/// <summary>
/// blur the image
/// </summary>
/// <param name="Img">image to manipulate</param>
/// <param name="weight">weight of effect</param>
/// <example>
/// <code>
/// <![CDATA[
/// ImageData Img = new ImageData(...);
/// // apply filter to image
/// Filter.Blur(ref Img, 30.0);
/// ]]>
/// </code>
/// </example>
/// <see cref="blur"/>
/// <returns></returns>
static public void Blur(ref ImageData Img, double weight)
{
ConvolutionMatrix CMatrix = new ConvolutionMatrix(3);
CMatrix.SetAll(1);
CMatrix.Matrix[1, 1] = weight;
CMatrix.Factor = weight + 8;
ApplyConvolution3x3(ref Img, CMatrix);
}
/// <summary>
/// remove mean of image
/// </summary>
/// <param name="Img">image to manipulate</param>
/// <param name="weight">weight of effect</param>
/// <example>
/// <code>
/// <![CDATA[
/// ImageData Img = new ImageData(...);
/// // apply filter to image
/// Filter.RemoveMean(ref Img, 10.0);
/// ]]>
/// </code>
/// </example>
/// <returns></returns>
static public void RemoveMean(ref ImageData Img, double weight)
{
ConvolutionMatrix CMatrix = new ConvolutionMatrix(3);
CMatrix.SetAll(1);
CMatrix.Matrix[0, 0] = -1;
CMatrix.Matrix[1, 0] = -1;
CMatrix.Matrix[2, 0] = -1;
CMatrix.Matrix[0, 1] = -1;
CMatrix.Matrix[1, 1] = weight;
CMatrix.Matrix[2, 1] = -1;
CMatrix.Matrix[0, 2] = -1;
CMatrix.Matrix[1, 2] = -1;
CMatrix.Matrix[2, 2] = -1;
CMatrix.Factor = weight - 8;
ApplyConvolution3x3(ref Img, CMatrix);
}
// Sharpen image
public static Bitmap SharpenImage(Bitmap image, double weight)
{
var matrix = new ConvolutionMatrix(3);
matrix.SetAll(1);
matrix.Matrix[0, 0] = 0;
matrix.Matrix[1, 0] = -2;
matrix.Matrix[2, 0] = 0;
matrix.Matrix[0, 1] = -2;
matrix.Matrix[1, 1] = weight;
matrix.Matrix[2, 1] = -2;
matrix.Matrix[0, 2] = 0;
matrix.Matrix[1, 2] = -2;
matrix.Matrix[2, 2] = 0;
matrix.Factor = weight - 8;
return(Convolution3x3(image, matrix));
}
/// <summary>
/// apply gaussianblur to image
/// </summary>
/// <example>
/// <code>
/// <![CDATA[
/// ImageData Img = new ImageData(...);
/// // apply filter to image
/// Filter.GaussianBlur(ref Img, 20.0);
/// ]]>
/// </code>
/// </example>
/// <param name="Img">image to manipulate</param>
/// <param name="peakValue">parameter</param>
/// <see cref="gaussian"/>
/// <returns></returns>
static public void GaussianBlur(ref ImageData Img, double peakValue)
{
ConvolutionMatrix CMatrix = new ConvolutionMatrix(3);
CMatrix.SetAll(1);
CMatrix.Matrix[0, 0] = peakValue / 4;
CMatrix.Matrix[1, 0] = peakValue / 2;
CMatrix.Matrix[2, 0] = peakValue / 4;
CMatrix.Matrix[0, 1] = peakValue / 2;
CMatrix.Matrix[1, 1] = peakValue;
CMatrix.Matrix[2, 1] = peakValue / 2;
CMatrix.Matrix[0, 2] = peakValue / 4;
CMatrix.Matrix[1, 2] = peakValue / 2;
CMatrix.Matrix[2, 2] = peakValue / 4;
CMatrix.Factor = peakValue * 4;
ApplyConvolution3x3(ref Img, CMatrix);
}
/// <summary>
/// apply emboss effect on image
/// </summary>
/// <param name="Img">image to manipulate</param>
/// <param name="weight">weight of emboss effect</param>
/// <example>
/// <code>
/// <![CDATA[
/// ImageData Img = new ImageData(...);
/// // apply filter to image
/// Filter.Emboss(ref Img, 4.0);
/// ]]>
/// </code>
/// </example>
/// <see cref="emboss"/>
/// <returns></returns>
static public void Emboss(ref ImageData Img, double weight)
{
ConvolutionMatrix CMatrix = new ConvolutionMatrix(3);
CMatrix.SetAll(1);
CMatrix.Matrix[0, 0] = -1;
CMatrix.Matrix[1, 0] = 0;
CMatrix.Matrix[2, 0] = -1;
CMatrix.Matrix[0, 1] = 0;
CMatrix.Matrix[1, 1] = weight;
CMatrix.Matrix[2, 1] = 0;
CMatrix.Matrix[0, 2] = -1;
CMatrix.Matrix[1, 2] = 0;
CMatrix.Matrix[2, 2] = -1;
CMatrix.Factor = 4;
CMatrix.Offset = 127;
ApplyConvolution3x3(ref Img, CMatrix);
}
/// <summary>
/// blur the image
/// </summary>
/// <param name="Img">image to manipulate</param>
/// <param name="weight">weight of effect</param>
/// <example>
/// <code>
/// <![CDATA[
/// ImageData Img = new ImageData(...);
/// // apply filter to image
/// Filter.Blur(ref Img, 30.0);
/// ]]>
/// </code>
/// </example>
/// <see cref="blur"/>
/// <returns></returns>
public static void Blur(ref ImageData Img, double weight)
{
ConvolutionMatrix CMatrix = new ConvolutionMatrix(3);
CMatrix.SetAll(1);
CMatrix.Matrix[1, 1] = weight;
CMatrix.Factor = weight + 8;
ApplyConvolution3x3(ref Img, CMatrix);
}
/// <summary>
/// sharpen an image
/// </summary>
/// <example>
/// <code>
/// <![CDATA[
/// ImageData Img = new ImageData(...);
/// // apply filter to image
/// Filter.Sharpen(ref Img, 4.0);
/// ]]>
/// </code>
/// </example>
/// <param name="Img">image to manipulate</param>
/// <param name="weight">weight</param>
/// <see cref="sharpen"/>
/// <returns></returns>
public static void Sharpen(ref ImageData Img, double weight)
{
ConvolutionMatrix CMatrix = new ConvolutionMatrix(3);
CMatrix.SetAll(1);
CMatrix.Matrix[0, 0] = 0;
CMatrix.Matrix[1, 0] = -2;
CMatrix.Matrix[2, 0] = 0;
CMatrix.Matrix[0, 1] = -2;
CMatrix.Matrix[1, 1] = weight;
CMatrix.Matrix[2, 1] = -2;
CMatrix.Matrix[0, 2] = 0;
CMatrix.Matrix[1, 2] = -2;
CMatrix.Matrix[2, 2] = 0;
CMatrix.Factor = weight - 8;
ApplyConvolution3x3(ref Img, CMatrix);
}
/// <summary>
/// apply gaussianblur to image
/// </summary>
/// <example>
/// <code>
/// <![CDATA[
/// ImageData Img = new ImageData(...);
/// // apply filter to image
/// Filter.GaussianBlur(ref Img, 20.0);
/// ]]>
/// </code>
/// </example>
/// <param name="Img">image to manipulate</param>
/// <param name="peakValue">parameter</param>
/// <see cref="gaussian"/>
/// <returns></returns>
public static void GaussianBlur(ref ImageData Img, double peakValue)
{
ConvolutionMatrix CMatrix = new ConvolutionMatrix(3);
CMatrix.SetAll(1);
CMatrix.Matrix[0, 0] = peakValue / 4;
CMatrix.Matrix[1, 0] = peakValue / 2;
CMatrix.Matrix[2, 0] = peakValue / 4;
CMatrix.Matrix[0, 1] = peakValue / 2;
CMatrix.Matrix[1, 1] = peakValue;
CMatrix.Matrix[2, 1] = peakValue / 2;
CMatrix.Matrix[0, 2] = peakValue / 4;
CMatrix.Matrix[1, 2] = peakValue / 2;
CMatrix.Matrix[2, 2] = peakValue / 4;
CMatrix.Factor = peakValue * 4;
ApplyConvolution3x3(ref Img, CMatrix);
}
/// <summary>
/// apply emboss effect on image
/// </summary>
/// <param name="Img">image to manipulate</param>
/// <param name="weight">weight of emboss effect</param>
/// <example>
/// <code>
/// <![CDATA[
/// ImageData Img = new ImageData(...);
/// // apply filter to image
/// Filter.Emboss(ref Img, 4.0);
/// ]]>
/// </code>
/// </example>
/// <see cref="emboss"/>
/// <returns></returns>
public static void Emboss(ref ImageData Img, double weight)
{
ConvolutionMatrix CMatrix = new ConvolutionMatrix(3);
CMatrix.SetAll(1);
CMatrix.Matrix[0, 0] = -1;
CMatrix.Matrix[1, 0] = 0;
CMatrix.Matrix[2, 0] = -1;
CMatrix.Matrix[0, 1] = 0;
CMatrix.Matrix[1, 1] = weight;
CMatrix.Matrix[2, 1] = 0;
CMatrix.Matrix[0, 2] = -1;
CMatrix.Matrix[1, 2] = 0;
CMatrix.Matrix[2, 2] = -1;
CMatrix.Factor = 4;
CMatrix.Offset = 127;
ApplyConvolution3x3(ref Img, CMatrix);
}
