/// <summary>
/// Returns a new <see cref="T:System.Drawing.Image"/> with the specified effect.
/// </summary>
/// <param name="image">Image object to which the effect is applied.</param>
/// <param name="effect">Effect type.</param>
/// <returns>
/// Returns a new <see cref="T:System.Drawing.Image"/>, result of applying the effect to specified image .
/// </returns>
public static Image ApplyEffect(this Image image, KnownEffectType effect)
{
SentinelHelper.ArgumentNull(image);
Image imageWithEffect;
using (var bmp = new Bitmap(image.Width, image.Height))
{
using (var graphics = Graphics.FromImage(bmp))
{
bmp.SetResolution(image.HorizontalResolution, image.VerticalResolution);
graphics.DrawImage(
image,
new Rectangle(0, 0, bmp.Width, bmp.Height),
0,
0,
bmp.Width,
bmp.Height,
GraphicsUnit.Pixel,
ImageHelper.GetImageAttributesFromEffect(effect));
imageWithEffect = (Image)bmp.Clone();
}
}
return(imageWithEffect);
}
/// <summary>
/// Gets the manipulation of the colors in an image to an effect.
/// </summary>
/// <param name="effect">Effect type.</param>
/// <returns>
/// A <see cref="T:System.Drawing.Imaging.ImageAttributes" /> object that contains the information about how bitmap colors are manipulated.
/// </returns>
public static ImageAttributes GetImageAttributesFromEffect(KnownEffectType effect)
{
var newColorMatrix = new ColorMatrix();
switch (effect)
{
case KnownEffectType.None:
break;
case KnownEffectType.Disabled:
newColorMatrix = DisabledColorMatrix;
break;
case KnownEffectType.GrayScale:
newColorMatrix = GrayScaleColorMatrix;
break;
case KnownEffectType.GrayScaleRed:
newColorMatrix = GrayScaleRedColorMatrix;
break;
case KnownEffectType.GrayScaleGreen:
newColorMatrix = GrayScaleGreenColorMatrix;
break;
case KnownEffectType.Brightness:
newColorMatrix = BrightnessColorMatrix;
break;
case KnownEffectType.MoreBrightness:
newColorMatrix = MoreBrightnessColorMatrix;
break;
case KnownEffectType.Dark:
newColorMatrix = DarkColorMatrix;
break;
case KnownEffectType.MoreDark:
newColorMatrix = MoreDarkColorMatrix;
break;
case KnownEffectType.GrayScaleBlue:
newColorMatrix = GrayScaleBlueColorMatrix;
break;
case KnownEffectType.OpacityPercent05:
newColorMatrix.Matrix33 = 0.05f;
break;
case KnownEffectType.OpacityPercent10:
newColorMatrix.Matrix33 = 0.10f;
break;
case KnownEffectType.OpacityPercent20:
newColorMatrix.Matrix33 = 0.20f;
break;
case KnownEffectType.OpacityPercent30:
newColorMatrix.Matrix33 = 0.30f;
break;
case KnownEffectType.OpacityPercent40:
newColorMatrix.Matrix33 = 0.40f;
break;
case KnownEffectType.OpacityPercent50:
newColorMatrix.Matrix33 = 0.50f;
break;
case KnownEffectType.OpacityPercent60:
newColorMatrix.Matrix33 = 0.60f;
break;
case KnownEffectType.OpacityPercent70:
newColorMatrix.Matrix33 = 0.70f;
break;
case KnownEffectType.OpacityPercent80:
newColorMatrix.Matrix33 = 0.80f;
break;
case KnownEffectType.OpacityPercent90:
newColorMatrix.Matrix33 = 0.90f;
break;
}
ImageAttributes imageAttributes;
ImageAttributes tempImageAttributes = null;
try
{
tempImageAttributes = new ImageAttributes();
tempImageAttributes.SetColorMatrix(newColorMatrix);
imageAttributes = (ImageAttributes)tempImageAttributes.Clone();
}
finally
{
if (tempImageAttributes != null)
{
tempImageAttributes.Dispose();
}
}
return(imageAttributes);
}
