programmatically trimming (automatically cropping out transparent boundaries) an image in objective-

Posted by Ferris on Stack Overflow See other posts from Stack Overflow or by Ferris
Published on 2010-03-15T23:35:46Z Indexed on 2010/03/15 23:39 UTC
Read the original article Hit count: 380

Filed under:

iphone

|

graphics

|

image-processing

|

image-manipulation

Does anyone know how to trim an image (uiimage or cgimage). By trim I mean programatically cropping to the non-transparent bounds of an image. So if I have the image below:

00111000
00010000
01011110
00000000

it would yield:

011100
001000
101111

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