This method modifies sharpness in a raster image.
Public Function Sharpen(level As Integer) As Boolean
public bool Sharpen(int level);
Parameters
level
Sets the degree of sharpness (from 0
to 100, sharpness increases as the level increases)
Return Value
Returns True if successful. Returns False if unsuccessful.
Explanation
The Sharpen method modifies the sharpness of a raster image. As the Level parameter value increases the sharpness increases and the image becomes clearer.
To execute the Sharpen method, set the image handle of the image in the SourceImage property. The Sharpen method supports 8 bit grayscale, 16, 24, and 32 bit images.
Before executing the Sharpen method, you must set the area on the image that will be affected. There are 4 ways to do this.
- To use a mask image, set the SelectMode property to EffectMask. Set the mask image handle in the SourceMask property
- To process the total image, set the SelectMode property to EffectAll
- To process the polygonal area on the image, set the SelectMode property to EffectPolygon. Select the polygon by setting the appropriate coordinate values for the points of the polygon in the Point property
- To process an elliptical area on the image, set the SelectMode property to EffectEllipse. Select the ellipse by setting the appropriate values for the bounding rectangle in the Rect property
When the SelectMode property is set to EffectPolygon or EffectEllipse, the appropriate values must be set in the Inside property. When a 1, 4, or 8 bit image is processed, the total image will be processed regardless of the value set in the SelectMode property.
If successful the resulting raster image data is set in the DestinationImage property.