// Copyright (C) 2009 Davis E. King (davis@dlib.net) // License: Boost Software License See LICENSE.txt for the full license. #ifndef DLIB_CvIMAGE_H_ #define DLIB_CvIMAGE_H_ #include "cv_image_abstract.h" #include "../algs.h" namespace dlib { template < typename pixel_type > class cv_image { public: typedef pixel_type type; cv_image (const IplImage* img) { check_image_type(img); _data = img->imageData; _widthStep = img->widthStep; _nr = img->height; _nc = img->width; } cv_image() : _data(0), _widthStep(0), _nr(0), _nc(0) {} unsigned long size () const { return static_cast<unsigned long>(_nr*_nc); } inline pixel_type* operator[](const long row ) { // make sure requires clause is not broken DLIB_ASSERT(0 <= row && row < nr(), "\tpixel_type* operator[](row)" << "\n\t you have asked for an out of bounds row " << "\n\t row: " << row << "\n\t nr(): " << nr() << "\n\t this: " << this ); return reinterpret_cast<pixel_type*>( _data + _widthStep*row); } inline const pixel_type* operator[](const long row ) const { // make sure requires clause is not broken DLIB_ASSERT(0 <= row && row < nr(), "\tconst pixel_type* operator[](row)" << "\n\t you have asked for an out of bounds row " << "\n\t row: " << row << "\n\t nr(): " << nr() << "\n\t this: " << this ); return reinterpret_cast<const pixel_type*>( _data + _widthStep*row); } long nr() const { return _nr; } long nc() const { return _nc; } cv_image& operator=( const cv_image& item) { _data = item._data; _widthStep = item._widthStep; _nr = item._nr; _nc = item._nc; return *this; } cv_image& operator=( const IplImage* img) { check_image_type(img); _data = img->imageData; _widthStep = img->widthStep; _nr = img->height; _nc = img->width; return *this; } private: inline void check_image_type (const IplImage* img) const { DLIB_ASSERT( img->dataOrder == 0, "Only interleaved color channels are supported with cv_image"); DLIB_ASSERT((img->depth&0xFF)/8*img->nChannels == sizeof(pixel_type), "The pixel type you gave doesn't match the size of pixel used by the open cv image struct"); } char* _data; long _widthStep; long _nr; long _nc; }; } #endif // DLIB_CvIMAGE_H_