1 /*M/////////////////////////////////////////////////////////////////////////////////////// 2 // 3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 4 // 5 // By downloading, copying, installing or using the software you agree to this license. 6 // If you do not agree to this license, do not download, install, 7 // copy or use the software. 8 // 9 // 10 // Intel License Agreement 11 // For Open Source Computer Vision Library 12 // 13 // Copyright (C) 2000, Intel Corporation, all rights reserved. 14 // Third party copyrights are property of their respective owners. 15 // 16 // Redistribution and use in source and binary forms, with or without modification, 17 // are permitted provided that the following conditions are met: 18 // 19 // * Redistribution's of source code must retain the above copyright notice, 20 // this list of conditions and the following disclaimer. 21 // 22 // * Redistribution's in binary form must reproduce the above copyright notice, 23 // this list of conditions and the following disclaimer in the documentation 24 // and/or other materials provided with the distribution. 25 // 26 // * The name of Intel Corporation may not be used to endorse or promote products 27 // derived from this software without specific prior written permission. 28 // 29 // This software is provided by the copyright holders and contributors "as is" and 30 // any express or implied warranties, including, but not limited to, the implied 31 // warranties of merchantability and fitness for a particular purpose are disclaimed. 32 // In no event shall the Intel Corporation or contributors be liable for any direct, 33 // indirect, incidental, special, exemplary, or consequential damages 34 // (including, but not limited to, procurement of substitute goods or services; 35 // loss of use, data, or profits; or business interruption) however caused 36 // and on any theory of liability, whether in contract, strict liability, 37 // or tort (including negligence or otherwise) arising in any way out of 38 // the use of this software, even if advised of the possibility of such damage. 39 // 40 //M*/ 41 42 #ifndef __GRFMT_GDAL_HPP__ 43 #define __GRFMT_GDAL_HPP__ 44 45 /// OpenCV FMT Base Type 46 #include "grfmt_base.hpp" 47 48 /// Macro to make sure we specified GDAL in CMake 49 #ifdef HAVE_GDAL 50 51 /// C++ Libraries 52 #include <iostream> 53 54 /// Geospatial Data Abstraction Library 55 #include <cpl_conv.h> 56 #include <gdal_priv.h> 57 #include <gdal.h> 58 59 60 /// Start of CV Namespace 61 namespace cv { 62 63 /** 64 * Convert GDAL Pixel Range to OpenCV Pixel Range 65 */ 66 double range_cast( const GDALDataType& gdalType, 67 const int& cvDepth, 68 const double& value ); 69 70 /** 71 * Convert GDAL Palette Interpretation to OpenCV Pixel Type 72 */ 73 int gdalPaletteInterpretation2OpenCV( GDALPaletteInterp const& paletteInterp, 74 GDALDataType const& gdalType ); 75 76 /** 77 * Convert a GDAL Raster Type to OpenCV Type 78 */ 79 int gdal2opencv( const GDALDataType& gdalType, const int& channels ); 80 81 /** 82 * Write an image to pixel 83 */ 84 void write_pixel( const double& pixelValue, 85 GDALDataType const& gdalType, 86 const int& gdalChannels, 87 Mat& image, 88 const int& row, 89 const int& col, 90 const int& channel ); 91 92 /** 93 * Write a color table pixel to the image 94 */ 95 void write_ctable_pixel( const double& pixelValue, 96 const GDALDataType& gdalType, 97 const GDALColorTable* gdalColorTable, 98 Mat& image, 99 const int& y, 100 const int& x, 101 const int& c ); 102 103 /** 104 * Loader for GDAL 105 */ 106 class GdalDecoder : public BaseImageDecoder{ 107 108 public: 109 110 /** 111 * Default Constructor 112 */ 113 GdalDecoder(); 114 115 /** 116 * Destructor 117 */ 118 ~GdalDecoder(); 119 120 /** 121 * Read image data 122 */ 123 bool readData( Mat& img ); 124 125 /** 126 * Read the image header 127 */ 128 bool readHeader(); 129 130 /** 131 * Close the module 132 */ 133 void close(); 134 135 /** 136 * Create a new decoder 137 */ 138 ImageDecoder newDecoder() const; 139 140 /** 141 * Test the file signature 142 * 143 * In general, this should be avoided as the user should specifically request GDAL. 144 * The reason is that GDAL tends to overlap with other image formats and it is probably 145 * safer to use other formats first. 146 */ 147 virtual bool checkSignature( const String& signature ) const; 148 149 protected: 150 151 /// GDAL Dataset 152 GDALDataset* m_dataset; 153 154 /// GDAL Driver 155 GDALDriver* m_driver; 156 157 /// Check if we are reading from a color table 158 bool hasColorTable; 159 160 }; /// End of GdalDecoder Class 161 162 } /// End of Namespace cv 163 164 #endif/*HAVE_GDAL*/ 165 166 #endif/*__GRFMT_GDAL_HPP__*/ 167
