A.I.M.S


scaledcoding.h
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33 
34 #ifndef AIMS_IO_SCALEDCODING_H
35 #define AIMS_IO_SCALEDCODING_H
36 
38 
39 namespace carto
40 {
41  template <typename T> class Volume;
42 }
43 
44 template <typename T> class AimsData;
45 
46 
47 namespace aims
48 {
49 
54  template <typename T>
55  bool canEncodeAsScaledS16( const carto::Volume<T> & vol, float & slope,
56  float & offset, bool enableoffset = true,
57  double *maxerr = 0 );
58 
59  // declare specializations that actually do something
60  template <>
61  bool canEncodeAsScaledS16( const carto::Volume<float> & vol, float & slope,
62  float & offset, bool enableoffset, double * );
63  template <>
64  bool canEncodeAsScaledS16( const carto::Volume<double> & vol, float & slope,
65  float & offset, bool enableoffset, double * );
66 
67  // default implementation always fails
68  template <typename T>
69  inline bool canEncodeAsScaledS16( const carto::Volume<T> &, float &,
70  float &, bool, double * )
71  {
72  return false;
73  }
74 
75  template <typename INP, typename OUTP>
77  {
78  public :
79 
83  static soma::ScaledEncodingInfo info( const AimsData<INP> & thing );
84 
86  AimsData<OUTP> & out );
87  };
88 }
89 
90 #endif
91 
92 
93 
static soma::ScaledEncodingInfo rescale(const AimsData< INP > &in, AimsData< OUTP > &out)
static soma::ScaledEncodingInfo info(const AimsData< INP > &thing)
Get the slope, offset and maximum error to encode a volume of float or double using an integer type...
bool canEncodeAsScaledS16(const carto::Volume< T > &vol, float &slope, float &offset, bool enableoffset=true, double *maxerr=0)
Checks if a volume can be encoded as 16 bit signed ints with a scale factor and optionally an offset...
Definition: scaledcoding.h:69