pgm文件怎么看，pgm文件怎么打开？
.pgm
文件类型：Portable Gray Map Image
扩展名为.pgm的文件是一个Raster 图像文件。文件说明：
Grayscale image file encoded with either one or two bytes (8 or 16 bits) per pixel; contains header information and a grid of numbers that represent different shades of gray from black (0) to white (up to 65,536); typically stored in ASCII text format, but also has a binary representation.PGM files include a header that defines the PGM format type (P2 for text or P5 for binary), image width and height, and the maximum number of shades; while binary PGM files may contain multiple images, ASCII PGM files may only include one image.
PGM files may also be called portable greymap files..pgm
打开.pgm文件
Mac OS
NetpbmAdobe Photoshop CS5 with CartaPGM plug-in
Editable with a text editor
Windows
NetpbmCorel PaintShop Photo Pro X3
Adobe Photoshop CS5 with CartaPGM plug-in
ACDSee Photo Manager 2009
Editable with a text editor
Linux
NetpbmEditable with a text editor
其它内容
来源：.pgm文件
