Live swatch grid & ΔE₀₀ #20

New Issue

2026-09-08T17:42:22+01:00

gronod commented

2026-09-08 17:42:22 +01:00

Summary

Consume jsonRow event:row_complete. Traffic lights from settings, not Stage 5 bands.

Spec refs

docs/15-stage3-chartread.md, 05-argyll-fork.md §3. #178 #95 #184.

Scope

In: CIEDE2000 engine, grid, split swatches, live reclassify.
Out: history / Stage 5 bands.

Implementation notes

Grid rows A→Z, patches 1→N LTR. 135° diagonal split TL intended / BR measured.
is_pad skipped only when no measured AND all-zero device (white -e still renders).
XYZ scale 0–100 → /100 before Lab. Device channels 0–100%.
Lab→sRGB D50 Bradford for display.
Traffic lights: settings delta_e_good_max 2.0 / delta_e_warning_max 5.0; reclassify on settings-changed.
row_index+1 >= total_rows forces ALL_STRIPS_READ.
Distinct from Stage 5 quality bands (#95).

Rewrite invariants

#178 pad rule + split + XYZ/100. #95 bands ≠ swatch thresholds.

Dependencies

Blocks-on: 19, 5.
Unblocks: none.

Test

CI/mock: ΔE₀₀ reference vectors; pad/white cases; threshold change reclassifies.
Hardware: N/A (uses json rows).

Acceptance criteria

Reference-vector tests pass.
White pads render.

## Summary Consume `jsonRow` `event:row_complete`. Traffic lights from settings, not Stage 5 bands. ## Spec refs docs/15-stage3-chartread.md, 05-argyll-fork.md §3. #178 #95 #184. ## Scope In: CIEDE2000 engine, grid, split swatches, live reclassify. Out: history / Stage 5 bands. ## Implementation notes Grid rows A→Z, patches 1→N LTR. 135° diagonal split TL intended / BR measured. `is_pad` skipped only when no measured AND all-zero device (white `-e` still renders). XYZ scale 0–100 → /100 before Lab. Device channels 0–100%. Lab→sRGB D50 Bradford for display. Traffic lights: settings `delta_e_good_max` 2.0 / `delta_e_warning_max` 5.0; reclassify on settings-changed. `row_index+1 >= total_rows` forces ALL_STRIPS_READ. Distinct from Stage 5 quality bands (#95). ## Rewrite invariants #178 pad rule + split + XYZ/100. #95 bands ≠ swatch thresholds. ## Dependencies Blocks-on: 19, 5. Unblocks: none. ## Test - CI/mock: ΔE₀₀ reference vectors; pad/white cases; threshold change reclassifies. - Hardware: N/A (uses json rows). ## Acceptance criteria - [ ] Reference-vector tests pass. - [ ] White pads render.

gronod added this to the M4 — Measurement milestone 2026-09-08 17:42:22 +01:00

gronod added the

Priority

High

2

Project/ICCery-v2 Feature/Backend Feature/UI labels 2026-09-08 17:42:22 +01:00

gronod referenced this issue from a commit

2026-09-08 19:14:17 +01:00

Settings store, logging & settings dialog (#5)

gronod referenced this issue

2026-09-08 19:14:28 +01:00

Settings store, logging & settings dialog (#5) #38