Help apply a ICC profile to a Image

[teobot]

Hello,

I apologise if this has already been covered but I have an ICM colour profile at C:\\Users\\NAME\\Pictures\\_temp\\GREEN_TINT.icm that makes the image green (just a testing ICM) and I would like to apply that ICM profile to my image.

Any help on how to apply an ICM file to an image and have that reflect in the image when I Image.Save would be massively appreciated.

I'm using C# .NET6 using SixLabors v2.1.3

Kind Regards,
Theo

[antonfirsov]

byte[] iccData = File.ReadAllBytes("GREEN_TINT.icm");
image.Metadata.IccProfile = new IccProfile(iccData);
image.Save(...);

Does this achieve what you need?

[teobot]

I feel that #1567 @JimBobSquarePants might solve the issues if merged

[JimBobSquarePants]

#1567 translates the pixels of an image to match the color space of a new ICC profile via an interim transform to a profile connecting space.

This doesn't match what you are describing which is to append an ICC Profile to the image that does not have one as metadata so that the printer reads it.

[teobot]

ahh, I see, Sorry I have misunderstood my own problem. I ended up using

https://github.com/dlemstra/Magick.NET/blob/main/docs/ConvertImage.md

to convert the image data with the ICC before sending it to print, I'll leave it up to you if you want to remove this discussion.

thank you both so much for the help, it's greatly appreciated.

[JimBobSquarePants]

Ah ok. So, you used TransformColorSpace in that example?

#1567 will provide that functionality but we have an issue with LUT transforms that we need to work around first.

[teobot]

yes the code I used was

using (MagickImage magickImage = new MagickImage(reader)) {
 var transformed = magickImage.TransformColorSpace(ColorProfile.ColorMatchRGB, new ColorProfile(deviceSettings.ICCProfile));
 Bitmap bitmapImage = new Bitmap(Image.FromStream(new MemoryStream(magickImage.ToByteArray())));
}