Developer Reference for Intel® Integrated Performance Primitives 2019
Initializes the threshold adaptive specification structure for adaptive thresholding with the Gaussian method.
IppStatus ippiThresholdAdaptiveGaussInit(IppiSize roiSize, IppiSize maskSize, IppDataType dataType, int numChannels, Ipp32f sigma, IppiThresholdAdaptiveSpec* pSpec);
ippi.h
Headers: ippcore.h, ippvm.h, ipps.h
Libraries: ippcore.lib, ippvm.lib, ipps.lib
Size of the destination image ROI, in pixels.
Size of the kernel that is used to calculate a threshold value. Width and height of maskSize must be equal and odd.
Data type of the source and destination images. Possible value is ipp8u.
Number of channels in the images. Possible value is 1.
Value of sigma that is used to calculate a threshold value for the Gaussian method. If sigma value is less than, or equal to zero, sigma is set automatically in compliance with the kernel size.
Pointer to the adaptive threshold specification structure.
This function initializes the adaptive threshold specification structure pSpec for adaptive thresholding with the Gaussian method. Before using this function, compute the size of the specification structure using the ThresholdAdaptiveGaussGetBufferSize function.
If sigma is less than, or equal to zero, it is set according to the following formula:
sigma=0.3*((maskSize.width - 1)*0.5 - 1) + 0.8
For an example on how to use this function, refer to the example provided with the ThresholdAdaptiveGauss function description.