crop out a polygon from png

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chenhao
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crop out a polygon from png

Post by chenhao »

how to crop out a polygon from png
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snibgo
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Location: England, UK

Re: crop out a polygon from png

Post by snibgo »

Images are rectangular. What do you want to happen to pixels?

Perhaps you want all pixels outside a polygon to become transparent. You can draw a white polygon on a black background, then CopyOpacity that to the image.
snibgo's IM pages: im.snibgo.com
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chenhao
Posts: 3
Joined: 2015-10-21T05:18:25-07:00
Authentication code: 1151

Re: crop out a polygon from png

Post by chenhao »

@snibgo thank you very much. my problem had been solved.
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