**Namespace:**
AForge.Imaging.Filters

**Assembly:**
AForge.Imaging (in AForge.Imaging.dll) Version: 2.2.5.0 (2.2.5.0)

# Syntax

C# |
---|

public class GaussianSharpen : Convolution |

# Remarks

The filter performs convolution filter using
the kernel, which is calculate with the help of Kernel2D(Int32)
method and then converted to integer sharpening kernel. First of all the integer kernel
is calculated from Kernel2D(Int32) by dividing all elements by
the element with the smallest value. Then the integer kernel is converted to sharpen kernel by
negating all kernel's elements (multiplying with **-1**), but the central kernel's element
is calculated as **2 * sum - centralElement**, where **sum** is the sum off elements
in the integer kernel before negating.

For the list of supported pixel formats, see the documentation to Convolution filter.

Sample usage:

// create filter with kernel size equal to 11 // and Gaussia sigma value equal to 4.0 GaussianSharpen filter = new GaussianSharpen( 4, 11 ); // apply the filter filter.ApplyInPlace( image );

**Initial image:**

**Result image:**

# Inheritance Hierarchy

AForge.Imaging.Filters..::.BaseUsingCopyPartialFilter

AForge.Imaging.Filters..::.Convolution

AForge.Imaging.Filters..::.GaussianSharpen