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import ImageEnhance

enh = ImageEnhance.Contrast(im) enh.enhance(1.3).show("30% more contrast")

Image Sequences

The Python Imaging Library contains some basic support for image sequences (also called animation formats). Supported sequence formats include FLI/FLC, GIF, and a few experimental formats. TIFF files can also contain more than one frame.

When you open a sequence file, PIL automatically loads the first frame in the sequence. You can use the seek and tell methods to move between different frames:

Example: Reading sequences

import Image

im = Image.open("animation.gif") im.seek(1) # skip to the second frame

try:

while 1:

im.seek(im.tell()+1) # do something to im except EOFError:

pass # end of sequence

As seen in this example, you'll get an EOFError exception when the sequence ends.

Note that most drivers in the current version of the library only allow you to seek to the next frame (as in the above example). To rewind the file, you may have to reopen it.

The following iterator class lets you to use the for-statement to loop over the sequence:

Example: A sequence iterator class

class ImageSequence:

def __init__(self, im):

self.im = im def __getitem__(self, ix): try:

if ix:

self.im.seek(ix) return self.im except EOFError:

raise IndexError # end of sequence

for frame in ImageSequence(im):

# ...do something to frame...

Postscript Printing

The Python Imaging Library includes functions to print images, text and graphics on Postscript printers. Here's a simple example:



	import ImageEnhance enh = ImageEnhance.Contrast(im) enh.enhance(1.3).show("30% more contrast")

	Image Sequences The Python Imaging Library contains some basic support for image sequences (also called animation formats). Supported sequence formats include FLI/FLC, GIF, and a few experimental formats. TIFF files can also contain more than one frame. When you open a sequence file, PIL automatically loads the first frame in the sequence. You can use the seek and tell methods to move between different frames: Example: Reading sequences import Image im = Image.open("animation.gif") im.seek(1) # skip to the second frame try: while 1: im.seek(im.tell()+1) # do something to im except EOFError: pass # end of sequence As seen in this example, you'll get an EOFError exception when the sequence ends. Note that most drivers in the current version of the library only allow you to seek to the next frame (as in the above example). To rewind the file, you may have to reopen it. The following iterator class lets you to use the for-statement to loop over the sequence: Example: A sequence iterator class class ImageSequence: def __init__(self, im): self.im = im def __getitem__(self, ix): try: if ix: self.im.seek(ix) return self.im except EOFError: raise IndexError # end of sequence for frame in ImageSequence(im): # ...do something to frame...

	Postscript Printing

	The Python Imaging Library includes functions to print images, text and graphics on Postscript printers. Here's a simple example: