path of UIImage for figure inside png

Question

i have png, which have clear background with difficult figure inside, like animal. For me is necessary to get path of this figure exactly, to draw it on background image. Can u suggest any way to do it programmatically?

score 0 · Answer 1 · edited May 23 '17 at 11:48

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Use png alpha channel to create a mask for the background image. There is a more detailed discussion about this here.

edited May 23 '17 at 11:48

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answered Jul 05 '12 at 12:30

javieralog

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can u explain more, with example. – user170317 Jul 05 '12 at 12:35
http://stackoverflow.com/questions/8126276/how-to-convert-uiimage-cgimagerefs-alpha-channel-to-mask – javieralog Jul 05 '12 at 12:40

path of UIImage for figure inside png

1 Answers1