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Editorial Team
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Asked: 2026-05-27T20:24:06+00:00

I am stuck with reading, processing and displaying sample.png image which contains RGB and

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I am stuck with reading, processing and displaying sample.png image which
contains RGB and an additional Alpha layer.
I have manually removed background in this image and only foreground appears in
windows image slideshow propgram. I couldnt find any useful information
anywhr… when i read it from opencv usng functions imread or cvloadimage it
creates a white background by itself… i have read documentation of highgui
which states that these functions only deal wth RGB not RGBA…any help or idea
will be helpful…

Thanks
Saleh…

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1 Answer

  1. Editorial Team

    AFAIK only current solution is to load alpha channel as separate image and then join it together. You can use cvtColor() to add alpha channel to Mat with image and e.g. mixChannels() to mix it together with loaded aplha image.

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