| void Impala::Core::Array::Laplacian | ( | Array2dScalarReal64 *& | dst, | |
| Array2dScalarReal64 * | src, | |||
| Real64 | sigma, | |||
| int | gamma, | |||
| bool | useRecGauss, | |||
| double | precision | |||
| ) |
Definition at line 19 of file Laplacian.h.
References Add(), GaussDerivative(), MulVal(), and RecGauss().
Referenced by Laplacian().
00021 { 00022 /* the Laplacian is multiplied by sigma^gamma */ 00023 00024 Array2dScalarReal64* Lxx = 0; 00025 Array2dScalarReal64* Lyy = 0; 00026 00027 if(useRecGauss) 00028 { 00029 RecGauss(Lxx, src, sigma, sigma, 2, 0, precision); 00030 RecGauss(Lyy, src, sigma, sigma, 0, 2, precision); 00031 } 00032 else 00033 { 00034 GaussDerivative(Lxx, src, sigma, 2, 0, precision); 00035 GaussDerivative(Lyy, src, sigma, 0, 2, precision); 00036 } 00037 00038 Add(dst, Lxx, Lyy); 00039 delete Lxx; 00040 delete Lyy; 00041 Real64 sigma2 = 1; 00042 for(int i = 0; i < gamma; i++) 00043 sigma2 = sigma2 * sigma; 00044 MulVal(dst, dst, sigma2); 00045 }
Here is the call graph for this function:
