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#include <chrono>
#include <cstdio>
#include "nl_means.h"
#include "nl_means_auto_schedule.h"
#include "HalideBuffer.h"
#include "halide_benchmark.h"
#include "halide_image_io.h"
using namespace Halide::Runtime;
using namespace Halide::Tools;
int main(int argc, char **argv) {
if (argc < 7) {
printf("Usage: ./process input.png patch_size search_area sigma timing_iterations output.png\n"
"e.g.: ./process input.png 7 7 0.12 10 output.png\n");
return 0;
}
Buffer<float, 3> input = load_and_convert_image(argv[1]);
int patch_size = atoi(argv[2]);
int search_area = atoi(argv[3]);
float sigma = atof(argv[4]);
Buffer<float, 3> output(input.width(), input.height(), 3);
int timing_iterations = atoi(argv[5]);
nl_means(input, patch_size, search_area, sigma, output);
// Timing code
printf("Input size: %d by %d, patch size: %d, search area: %d, sigma: %f\n",
input.width(), input.height(), patch_size, search_area, sigma);
// Manually-tuned version
double min_t_manual = benchmark(timing_iterations, 1, [&]() {
nl_means(input, patch_size, search_area, sigma, output);
output.device_sync();
});
printf("Manually-tuned time: %gms\n", min_t_manual * 1e3);
// Auto-scheduled version
double min_t_auto = benchmark(timing_iterations, 1, [&]() {
nl_means_auto_schedule(input, patch_size, search_area, sigma, output);
output.device_sync();
});
printf("Auto-scheduled time: %gms\n", min_t_auto * 1e3);
convert_and_save_image(output, argv[6]);
printf("Success!\n");
return 0;
}
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