/// <summary>
/// Overlay a color on a image
/// </summary>
/// <param name="image">The image.</param>
/// <param name="brush">The brush.</param>
/// <param name="alpha">The alpha.</param>
/// <returns>Image.</returns>
public static Image Overlay(this Image image, Brush brush, double alpha = 0.5)
{
Bitmap colorBitmap = new Bitmap(image.Width, image.Height);
using (Graphics graph = Graphics.FromImage(colorBitmap))
{
Rectangle rectangle = new Rectangle(0, 0, colorBitmap.Width, colorBitmap.Height);
graph.FillRectangle(brush, rectangle);
}
ImageFilter imageFilter = new ImageFilter();
return imageFilter.Overlay(new Bitmap(image), colorBitmap, alpha);
}
/// <summary>
/// Overlay two images
/// </summary>
/// <param name="image">The image.</param>
/// <param name="overlayingImage">The overlaying image.</param>
/// <param name="alpha">The alpha.</param>
/// <returns>Image.</returns>
public static Image Overlay(this Image image, Image overlayingImage, double alpha = 0.5)
{
ImageFilter imageFilter = new ImageFilter();
return imageFilter.Overlay(new Bitmap(image), new Bitmap(overlayingImage), alpha);
}
