Improved

Fixed

Alpha mattes. <code>channels=alpha</code> now returns the real grayscale alpha matte, and <code>channels=rgb</code> is accepted as documented, returning an opaque image on a white background by default.Matte-quality headers. Every response includes <code>X-Matte-Confidence</code> and <code>X-Matte-Ambiguous-Ratio</code>, heuristic signals you can use to flag results that may need review, alongside <code>X-Image-Width</code> and <code>X-Image-Height</code>.SDK updates. The JavaScript (<code>@poof-bg/js</code>) and Python (<code>poofbg</code>) SDKs are updated with the new channel option, matte metadata and corrected size presets.

Alpha mattes and matte-quality headers

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Alpha mattes and matte-quality headers