/// <summary>
/// Processes the image.
/// </summary>
/// <param name="factory">
/// The the current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class containing
/// the image to process.
/// </param>
/// <param name="image">The current image to process</param>
/// <param name="newImage">The new Image to return</param>
/// <returns>
/// The processed image from the current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
/// </returns>
public Image TransformImage(ImageFactory factory, Image image, Image newImage)
{
using (Graphics graphics = Graphics.FromImage(newImage))
{
using (ImageAttributes attributes = new ImageAttributes())
{
attributes.SetColorMatrix(this.Matrix);
Rectangle rectangle = new Rectangle(0, 0, image.Width, image.Height);
graphics.DrawImage(image, rectangle, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, attributes);
}
}
// Add a vignette to finish the effect.
factory.Update(newImage);
Vignette vignette = new Vignette();
newImage = (Bitmap)vignette.ProcessImage(factory);
// Reassign the image.
image.Dispose();
image = newImage;
return image;
}
/// <summary>
/// Adds a vignette image effect to the current image.
/// </summary>
/// <param name="color">
/// The <see cref="T:System.Drawing.Color"/> to tint the image with. Defaults to black.
/// </param>
/// <returns>
/// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
/// </returns>
public ImageFactory Vignette(Color? color = null)
{
if (this.ShouldProcess)
{
Vignette vignette = new Vignette
{
DynamicParameter = color.HasValue && !color.Equals(Color.Transparent)
? color.Value
: Color.Black
};
this.CurrentImageFormat.ApplyProcessor(vignette.ProcessImage, this);
}
return this;
}
/// <summary>
/// Adds a vignette image effect to the current image.
/// </summary>
/// <returns>
/// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
/// </returns>
public ImageFactory Vignette()
{
if (this.ShouldProcess)
{
Vignette vignette = new Vignette();
this.Image = vignette.ProcessImage(this);
}
return this;
}
/// <summary>
/// Adds a vignette image effect to the current image.
/// </summary>
/// <returns>
/// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
/// </returns>
public ImageFactory Vignette()
{
if (this.ShouldProcess)
{
Vignette vignette = new Vignette();
this.ApplyProcessor(vignette.ProcessImage);
}
return this;
}
/// <summary>
/// Processes the image.
/// </summary>
/// <param name="factory">
/// The the current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class containing
/// the image to process.
/// </param>
/// <param name="image">The current image to process</param>
/// <param name="newImage">The new Image to return</param>
/// <returns>
/// The processed image from the current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
/// </returns>
public Image TransformImage(ImageFactory factory, Image image, Image newImage)
{
using (Graphics graphics = Graphics.FromImage(newImage))
{
using (ImageAttributes attributes = new ImageAttributes())
{
attributes.SetColorMatrix(this.Matrix);
Rectangle rectangle = new Rectangle(0, 0, image.Width, image.Height);
graphics.DrawImage(image, rectangle, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, attributes);
// Add a glow to the image.
using (GraphicsPath path = new GraphicsPath())
{
path.AddEllipse(rectangle);
using (PathGradientBrush brush = new PathGradientBrush(path))
{
// Fill a rectangle with an elliptical gradient brush that goes from orange to transparent.
// This has the effect of painting the far corners transparent and fading in to orange on the
// way in to the centre.
brush.WrapMode = WrapMode.Tile;
brush.CenterColor = Color.FromArgb(70, 255, 153, 102);
brush.SurroundColors = new Color[] { Color.FromArgb(0, 0, 0, 0) };
Blend blend = new Blend
{
Positions = new float[] { 0.0f, 0.2f, 0.4f, 0.6f, 0.8f, 1.0F },
Factors = new float[] { 0.0f, 0.5f, 1f, 1f, 1.0f, 1.0f }
};
brush.Blend = blend;
Region oldClip = graphics.Clip;
graphics.Clip = new Region(rectangle);
graphics.FillRectangle(brush, rectangle);
graphics.Clip = oldClip;
}
}
}
}
// Add a vignette to finish the effect.
factory.Update(newImage);
Vignette vignette = new Vignette();
newImage = (Bitmap)vignette.ProcessImage(factory);
// Reassign the image.
image.Dispose();
image = newImage;
return image;
}