Salt and pepper noise.
The filter adds random salt and pepper noise - sets maximum or minimum values to randomly selected pixels.
The filter accepts 8 bpp grayscale images and 24/32 bpp color images for processing.
Sample usage:
// create filter SaltAndPepperNoise filter = new SaltAndPepperNoise( 10 ); // apply the filter filter.ApplyInPlace( image ); Initial image:
Result image:
public static void SaltAndPepperNoise(this Bitmap image, double noiseAmount)
{
AForge.Imaging.Filters.SaltAndPepperNoise s = new AForge.Imaging.Filters.SaltAndPepperNoise();
s.NoiseAmount = noiseAmount;
s.ApplyInPlace(image);
}
public static Bitmap SaltAndPepper(Bitmap bmp, int intensity)
{
SaltAndPepperNoise filter = new SaltAndPepperNoise(intensity);
filter.ApplyInPlace(bmp);
return bmp;
}
/// <summary>
/// Performs a salt and pepper attack on the bmp.
/// </summary>
/// <param name="p">the intensity to perform the attack at</param>
/// <returns>the resulting image</returns>
internal AltariaImage SaltAndPepper(double p)
{
AltariaImage nai = new AltariaImage(new Bitmap(this.originalbmp), this.Name);
SaltAndPepperNoise filter = new SaltAndPepperNoise(p);
filter.ApplyInPlace(nai.originalbmp);
return nai;
}