The imghdr Module

The imghdr module identifies different image file formats. The current version identifies bmp, gif, jpeg, pbm, pgm, png, ppm, rast (Sun raster), rgb (SGI), tiff, and xbm images. Example 9-1 demonstrates.

Example 9-1. Using the imghdr Module

File: imghdr-example-1.py import imghdr result = imghdr.what("samples/sample.jpg") if result: print "file format:", result else: print "cannot identify file" file format: jpeg

import Image im = Image.open("samples/sample.jpg") print im.format, im.mode, im.size