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ippStsAlphaTypeErr
Alpha compositing depends on the selected operator and on whether samples are treated as premultiplied or straight alpha. IPP accepts only the alpha operation types implemented by the called primitive.
This status points to the compositing mode, not necessarily to the alpha values themselves. A valid ARGB image can still fail if the requested operator is not supported by that function.
Check these details
- The alpha type enum passed to the IPP operation.
- Whether the input is premultiplied or straight alpha.
- Channel order and whether the variant preserves or processes the alpha channel.
Intel IPP Error Reporting · Intel IPP Image Processing Reference · W3C Compositing and Blending
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