On 4/10/07, César Pérez <[EMAIL PROTECTED]> wrote: > Hi, > I am new to this list but and i have a small problem with PIL. > > I am looking for a function that works like composite does in > imagemagick.
[..snip..] > from PIL import Image > > dtop = Image.open("dtop.png") > frame = Image.open("frame.png") > > dtop.paste(frame,(0,0),frame) > dtop.save("test.png") > ------------------------ > I tried every form of paste but I always get this result or worst. The problem you have happens because alpha channel of images *also* gets composited using the mask you specified. To do it right you actually need to split image, save target image alpha channel and after compositing merge it back using original alpha channel: from PIL import Image dtop = Image.open("dtop.png") frame = Image.open("frame.png") assert dtop.mode == "RGBA" r,g,b,a = dtop.split() dtop = Image.merge("RGB", (r,g,b)) dtop.paste(frame,(0,0),frame) r,g,b = dtop.split() dtop = Image.merge("RGBA", (r,g,b,a)) dtop.save("test.png") Best regards, Alexey. _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig