Can't work in macOS Catalina

[GnohiSiaM]

UIImageColors can get colors of NSImage correctly in Mojave, but always get black and white in Catalina.

[alberttra]

I have the same problem, the background color always return black (0 0 0 1)

[rurza]

@GnohiSiaM @alberttra It's because the code assumes that we're using 32bits per pixel. It seems that the image uses 16-bit floating point per channel (for example, P3 color space). You can always verify it by checking cgImage properties. The best way to handle that problem is to use the Accelerate framework and change the underlying storage for any picture to some common format. It seems that this problem exists only on the Mac but I think it's safe to do so with both UIImage and the NSImage. I have a workaround that works but I'm still working on some details. I'll propose solution later.