Notes on color science, pixel formats, and LLM inference.
Technical notes from Polyverse's graphics and inference work: original research, reference values, and where standards and common practice quietly diverge.
Blue Noise Token Sampling
Sampling error is quantization error. How dithering research became a generative blue noise RNG, and what happens when llama.cpp token sampling stops drawing white noise.
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Integer Color Format Conversion Relations
Bit replication, truncation, and float conversion between integer color formats. Why uint8 and uint16 are canonical, and why rounding during truncation is incorrect.
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Color Space Specification
Authoritative definitions and derived values for sRGB, CIELAB, OKLab, Y′CbCr, and related color spaces. What each standard actually defines, and what is merely derived.
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The D65 Whitepoint
Precision, history, and derivation of the standard daylight illuminant. Temperature scales, the daylight locus, and which chromaticity values are authoritative for which purpose.
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Articles were written using AI assistance and fully verified against the relevant standards and sources.