haader/image.h

#ifndef IMAGE_AF9FV02C
#define IMAGE_AF9FV02C

#include <vector>
#include <string>

namespace haader {

    class LdrHistogram {
        public:
            std::vector<unsigned int> m_bins;
            unsigned int m_max_freq;
    };

    // A low dynamic range image/photograph with an associated exposure time.
    class Image {
        friend class HdrImageStack;
        friend class HdrImage;

        public:
            Image();

            void to_string(std::string &s) const;

            bool read_from_file(const char *file_path);
            bool save_as_ppm_file(const char *file_path, bool ascii=false) const;

            LdrHistogram histogram() const;

            unsigned int get_width() const;
            unsigned int get_height() const;
            unsigned int get_components() const;
            bool has_equal_dimensions(const Image &other) const;
            double get_exposure_time() const;
            const unsigned char* get_const_image_data() const;
            unsigned char* get_image_data();

        private:
            std::vector<unsigned char> m_image_data;
            unsigned int m_width;
            unsigned int m_height;

            // Number of channels (usually 3 for RGB images)
            unsigned int m_components;

            // Exposure time in seconds
            double m_exposure_time;
    };

}

#endif // IMAGE_AF9FV02C