Change the color of an image by pixel.

[alexlezam]

Hello, I am very new to magickImage, I only use it for a personal project.
I use it to splice images, but I also need to change the color of an image.
I have the idea of taking each pixel of the image, compare if the alpha channel is greater than 0 and put a color depending on the value of the alpha channel.
I would need to know how to get the color out of a pixiel and how to change its color.
thank you

[dlemstra]

You could do something like this to access individual pixels:

using (var image = new MagickImage(fileName))
{
    // or use image.GetPixelsUnsafe() that is faster but has no bounds checking
    using (var pixels = image.GetPixels())
    {
        for (var y = 0; y < image.Height; y++)
        {
            for (var x = 0; x < image.Width; x++)
            {
                var pixel = pixels.GetPixel(x, y);

                // Change pixel here

                pixels.SetPixel(pixel);
            }
        }
    }
}

[alexlezam]

Thank you.