cimg2num.cpp

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#include "cimg2num.h"
 
#include <cstring>
 
#include "img2num.h"
#include "img2num/Error.h"
 
extern "C" {
 
void img2num_gaussian_blur_fft(uint8_t *image, size_t width, size_t height, double sigma) {
    img2num::clear_last_error_and_catch(img2num::gaussian_blur_fft, image, width, height, sigma);
}
 
void img2num_invert_image(uint8_t *image, int width, int height) {
    img2num::clear_last_error_and_catch(img2num::invert_image, image, width, height);
}
 
void img2num_threshold_image(uint8_t *ptr, const int width, const int height,
                             const int num_thresholds) {
    img2num::clear_last_error_and_catch(img2num::threshold_image, ptr, width, height,
                                        num_thresholds);
}
 
void img2num_black_threshold_image(uint8_t *ptr, const int width, const int height,
                                   const int num_thresholds) {
    img2num::clear_last_error_and_catch(img2num::black_threshold_image, ptr, width, height,
                                        num_thresholds);
}
 
void img2num_kmeans(const uint8_t *data, uint8_t *out_data, int32_t *out_labels,
                    const int32_t width, const int32_t height, const int32_t k,
                    const int32_t max_iter, const uint8_t color_space) {
    img2num::clear_last_error_and_catch(img2num::kmeans, data, out_data, out_labels, width, height,
                                        k, max_iter, color_space);
}
 
void img2num_bilateral_filter(uint8_t *image, size_t width, size_t height, double sigma_spatial,
                              double sigma_range, uint8_t color_space) {
    img2num::clear_last_error_and_catch(img2num::bilateral_filter, image, width, height,
                                        sigma_spatial, sigma_range, color_space);
}
 
char *img2num_labels_to_svg(const uint8_t *data, const int32_t *labels, const int width,
                            const int height, const int min_area) {
    char *result{nullptr};
    img2num::clear_last_error_and_catch(
        [&](const uint8_t *d, const int32_t *l, const int w, const int h, const int min_a) {
            std::string svg{img2num::labels_to_svg(d, l, w, h, min_a)};
            result = static_cast<char *>(std::malloc(svg.size() + 1));
            if (!result) {
                return;  // Allocation failed
            }
            std::memcpy(result, svg.c_str(), svg.size() + 1);
        },
        data, labels, width, height, min_area);
    return result;
}
}