PGM — Portable Graymap source ICO — Icon File BMP — Windows Bitmap PNG — Portable Network Graphics imread JPEG 2000 (JP2, JPX) imread source PCX — Windows Paintbrush imread source source imread PBM — Portable Bitmap CUR — Cursor File imread RAS — Sun Raster HDF4 — Hierarchical Data Format JPEG (JPG) http://www.mathworks.com/help/matlab/ref/imread.html PPM — Portable Pixmap source XWD — X Window Dump source source TIFF (TIF) GIF — Graphics Interchange Format