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Dither Settings
Color Space Aware:
Uses perceptual distance for candidate selection with linear error diffusion. For RGB, processes channels jointly. For grayscale: CIE76=CIE94 (simple ΔL²), CIEDE2000 uses lightness-dependent weighting, OKLab uses different L curve.
Controls random kernel selection in Mixed modes. Each channel uses a different derived seed.
Row stride applies to row-aligned output. Padding fill affects both row padding and RGB666 partial groups (4-pixel boundaries).
Grayscale:
Downscale:
×
Aspect ratio is preserved. Edit one dimension to auto-calculate the other.
Upscale for viewing:
×
Integer upscaling with nearest neighbor for pixel-perfect viewing.
Red Channel
3 bits (8 levels)
Green Channel
3 bits (8 levels)
Blue Channel
2 bits (4 levels)
Grayscale
4 bits (16 levels)
Processing image...