Contrast adjustment to a fyne canvas.Image

[bob-anderson-ok]

How can I add contrast adjustment to a canvas.Image

I have four types to deal with:

image.Gray image.Gray16 (I have solved these types already)

fltimg.Gray32 and fltimg.Gray64 have me stumped.

[andydotxyz]

We don't have built-in colour controls, so it's a case of modifying pixel values with some image manipulation library.
I'm not familiar with fltimg, perhaps they can help with colourising the pixels.

[bob-anderson-ok]

Thanks. I have done pixel value manipulation on the 8 bit and 16 bit images. I'll probably end up doing the smae on the float32 and float64 images as well.