acePC Dataset: Print-Scan Color Barcode Images (orig_data + scanned_data + refined_cache)

Print-scan color barcode dataset accompanying the paper "Adaptive Color Enhancement via Palette-Constrained CCM Estimation for Robust Color Classification." Starting from 2,002 original barcode images (6×6 grid, 8-color palette), each was printed and scanned across 5 different devices, yielding 10,010 barcode images per print-scan cycle. This scanned output was itself re-printed and re-scanned across the same 5 devices for a second cycle, and once more for a third — three cumulative print-scan cycles in total (scanned_data/scan_1, scan_2, scan_3). Includes ground-truth labels and a pre-computed tile-color cache (refined_cache) used by the accompanying evaluation pipeline (github.com/ozan-ops/acePC). Please cite: Adaptive Color Enhancement via Palette-Constrained CCM Estimation for Robust Color Classification, 2026.