CODEWITHSUNDEEP
pythonqtpyqtmaskalpha
Joel Christophel
Joel Christophel

Reputation: 2663

Create mask from QImage using non-transparent pixels

I'm trying to create a monochrome QBitmap from a QImage. Pixels with an alpha greater than 0 should get turned on in the bitmap. It seems that this should be possible without explicitly looping through all the pixels.

I've gotten close by doing QBitmap.fromImage(QImage(imagePath).createAlphaMask(). However, only the pixels with an alpha of 1 get turned on.

Upvotes: 1

Views: 1051

Answers (1)

Joel Christophel
Joel Christophel

Reputation: 2663

Instead of a QImage, I used a QPixmap. This allowed me to call the function mask, which provided me with the QBitMap I desired:

QPixmap(imagePath).mask()

Upvotes: 2

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