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[TASK] Seperate generation of gauss blur filters.

This commit is contained in:
Jan Philipp Timme 2016-01-05 18:27:06 +01:00
parent 66e2ae8d30
commit 3ce2be6e3d
1 changed files with 14 additions and 5 deletions
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19
canny_edge_machine.cpp
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@ -81,12 +81,12 @@ class CannyEdgeMachine {
} }
}; };
void doGaussBlur(void) { /**
int filter_width = this->filter_size; * Do not forget to free the filter generated by this method!
double sigma = this->filter_sigma; */
// build the gauss filter double* generateGaussFilter(int filter_width, double sigma, double& sum_weights) {
double* filter = (double*) malloc(sizeof(double) * filter_width * filter_width); double* filter = (double*) malloc(sizeof(double) * filter_width * filter_width);
double sum_weights = 0; sum_weights = 0;
std::cout << "Using gauss filter: " << std::endl; std::cout << "Using gauss filter: " << std::endl;
for(int x=0; x<filter_width; x++) { for(int x=0; x<filter_width; x++) {
int i = x - (filter_width/2); int i = x - (filter_width/2);
@ -99,6 +99,15 @@ class CannyEdgeMachine {
std::cout << std::endl; std::cout << std::endl;
} }
std::cout << std::endl << "Sum weights: " << sum_weights << std::endl; std::cout << std::endl << "Sum weights: " << sum_weights << std::endl;
return filter;
};
void doGaussBlur(void) {
int filter_width = this->filter_size;
// build the gauss filter
double sum_weights = 0.0;
double* filter = this->generateGaussFilter(this->filter_size, this->filter_sigma, sum_weights);
std::cout << sum_weights << std::endl;
// apply gauss filter // apply gauss filter
int filter_offset = (filter_width+1)/2; int filter_offset = (filter_width+1)/2;
for(int x=(0+filter_offset); x<(this->width-filter_offset); x++) { for(int x=(0+filter_offset); x<(this->width-filter_offset); x++) {