Texture & coherence check
Spot the pattern that repeats and the style that breaks
Look closely at a generated image and the fabric weave repeats like wallpaper, the brick courses drift out of bond, and one corner of the image is painted in a different style than the rest. Individually small, together these coherence failures are what makes an image feel synthetic. Chekr measures them.
What coherence failures look like
- Textures that tile visibly — fabric, brick, foliage, skin
- Patterns that drift or change scale mid-surface
- Style breaks: photographic subject, painterly background
- Detail density that collapses in one region of the frame
- Edges of the frame quietly dissolving into mush
How Chekr checks it
The coherence pass compares regions of the image against each other: is the texture consistent with the material, does the pattern continue correctly, does the rendering style hold across the frame? Deviations are pinned and scored like every other finding.
Because coherence issues are often diffuse, findings favour precise bounding boxes around the worst region plus an explanation of what to look for — so a reviewer can decide in seconds whether it matters for this creative’s size and placement.
Frequently asked
Are coherence issues worth fixing for small placements?
Often not — a repeating texture invisible at 320 pixels wide can ship. Chekr reports severity and confidence per finding so your rule set decides: block on it for a billboard, warn on it for a story ad.
Can rule sets change what counts as a failure?
Yes. Every defect code has per-brand block/warn confidence thresholds, editable on the Rules screen and enforced on the next scan.