image-measurement

Measures images numerically and compares two images with Pillow — exact hex colour palettes with coverage, per-hue census, luminance/saturation/entropy statistics, per-region grid statistics, perceptual hash distance, and changed-region bounding boxes. Use when asked whether two images match, whether a render or screenshot kept a reference's colour scheme or layout, what specifically changed between two versions, what the exact colours of an image are, or to compare a generated image against a reference. Does NOT measure 3D geometry or polygon count.