Why 'looks white' fails Amazon's image check — and how to test it in code
A seller uploads a product photo on a pure white background. It looks white. Amazon rejects it. The background measured 242, 244, 246 — visually indistinguishable from 255 on a warm monitor, but far enough from the threshold to fail an automated check. This post walks through the checks we implemen…
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- 2026-11-03 09:28 · DEV Community — AI
Why 'looks white' fails Amazon's image check — and how to test it in code