Gamma correction when resizing images

[lejsekt]

Hi,
is it possible to adjust gamma correction when resizing images?
As described here: http://www.ericbrasseur.org/gamma.html?i=1
I've tried resizing the last image:

But didn't get the expected results :)

[JimBobSquarePants]

Yeah there is 😄

https://docs.sixlabors.com/api/ImageSharp/SixLabors.ImageSharp.Processing.ResizeOptions.html#SixLabors_ImageSharp_Processing_ResizeOptions_Compand

[lejsekt]

Thanks for a quick reply!
Which of the options in resize options should be set? Still can't get it to work.

[JimBobSquarePants]

Compand. You want that to be true

[JimBobSquarePants]

using (var source = Image.Load<Rgba32>(Path.Combine(inPath, "gamma.png")))
{
    var ro = new ResizeOptions { Compand = true, Size = new Size(source.Size().Width / 2, 0) };
    source.Mutate(x => x.Resize(ro));
    source.Save(Path.Combine(outPath, "gamma-resize.png"));
}

[lejsekt]

Thanks!