sharpening_filter.h

#ifndef SHARPENING_FILTER_H
#define SHARPENING_FILTER_H
 
#ifdef __cplusplus
#include <iostream>
#include <vector>
#include "../image.h"
#endif

namespace sharpening_filter {
inline std::vector<std::vector<int32_t>>
apply_sharpening_filter(const std::vector<std::vector<int32_t>>& image) {
    Image img(image);
    std::vector<std::vector<int32_t>> kernel = {{0, -1, 0}, {-1, 5, -1}, {0, -1, 0}};
    return img.apply_filter2d(kernel).get_2d_array();
}
} // namespace sharpening_filter
 
#endif