Image Border Adder
Add a solid frame without covering source pixels.
TOOL CATEGORY
Fast visual fixes, conversion, cleanup and generation.
CATEGORY WORKSPACES
Add a solid frame without covering source pixels.
Report per-channel population variance over the visible one-pixel border.
Report opposite-border decoded RGB mismatch for bounded tiling review.
Apply a bounded additive brightness adjustment to still-image RGB channels.
Compare visible decoded luminance in a fixed central rectangle and surrounding edge region.
Report per-channel decoded RGB zero and full-scale endpoint coverage.
Report decoded RGBA minimums, maximums, means, dimensions, and transparent-pixel count.
Report visible decoded RGB max-minus-min channel spread and quartiles.
Displace red and blue channel samples in opposite horizontal directions.
Arrange two to nine images in a fitted PNG grid.
Invert each still-image RGB channel to its colour complement while preserving alpha.
Extract an approximate dominant colour palette.