GitHub release provides the first published per-image PCA decomposition of the Kodak Lossless True Color Image Suite (PCD0992), covering all 24 images.
Key Takeaways
Kodak PCD0992 is a standard 24-image benchmark widely used in image compression and color science research.
This is described as the first published statistical characterization of inter-channel redundancy structure across the full suite.
PCA decomposition reveals how correlated the R, G, B channels are per image, which directly informs color transform design in codecs.
Artifacts are released as both PDF and JSON, making the data usable programmatically in compression pipelines or model training setups.
Inter-channel redundancy data at this granularity is useful for learned image compression, codec tuning, and color space analysis.