Provides access to members that control a raster kernel-based filter.
Product Availability
Description
IRasterConvolutionFilter provides access to members that allow setting up a convolution filter. PutCoefficients() and QueryCoefficients() sets and gets kernel coefficients, which are represented as a double array.
QueryCoefficients() expects the array to be allocated by caller, and it fills in the values.
Members
Description | ||
---|---|---|
GainFactor | The gain factor of the kernel filter. | |
GetCenterPosition | Gets the center position of the kernel filter. | |
GetSize | Gets the size of the kernel filter. | |
IsNormalized | Indicates whether the filter is normalized. | |
Normalize | Normalizes the filter. | |
PutCoefficients | Sets the element coefficients of the kernel filter. | |
QueryCoefficients | Gets the element coefficients of the kernel filter. | |
Recursive | Indicates whether the filter is recursive. | |
ScaleBy | Scales the filter coefficients. | |
SetCenterPosition | Sets the center position of the kernel filter. | |
SetSize | Sets the size of the kernel filter. |
CoClasses that implement IRasterConvolutionFilter
CoClasses and Classes | Description |
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RasterConvolutionFilter | A raster kernel-based filter. |
Remarks
The IRasterConvlutionFilter interface is used to create a convolution filter, which can be used to apply on a raster to perform image filtering. To create a convolution filter, the size, values and the center of the kernel must be set.
Here is an example of low pass filter kernel
Use SetSize, SetCenterPosition, and PutCoefficents to define a kernel.
See Also
IPixelFilter Interface | IPixelOperation Interface | IPixelFilterCollection Interface