C# Color an image with shadows

Question

I am currently creating sort of a game with C# and am trying to create outfits for the players. I would like to make cloth design and let players chose the colors.

I too

Answer 1

The simplest (and fastest) way to color (tint) an image is to use a ColorMatrix.

Here is the result of using nine colors to tint the original:

Note that I have photoshopped the posted image bo be transparent around the center part; using just the original looks like this..:

((The glitch in the lower right is in the original..))

Here is a function the returns a list of tinted version of an image, one for each color in a list..:

List TintImages(Bitmap bmp0, List colors )
{
    List tinted = new List();
    Size sz = bmp0.Size;
    float f = 256f;
    for (int i = 0; i < colors.Count; i++)
    {
        float r = colors[i].R / f;
        float g = colors[i].G / f;
        float b = colors[i].B / f;

        float[][] colorMatrixElements = {
            new float[] {r,  0,  0,  0, 0},        // red scaling factor of 
            new float[] {0,  g,  0,  0, 0},        // green scaling factor 
            new float[] {0,  0,  b,  0, 0},        // blue scaling factor 
            new float[] {0,  0,  0,  1, 0},        // alpha scaling factor 
            new float[] {0, 0, 0, 0, 1}};          // no further translations
        ImageAttributes imageAttributes = new ImageAttributes();
        ColorMatrix colorMatrix = new ColorMatrix(colorMatrixElements);
        imageAttributes.SetColorMatrix(
            colorMatrix,
            ColorMatrixFlag.Default,
            ColorAdjustType.Bitmap);
        Bitmap bmp = new Bitmap(sz.Width, sz.Height);
        using (Graphics gr = Graphics.FromImage(bmp))
        {
            gr.DrawImage(bmp0, new Rectangle(0, 0, sz.Width, sz.Height),
            0, 0, sz.Width, sz.Height, GraphicsUnit.Pixel, imageAttributes);
            tinted.Add(bmp);
        }
    }
    return tinted;
}