Incorrect reading images with transparent pixels

[stepanp]

I have some psd file with transparency background. I try load it with libqpsd, but some pixels with opacity displays incorrect:

Left - psd file, loaded with libqsd, right - png file saved from same psd file using photoshop.
Psd file format: RGB color, 8-bits per channel, Photoshop CS5.
Same thing has in all my psd files having non-white transparent pixels.

[stepanp]

I found fix:
brendan-duncan/image#28
https://github.com/brendan-duncan/image/blob/master/lib/src/formats/psd/psd_image.dart, line 544

Pull request here:
#16

[roniemartinez]

Hi,
Do you think the bug can also be found in other color depths (e.g. 16)?

[stepanp]

Hi.

Yes, i think this bug can be found in all color dephts.
Photoshop store merged image with blending it with white. So, if image have transparent background, this bug is possible.

For 16 bits, I think, same fix could be used.