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#!/usr/bin/env python
# $URL: http://pypng.googlecode.com/svn/trunk/code/piprgb $
# $Rev: 131 $
# piprgb
#
# Convert input image to RGB or RGBA format. Output will be colour type
# 2 or 6, and will not have a tRNS chunk.
import png
def rgb(out, inp):
"""Convert to RGB/RGBA."""
r = png.Reader(file=inp)
r.preamble()
if r.alpha or r.trns:
get = r.asRGBA
else:
get = r.asRGB
pixels,info = get()[2:4]
w = png.Writer(**info)
w.write(out, pixels)
def main(argv=None):
import sys
if argv is None:
argv = sys.argv
if len(argv) > 1:
f = open(argv[1], 'rb')
else:
f = sys.stdin
return rgb(sys.stdout, f)
if __name__ == '__main__':
main()
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