Easy converting PNM to (MASK+FG+BG)-pdf.
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Updated
Jun 7, 2023 - C
Easy converting PNM to (MASK+FG+BG)-pdf.
Linux fork BookScanLib.ru (http://djvu-soft.narod.ru/bookscanlib/).
Tool for enhancing noisy scanned text images
Small image utility featuring an implementation of the median-cut color quantization algorithm and Floyd-Steinberg dithering in C.
A C library for black-and-white image dithering
Convert scans of handwritten notes to beautiful.
Bayer image quandtization and dithering
Self-contained JBIG2 compressor for PDF files
GIMP plugin applies black and white dithering to an image with different algorithms.
Adaptive Thresholding Using the Integral Image.
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