Details
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Bug
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Resolution: Done
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P2: Important
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None
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6.2.5, 6.3.1, 6.4
Description
When scaling down a QImage with SmoothTransformation, some images get a bad quality - like grey noise over the image. In Qt5 it was working fine.
Please see the attached example project to reproduce. Running the example will show a down scaled QImage with bad quality.
The problem only occurs if you scale down an image with Qt::SmoothTransformation is set. Up scaling has no issues either.