SPATMOD::IMAGE::FILTER_FOCAL_KUANADAPTIVE Class Reference
The Kuan Adaptive Noise Smoothing filter uses a minimum mean square error calculation to estimate the value of the true signal for the center cell in the filter window from the local statistics. More...
#include <spatmod/imagefilterfocal.h>
Public Member Functions | |
| FILTER_FOCAL_KUANADAPTIVE (STAGE *pSourceImage, bool TakeOwnershipSource, STAGE *pMaskImage, bool TakeOwnershipMask, STATSVALIDITY StatsValidity, double SigmaParam, UINT32 NumFocalRows, UINT32 NumFocalColumns, double AmountFilterPct=100.0) | |
| FILTER_FOCAL_KUANADAPTIVE (STAGE *pSourceImage, bool TakeOwnershipSource, STATSVALIDITY StatsValidity, double SigmaParam, UINT32 NumFocalRows, UINT32 NumFocalColumns, double AmountFilterPct=100.0) | |
| virtual | ~FILTER_FOCAL_KUANADAPTIVE () |
Detailed Description
The Kuan Adaptive Noise Smoothing filter uses a minimum mean square error calculation to estimate the value of the true signal for the center cell in the filter window from the local statistics.
It is similar in approach to the Lee filter, but makes fewer simplifying assumptions in the calculations. The Adaptive Noise Filter calculates the signal estimate from the local mean and variance, and the noise standard deviation (assumed to be constant for the entire image); it assumes a Gaussian (normal) distribution for the speckle noise.
Constructor & Destructor Documentation
| SPATMOD::IMAGE::FILTER_FOCAL_KUANADAPTIVE::FILTER_FOCAL_KUANADAPTIVE | ( | STAGE * | pSourceImage, | |
| bool | TakeOwnershipSource, | |||
| STATSVALIDITY | StatsValidity, | |||
| double | SigmaParam, | |||
| UINT32 | NumFocalRows, | |||
| UINT32 | NumFocalColumns, | |||
| double | AmountFilterPct = 100.0 | |||
| ) |
Constructor.
- Parameters:
-
pSourceImage Source image stage TakeOwnershipSource Filter takes ownership of source image StatsValidity How to compute image statisitcs used in filter (fastest should be used for display, exact for processing) SigmaParam User-controlled weight applied to sigma NumFocalRows Number of rows in processing window NumFocalColumns Number of columns in processing window AmountFilterPct Amount of filter to apply (percentage, 0-100)
| SPATMOD::IMAGE::FILTER_FOCAL_KUANADAPTIVE::FILTER_FOCAL_KUANADAPTIVE | ( | STAGE * | pSourceImage, | |
| bool | TakeOwnershipSource, | |||
| STAGE * | pMaskImage, | |||
| bool | TakeOwnershipMask, | |||
| STATSVALIDITY | StatsValidity, | |||
| double | SigmaParam, | |||
| UINT32 | NumFocalRows, | |||
| UINT32 | NumFocalColumns, | |||
| double | AmountFilterPct = 100.0 | |||
| ) |
Constructor with mask to determine areas to filter.
- Parameters:
-
pSourceImage Source image stage TakeOwnershipSource Filter takes ownership of source image pMaskImage Mask, must have single component sample TakeOwnershipMask Filter takes ownership of mask stage and will delete when needed StatsValidity How to compute image statisitcs used in filter (fastest should be used for display, exact for processing) SigmaParam User-controlled weight applied to sigma NumFocalRows Number of rows in processing window NumFocalColumns Number of columns in processing window AmountFilterPct Amount of filter to apply (percentage, 0-100)
| virtual SPATMOD::IMAGE::FILTER_FOCAL_KUANADAPTIVE::~FILTER_FOCAL_KUANADAPTIVE | ( | ) | [virtual] |
Destructor.
The documentation for this class was generated from the following file:
- spatmod/imagefilterfocal.h
