Aforge, converting pixel data to UnmanagedImage

By : jurer

I'm trying to use AForge in Unity and I have trouble converting the input data. I have a 2-dimensional array storing pixel values that I need to convert to UnmanagedImage. I came up with the following code, but I am not sure if its the most efficient way:

img =  UnmanagedImage.Create(sizx,sizy, System.Drawing.Imaging.PixelFormat.Format24bppRgb);

for (int i =0;i<sizx;i++)
    for (int j =0;j<sizy;j++){
        int index = i+j*sizx;
        img.SetPixel(i,j, new AForge.Imaging.RGB(t[index].r, t[index].g, t[index].b).Color); 

Any help appreciated!

By : jurer


I've ended up using unsafe code and accessing the UnmanagedImage.ImageData directly:

        byte* dst = (byte*)data.Scan0.ToPointer();

        for (int y = 0; y < Height; y++)
            for (int x = 0; x < Width; x++, src++, dst += pixelSize)
                dst[RGB.A] = input[src].A;
                dst[RGB.R] = input[src].R;
                dst[RGB.G] = input[src].G;
                dst[RGB.B] = input[src].B;

            dst += offset;

As it cannot be done in Unity, I had to modify the AForge library.

By : jurer

This video can help you solving your question :)
By: admin