png_set_compression_level
Name
png_set_compression_level -- set image compression level
Synopsis
void
png_set_compression_level(png_structp
png_ptr, int
level);
Description
png_set_compression_level() shall set the compression level to "level". The
valid values for "level" range from [0,9], corresponding directly to compression
levels for zlib. The value 0 implies no compression and 9 implies maximal
compression.
Note: Tests have shown that zlib compression levels 3-6 usually perform as well
as level 9 for PNG images, and do considerably fewer caclulations.
