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Controlling face overlays from different photosControlling face overlays from different photosPosted Sep 10, 2009 20:47 UTC (Thu) by roelofs (subscriber, #2599)In reply to: Controlling face overlays from different photos by hannada Parent article: The Grumpy Editor's hugin experience 1) Converted the original images from JPEG into PNG. (JPEG seems not to support alpha channels). JPEG/JFIF doesn't, but JPEG/JNG does (e.g., see libmng). It's not widely supported, though. However, for what you're doing--multistage image editing--you want PNG or some other lossless format anyway. Switch back to JPEG only at the very end. Greg
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