utils.hpp

//
// Created by Nicola Pierazzo on 21/10/15.
//

#ifndef IMGUTILS_UTILS_HPP
#define IMGUTILS_UTILS_HPP

#include "Image.hpp"
#include <string>
#include <vector>

namespace imgutils {

std::pair<int, int> ComputeTiling(int rows, int columns, int tiles);
std::vector<Image> SplitTiles(const Image &src, int pad_before, int pad_after,
                              std::pair<int, int> tiling);
Image MergeTiles(const std::vector<std::pair<Image, Image>> &src,
                       std::pair<int, int> shape, int pad_before, int pad_after,
                       std::pair<int, int> tiling);
void dct_inplace(Image &img);
void idct_inplace(Image &img);
std::vector<Image> decompose(const Image &img, int levels);
Image recompose(const std::vector<Image> &pyramid, float recompose_factor);

}  // namespace imgutils

#endif //IMGUTILS_UTILS_HPP