void median_filter_image(const image_matrix & input_image_,
image_matrix & filtered_image_,
const int window_size_,
const int start_[2],
const int end_[2])
{
for (int r = start_[Y]; r < end_[Y]; r++) {
for (int c = start_[X]; c <end_[X]; c++) {
filtered_image_.set_pixel(r, c, median_filter_pixel(input_image_, r, c, window_size_));
}
}
}
// function run by each thread
void* func( void* arg ){
task* t_arg = ( task* )arg;
int start = t_arg->start_row;
int stop = t_arg->stop_row;
int window_size = t_arg->window_size;
image_matrix& input = t_arg->input_image;
image_matrix * output_address= t_arg->output_image;
//'y' is the same as row
//'x' is the same as col
for(int y = start; y<=stop; y++){
for(int x=0;x<input.get_n_cols();x++){
float filtered_value = median_filter_pixel(input, y, x, window_size);
output_address->set_pixel(y,x,filtered_value);
}
}
pthread_exit( NULL );
}
