pngtodo.txt - list of things to do for libpng
for 0.9
improved dithering
final bug fixes
cHRM transformation
better documentation
after 1.0
overlaying one image on top of another
make pull reader use push reader internally to reduce code, and
increase amount of image read in an error situation
optional palette creation
histogram creation
text conversion between different code types
support for other chunks being defined (sCAl, the gIF series,
and others that people come up with).
pull writer
better dithering
keep up with public chunks
other compression libraries
more exotic interlace handling
better filtering (counting huffman bits? filter type inertia?)
C++ wrapper
other languages (pascal, for one)
comments of > 64K
