bmpread Read a BMP (Microsoft Windows Bitmap) file from disk. bmpwrite Write a BMP (Microsoft Windows Bitmap) file to disk. gifread Read a GIF (Graphics Interchange Format) file from disk. gifwrite Write a GIF (Graphics Interchange Fromat) file to disk. hdfpeek List object tag/ref pairs in HDF file. hdfread Read data from HDF file. hdfwrite Write data to HDF file. pcxread Read a PCX (ZSoft Paint Format) file from disk. pcxwrite Write a PCX (ZSoft Paint Format) file to disk. tiffread Read a TIFF (Tagged Image File Format) file from disk. tiffwrite Write a TIFF (Tagged Image File Format) file to disk. xwdread Read a XWD (X window dump) file from disk. xwdwrite Write a XWD (X window dump) file to disk.In addition to these functions, MATLAB has two functions for reading and writing "raw" image files. They are:
imread Read from a "raw" image file imwrite Write a "raw" image fileThe "raw" image format is the format used by a program called Image Alchemy. Image Alchemy is produced by a company named Handmade Software, Inc. This program allows one to convert to and from many different formats, including TARGA, ADEX, FOP, EPS, GIF, Gem VDI, ILBM, Vivid IMG, JPEG, HP RTL, PBM, Stork, PALette, AutoLogic, Macintosh PICT, MTV, SGI, QDV, PCX, PCL, HSI Raw, Erdas Image, Sun RASter, Grasp, TIFF, QRT Raw, Utah RLE, Windows BMP, and WPG.
Handmade Software, Inc. 15951 Los Gatos Blvd., Suite 7 Los Gatos, CA 95032 1-408-358-1292 Phone 1-408-358-2694 FAX 1-408-356-3297 BBS Internet: hsi@netcom.COM CompuServe: 71330,3136 EXAMPLE:
load clown imwrite(X,map,'filename.raw') % Convert it to GIF !alchemy -g filename.raw filename.gif % Convert from GIF to RAW format !alchemy -r filename.gif filename2.raw % Read it back into MATLAB and display clear [X,map] = imread('filename2.raw'); image(X) colormap(map)
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