http://snippets.dzone.com/posts Sun, 07 Sep 2008 20:35:06 GMT DZone Snippets: getpixel code http://snippets.dzone.com/posts/show/632 Pys60 now has a decent Canvas and Image class. <br />We can draw many shapes and color them. <br />However, one important feature is missing, ie. getpixel(). <br />So, you can only 'write' but not 'read' from graphics. <br /> <br />To get around this problem, I write a small library that <br />add 'getpixel' to the Image class. <br />Now, you can call im.getpixel(x,y) and get an (R,G,B) tuple. <br /><code> <br /># some setup <br />from graphics import * <br />im = screenshot() # sample image <br /> <br /># http://larndham.net/service/pys60/getpixel.py <br />import getpixel <br />getpixel.enable(im) # magically give Image.getpixel() <br />r, g, b = im.getpixel(0,0) # top left corner <br />print 'Red: %s, Green:%s, Blue:%s' % (r,g,b) <br /></code> <br />Now you can do some easy image processing with getpixel. <br /> <br />Implementation note <br />=================== <br />- This is a pure python module <br />- It saves an image as an uncompressed PNG file <br />- It reads pixel data from the file and attach it to the image. <br />- You need to call enable() every time you change the image. Mon, 05 Sep 2005 03:46:03 GMT http://snippets.dzone.com/posts/show/632 korakot (Korakot Chaovavanich)