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      1 /*M///////////////////////////////////////////////////////////////////////////////////////
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      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 //                           License Agreement
     11 //                For Open Source Computer Vision Library
     12 //
     13 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
     14 // Copyright (C) 2009, Willow Garage Inc., all rights reserved.
     15 // Third party copyrights are property of their respective owners.
     16 //
     17 // Redistribution and use in source and binary forms, with or without modification,
     18 // are permitted provided that the following conditions are met:
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     20 //   * Redistribution's of source code must retain the above copyright notice,
     21 //     this list of conditions and the following disclaimer.
     22 //
     23 //   * Redistribution's in binary form must reproduce the above copyright notice,
     24 //     this list of conditions and the following disclaimer in the documentation
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     27 //   * The name of the copyright holders may not be used to endorse or promote products
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     30 // This software is provided by the copyright holders and contributors "as is" and
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     39 // the use of this software, even if advised of the possibility of such damage.
     40 //
     41 //M*/
     42 
     43 #ifndef _GRFMT_TIFF_H_
     44 #define _GRFMT_TIFF_H_
     45 
     46 #include "grfmt_base.hpp"
     47 
     48 namespace cv
     49 {
     50 
     51 // native simple TIFF codec
     52 enum TiffCompression
     53 {
     54     TIFF_UNCOMP = 1,
     55     TIFF_HUFFMAN = 2,
     56     TIFF_PACKBITS = 32773
     57 };
     58 
     59 enum TiffByteOrder
     60 {
     61     TIFF_ORDER_II = 0x4949,
     62     TIFF_ORDER_MM = 0x4d4d
     63 };
     64 
     65 
     66 enum  TiffTag
     67 {
     68     TIFF_TAG_WIDTH  = 256,
     69     TIFF_TAG_HEIGHT = 257,
     70     TIFF_TAG_BITS_PER_SAMPLE = 258,
     71     TIFF_TAG_COMPRESSION = 259,
     72     TIFF_TAG_PHOTOMETRIC = 262,
     73     TIFF_TAG_STRIP_OFFSETS = 273,
     74     TIFF_TAG_STRIP_COUNTS = 279,
     75     TIFF_TAG_SAMPLES_PER_PIXEL = 277,
     76     TIFF_TAG_ROWS_PER_STRIP = 278,
     77     TIFF_TAG_PLANAR_CONFIG = 284,
     78     TIFF_TAG_COLOR_MAP = 320
     79 };
     80 
     81 
     82 enum TiffFieldType
     83 {
     84     TIFF_TYPE_BYTE = 1,
     85     TIFF_TYPE_SHORT = 3,
     86     TIFF_TYPE_LONG = 4
     87 };
     88 
     89 
     90 #ifdef HAVE_TIFF
     91 
     92 // libtiff based TIFF codec
     93 
     94 class TiffDecoder : public BaseImageDecoder
     95 {
     96 public:
     97     TiffDecoder();
     98     virtual ~TiffDecoder();
     99 
    100     bool  readHeader();
    101     bool  readData( Mat& img );
    102     void  close();
    103     bool  nextPage();
    104 
    105     size_t signatureLength() const;
    106     bool checkSignature( const String& signature ) const;
    107     ImageDecoder newDecoder() const;
    108 
    109 protected:
    110     void* m_tif;
    111     int normalizeChannelsNumber(int channels) const;
    112     bool readHdrData(Mat& img);
    113     bool m_hdr;
    114 };
    115 
    116 #endif
    117 
    118 // ... and writer
    119 class TiffEncoder : public BaseImageEncoder
    120 {
    121 public:
    122     TiffEncoder();
    123     virtual ~TiffEncoder();
    124 
    125     bool isFormatSupported( int depth ) const;
    126 
    127     bool  write( const Mat& img, const std::vector<int>& params );
    128     ImageEncoder newEncoder() const;
    129 
    130 protected:
    131     void  writeTag( WLByteStream& strm, TiffTag tag,
    132                     TiffFieldType fieldType,
    133                     int count, int value );
    134 
    135     bool writeLibTiff( const Mat& img, const std::vector<int>& params );
    136     bool writeHdr( const Mat& img );
    137 };
    138 
    139 }
    140 
    141 #endif/*_GRFMT_TIFF_H_*/
    142