private Bitmap AddWarpEffect(ref Bitmap image)
{
// build warp map
int width = image.Width;
int height = image.Height;
IntPoint[,] warpMap = new IntPoint[height, width];
int size = 8;
int maxOffset = -size + 1;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
int dx = (x / size) * size - x;
int dy = (y / size) * size - y;
if (dx + dy <= maxOffset)
{
dx = (x / size + 1) * size - 1 - x;
}
warpMap[y, x] = new IntPoint(dx, dy);
}
}
// create filter
ImageWarp filter = new ImageWarp(warpMap);
// apply the filter
Bitmap newImage = filter.Apply(image);
return newImage;
}
