pgm文件扩展名，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

Netpbm

Adobe Photoshop CS5   with CartaPGM plug-in

Editable with a text editor

　

Windows

Netpbm

Corel PaintShop Photo Pro X3  

Adobe Photoshop CS5   with CartaPGM plug-in

ACDSee Photo Manager 2009

Editable with a text editor

　

Linux

Netpbm

Editable with a text editor

其它内容

来源：. pgm文件