250da4226e
Gradients (params `gradients`, a checkbox in the panel for Grayscale and Color; off unless asked for): an area whose colour changes evenly along one direction is traced as one path filled with a linear gradient, not as bands of flat colour. Gradients are found before the palette is made, so no colour is spent on their bands: a connected run of smoothly changing pixels is a gradient when a plane fits each colour channel with all three sloping the same way, the colours along that way are at most six stops with ramps between them, and painting them back gives the area's own pixels. Flat colour, soft edges between flat colours and shading that goes two ways are left as they were. The harness gains two linear-gradient inputs with known lines and stops, and measures whether each is found, the angle of its line and the colours of its ramp. |
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| .. | ||
| src | ||
| tests/quality | ||
| Cargo.toml | ||