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Flif
Jul 20, 2023
Free Lossless Image Format
FLIF is a lossless image format based on MANIAC compression. MANIAC Meta-Adaptive Near-zero Integer Arithmetic Coding is a variant of CABAC context-adaptive binary arithmetic coding, where the contexts are nodes of decision trees which are dynamically learned at encode time.
FLIF outperforms PNG, FFV1, lossless WebP, lossless BPG and lossless JPEG2000 in terms of compression ratio.
Moreover, FLIF supports a form of progressive interlacing essentially a generalization/improvement of PNG’s Adam7 which means that any prefix e.g. partial download of a compressed file can be used as a reasonable lossy encoding of the entire image.
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