pngnq-s9: pngnq-s9 (PNG Image Converter) pngnq-s9: pngnq-s9: pngnq-s9 is a modified version of pngnq, the neural network colour pngnq-s9: quantizer for png images. pngnq-s9: pngnq-s9: pngnq-s9 adds several new options to pngnq including the ability to pngnq-s9: augment a user-supplied palette, the ability to quantize in the YUV pngnq-s9: colour space, and the ability to give more or less weight to specific pngnq-s9: colour components when quantizing. pngnq-s9: pngnq-s9: Homepage: https://sourceforge.net/projects/pngnqs9/