmedian.jpg calib5.tif montage1.tif stereo data calib_data.mat montage2.tif stereodata.tgz calib_rect1.tif motion1.tif surfaces.tif calib_rect2.tif motion2.tif testimage1.tif calib_rect3.tif motion3.tif testimage2.tif calib_rect4.tif motion4.tif testimage3.tif calib_rect5.tif p0000092.jpg threshcor.tif calib_results.mat p0000093.jpg thumbs.db --more--calibdig2 p0000094.jpg desk = imload('desk.jpg'); ??? Undefined function or variable 'imload'. desk = imread('desk.jpg'); size(desk) ans = 1200 1792 3 desk(1,1,1) ans = 130 desk(1,1,2) ans = 110 desk(1,1,3) ans = 85 reddesk = (:,:,1); ??? reddesk = (: | Missing variable or function. reddesk = desk(:,:,1); size(reddesk) ans = 1200 1792 imshow(reddesk); Warning: Image is too big to fit on screen; displaying at 56% scale. > In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m (Resize1) at line 310 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m at line 42 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\imshow.m at line 167 imshow(desk); Warning: Image is too big to fit on screen; displaying at 56% scale. > In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m (Resize1) at line 310 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m at line 42 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\imshow.m at line 167 imshow(reddesk); Warning: Image is too big to fit on screen; displaying at 56% scale. > In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m (Resize1) at line 310 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m at line 42 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\imshow.m at line 167 imshow(desk(:,:,3)); Warning: Image is too big to fit on screen; displaying at 56% scale. > In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m (Resize1) at line 310 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m at line 42 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\imshow.m at line 167 help images Image Processing Toolbox. Version 2.2.1 (R11.1) 27-Jul-1999 Release information. Readme - Display information about versions 2.0, 2.1, and 2.2. Image display. colorbar - Display colorbar (MATLAB Toolbox). getimage - Get image data from axes. image - Create and display image object (MATLAB Toolbox). imagesc - Scale data and display as image (MATLAB Toolbox). immovie - Make movie from multiframe indexed image. imshow - Display image. montage - Display multiple image frames as rectangular montage. subimage - Display multiple images in single figure. truesize - Adjust display size of image. warp - Display image as texture-mapped surface. zoom - Zoom in and out of image or 2-D plot (MATLAB Toolbox). Image file I/O. imfinfo - Return information about image file (MATLAB Toolbox). imread - Read image file (MATLAB Toolbox). imwrite - Write image file (MATLAB Toolbox). Geometric operations. --more-- imcrop - Crop image. imresize - Resize image. imrotate - Rotate image. interp2 - 2-D data interpolation (MATLAB Toolbox). Pixel values and statistics. corr2 - Compute 2-D correlation coefficient. imcontour - Create contour plot of image data. imfeature - Compute feature measurements for image regions. imhist - Display histogram of image data. impixel - Determine pixel color values. improfile - Compute pixel-value cross-sections along line segments. mean2 - Compute mean of matrix elements. pixval - Display information about image pixels. std2 - Compute standard deviation of matrix elements. Image analysis. edge - Find edges in intensity image. qtdecomp - Perform quadtree decomposition. qtgetblk - Get block values in quadtree decomposition. qtsetblk - Set block values in quadtree decomposition. Image enhancement. histeq - Enhance contrast using histogram equalization. imadjust - Adjust image intensity values or colormap. imnoise - Add noise to an image. --more-- medfilt2 - Perform 2-D median filtering. ordfilt2 - Perform 2-D order-statistic filtering. wiener2 - Perform 2-D adaptive noise-removal filtering. Linear filtering. conv2 - Perform 2-D convolution (MATLAB Toolbox). convmtx2 - Compute 2-D convolution matrix. convn - Perform N-D convolution (MATLAB Toolbox). filter2 - Perform 2-D linear filtering (MATLAB Toolbox). fspecial - Create predefined filters. Linear 2-D filter design. freqspace - Determine 2-D frequency response spacing (MATLAB Toolbox). freqz2 - Compute 2-D frequency response. fsamp2 - Design 2-D FIR filter using frequency sampling. ftrans2 - Design 2-D FIR filter using frequency transformation. fwind1 - Design 2-D FIR filter using 1-D window method. fwind2 - Design 2-D FIR filter using 2-D window method. Image transforms. dct2 - Compute 2-D discrete cosine transform. dctmtx - Compute discrete cosine transform matrix. fft2 - Compute 2-D fast Fourier transform (MATLAB Toolbox). fftn - Compute N-D fast Fourier transform (MATLAB Toolbox). fftshift - Reverse quadrants of output of FFT (MATLAB Toolbox). idct2 - Compute 2-D inverse discrete cosine transform. --more-- ifft2 - Compute 2-D inverse fast Fourier transform (MATLAB Toolbox). ifftn - Compute N-D inverse fast Fourier transform (MATLAB Toolbox). iradon - Compute inverse Radon transform. phantom - Generate a head phantom image. radon - Compute Radon transform. Neighborhood and block processing. bestblk - Choose block size for block processing. blkproc - Implement distinct block processing for image. col2im - Rearrange matrix columns into blocks. colfilt - Perform neighborhood operations using columnwise functions. im2col - Rearrange image blocks into columns. nlfilter - Perform general sliding-neighborhood operations. Binary image operations. applylut - Perform neighborhood operations using lookup tables. bwarea - Compute area of objects in binary image. bweuler - Compute Euler number of binary image. bwfill - Fill background regions in binary image. bwlabel - Label connected components in binary image. bwmorph - Perform morphological operations on binary image. bwperim - Determine perimeter of objects in binary image. bwselect - Select objects in binary image. dilate - Perform dilation on binary image. erode - Perform erosion on binary image. makelut - Construct lookup table for use with applylut. --more-- Region-based processing. roicolor - Select region of interest, based on color. roifill - Smoothly interpolate within arbitrary region. roifilt2 - Filter a region of interest. roipoly - Select polygonal region of interest. Colormap manipulation. brighten - Brighten or darken colormap (MATLAB Toolbox). cmpermute - Rearrange colors in colormap. cmunique - Find unique colormap colors and corresponding image. colormap - Set or get color lookup table (MATLAB Toolbox). imapprox - Approximate indexed image by one with fewer colors. rgbplot - Plot RGB colormap components (MATLAB Toolbox). Color space conversions. hsv2rgb - Convert HSV values to RGB color space (MATLAB Toolbox). ntsc2rgb - Convert NTSC values to RGB color space. rgb2hsv - Convert RGB values to HSV color space (MATLAB Toolbox). rgb2ntsc - Convert RGB values to NTSC color space. rgb2ycbcr - Convert RGB values to YCBCR color space. ycbcr2rgb - Convert YCBCR values to RGB color space. Image types and type conversions. dither - Convert image using dithering. gray2ind - Convert intensity image to indexed image. --more-- grayslice - Create indexed image from intensity image by thresholding. im2bw - Convert image to binary image by thresholding. im2double - Convert image array to double precision. im2uint8 - Convert image array to 8-bit unsigned integers. im2uint16 - Convert image array to 16-bit unsigned integers. ind2gray - Convert indexed image to intensity image. ind2rgb - Convert indexed image to RGB image (MATLAB Toolbox). isbw - Return true for binary image. isgray - Return true for intensity image. isind - Return true for indexed image. isrgb - Return true for RGB image. mat2gray - Convert matrix to intensity image. rgb2gray - Convert RGB image or colormap to grayscale. rgb2ind - Convert RGB image to indexed image. Toolbox preferences. iptgetpref - Get value of Image Processing Toolbox preference. iptsetpref - Set value of Image Processing Toolbox preference. Demos. dctdemo - 2-D DCT image compression demo. edgedemo - Edge detection demo. firdemo - 2-D FIR filtering and filter design demo. imadjdemo - Intensity adjustment and histogram equalization demo. nrfiltdemo - Noise reduction filtering demo. qtdemo - Quadtree decomposition demo. --more-- roidemo - Region-of-interest processing demo. --more-- --more-- Slide shows. --more-- ipss001 - Region labeling of steel grains. --more-- ipss002 - Feature-based logic. --more-- ipss003 - Correction of nonuniform illumination. --more-- --more-- ntscim = rgb2ntsc(desk); imshow(ntscim(:,:,1)); Warning: Image is too big to fit on screen; displaying at 56% scale. > In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m (Resize1) at line 310 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m at line 42 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\imshow.m at line 167 imshow(ntscim(:,:,2)); Warning: Image is too big to fit on screen; displaying at 56% scale. > In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m (Resize1) at line 310 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m at line 42 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\imshow.m at line 167 imshow(ntscim(:,:,3)); Warning: Image is too big to fit on screen; displaying at 56% scale. > In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m (Resize1) at line 310 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m at line 42 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\imshow.m at line 167 ntscim(10:20,10:20,2) ans = Columns 1 through 7 0.0889 0.0889 0.0889 0.0864 0.0864 0.0864 0.0889 0.0831 0.0831 0.0831 0.0831 0.0831 0.0889 0.0889 0.0808 0.0831 0.0831 0.0831 0.0831 0.0889 0.0831 0.0750 0.0808 0.0808 0.0831 0.0831 0.0831 0.0831 0.0750 0.0808 0.0808 0.0831 0.0831 0.0831 0.0856 0.0716 0.0750 0.0750 0.0822 0.0822 0.0856 0.0856 0.0750 0.0750 0.0750 0.0822 0.0822 0.0856 0.0848 0.0783 0.0808 0.0808 0.0822 0.0848 0.0848 0.0848 0.0783 0.0808 0.0822 0.0848 0.0848 0.0860 0.0860 0.0783 0.0808 0.0822 0.0848 0.0848 0.0860 0.0860 0.0808 0.0822 0.0822 0.0848 0.0848 0.0848 0.0848 Columns 8 through 11 0.0914 0.0914 0.0914 0.0914 0.0856 0.0856 0.0831 0.0831 0.0856 0.0856 0.0831 0.0831 0.0856 0.0822 0.0822 0.0822 0.0822 0.0848 0.0822 0.0822 0.0848 0.0803 0.0790 0.0790 0.0790 0.0790 0.0790 0.0790 0.0790 0.0776 0.0776 0.0776 0.0776 0.0776 0.0750 0.0750 0.0776 0.0776 0.0750 0.0750 0.0776 0.0776 0.0750 0.0750 imshow(histeq(ntscim(:,:,1))); Warning: Image is too big to fit on screen; displaying at 56% scale. > In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m (Resize1) at line 310 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\truesize.m at line 42 In C:\OTHERPROGRAMS\matlab\toolbox\images\images\imshow.m at line 167 diary off