OpenCV 4.5.3(日本語機械翻訳)
saturate.hpp
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44
45 #ifndef OPENCV_CORE_SATURATE_HPP
46 #define OPENCV_CORE_SATURATE_HPP
47
48 #include "opencv2/core/cvdef.h"
49 #include "opencv2/core/fast_math.hpp"
50
51 namespace cv
52{
53
56
58
80 template<typename _Tp> static inline _Tp saturate_cast(uchar v) { return _Tp(v); }
82 template<typename _Tp> static inline _Tp saturate_cast(schar v) { return _Tp(v); }
84 template<typename _Tp> static inline _Tp saturate_cast(ushort v) { return _Tp(v); }
86 template<typename _Tp> static inline _Tp saturate_cast(short v) { return _Tp(v); }
88 template<typename _Tp> static inline _Tp saturate_cast(unsigned v) { return _Tp(v); }
90 template<typename _Tp> static inline _Tp saturate_cast(int v) { return _Tp(v); }
92 template<typename _Tp> static inline _Tp saturate_cast(float v) { return _Tp(v); }
94 template<typename _Tp> static inline _Tp saturate_cast(double v) { return _Tp(v); }
96 template<typename _Tp> static inline _Tp saturate_cast(int64 v) { return _Tp(v); }
98 template<typename _Tp> static inline _Tp saturate_cast(uint64 v) { return _Tp(v); }
99
100 template<> inline uchar saturate_cast<uchar>(schar v) { return (uchar)std::max((int)v, 0); }
101 template<> inline uchar saturate_cast<uchar>(ushort v) { return (uchar)std::min((unsigned)v, (unsigned)UCHAR_MAX); }
102 template<> inline uchar saturate_cast<uchar>(int v) { return (uchar)((unsigned)v <= UCHAR_MAX ? v : v > 0 ? UCHAR_MAX : 0); }
103 template<> inline uchar saturate_cast<uchar>(short v) { return saturate_cast<uchar>((int)v); }
104 template<> inline uchar saturate_cast<uchar>(unsigned v) { return (uchar)std::min(v, (unsigned)UCHAR_MAX); }
105 template<> inline uchar saturate_cast<uchar>(float v) { int iv = cvRound(v); return saturate_cast<uchar>(iv); }
106 template<> inline uchar saturate_cast<uchar>(double v) { int iv = cvRound(v); return saturate_cast<uchar>(iv); }
107 template<> inline uchar saturate_cast<uchar>(int64 v) { return (uchar)((uint64)v <= (uint64)UCHAR_MAX ? v : v > 0 ? UCHAR_MAX : 0); }
108 template<> inline uchar saturate_cast<uchar>(uint64 v) { return (uchar)std::min(v, (uint64)UCHAR_MAX); }
109
110 template<> inline schar saturate_cast<schar>(uchar v) { return (schar)std::min((int)v, SCHAR_MAX); }
111 template<> inline schar saturate_cast<schar>(ushort v) { return (schar)std::min((unsigned)v, (unsigned)SCHAR_MAX); }
112 template<> inline schar saturate_cast<schar>(int v) { return (schar)((unsigned)(v-SCHAR_MIN) <= (unsigned)UCHAR_MAX ? v : v > 0 ? SCHAR_MAX : SCHAR_MIN); }
113 template<> inline schar saturate_cast<schar>(short v) { return saturate_cast<schar>((int)v); }
114 template<> inline schar saturate_cast<schar>(unsigned v) { return (schar)std::min(v, (unsigned)SCHAR_MAX); }
115 template<> inline schar saturate_cast<schar>(float v) { int iv = cvRound(v); return saturate_cast<schar>(iv); }
116 template<> inline schar saturate_cast<schar>(double v) { int iv = cvRound(v); return saturate_cast<schar>(iv); }
117 template<> inline schar saturate_cast<schar>(int64 v) { return (schar)((uint64)((int64)v-SCHAR_MIN) <= (uint64)UCHAR_MAX ? v : v > 0 ? SCHAR_MAX : SCHAR_MIN); }
118 template<> inline schar saturate_cast<schar>(uint64 v) { return (schar)std::min(v, (uint64)SCHAR_MAX); }
119
120 template<> inline ushort saturate_cast<ushort>(schar v) { return (ushort)std::max((int)v, 0); }
121 template<> inline ushort saturate_cast<ushort>(short v) { return (ushort)std::max((int)v, 0); }
122 template<> inline ushort saturate_cast<ushort>(int v) { return (ushort)((unsigned)v <= (unsigned)USHRT_MAX ? v : v > 0 ? USHRT_MAX : 0); }
123 template<> inline ushort saturate_cast<ushort>(unsigned v) { return (ushort)std::min(v, (unsigned)USHRT_MAX); }
124 template<> inline ushort saturate_cast<ushort>(float v) { int iv = cvRound(v); return saturate_cast<ushort>(iv); }
125 template<> inline ushort saturate_cast<ushort>(double v) { int iv = cvRound(v); return saturate_cast<ushort>(iv); }
126 template<> inline ushort saturate_cast<ushort>(int64 v) { return (ushort)((uint64)v <= (uint64)USHRT_MAX ? v : v > 0 ? USHRT_MAX : 0); }
127 template<> inline ushort saturate_cast<ushort>(uint64 v) { return (ushort)std::min(v, (uint64)USHRT_MAX); }
128
129 template<> inline short saturate_cast<short>(ushort v) { return (short)std::min((int)v, SHRT_MAX); }
130 template<> inline short saturate_cast<short>(int v) { return (short)((unsigned)(v - SHRT_MIN) <= (unsigned)USHRT_MAX ? v : v > 0 ? SHRT_MAX : SHRT_MIN); }
131 template<> inline short saturate_cast<short>(unsigned v) { return (short)std::min(v, (unsigned)SHRT_MAX); }
132 template<> inline short saturate_cast<short>(float v) { int iv = cvRound(v); return saturate_cast<short>(iv); }
133 template<> inline short saturate_cast<short>(double v) { int iv = cvRound(v); return saturate_cast<short>(iv); }
134 template<> inline short saturate_cast<short>(int64 v) { return (short)((uint64)((int64)v - SHRT_MIN) <= (uint64)USHRT_MAX ? v : v > 0 ? SHRT_MAX : SHRT_MIN); }
135 template<> inline short saturate_cast<short>(uint64 v) { return (short)std::min(v, (uint64)SHRT_MAX); }
136
137 template<> inline int saturate_cast<int>(unsigned v) { return (int)std::min(v, (unsigned)INT_MAX); }
138 template<> inline int saturate_cast<int>(int64 v) { return (int)((uint64)(v - INT_MIN) <= (uint64)UINT_MAX ? v : v > 0 ? INT_MAX : INT_MIN); }
139 template<> inline int saturate_cast<int>(uint64 v) { return (int)std::min(v, (uint64)INT_MAX); }
140 template<> inline int saturate_cast<int>(float v) { return cvRound(v); }
141 template<> inline int saturate_cast<int>(double v) { return cvRound(v); }
142
143 template<> inline unsigned saturate_cast<unsigned>(schar v) { return (unsigned)std::max(v, (schar)0); }
144 template<> inline unsigned saturate_cast<unsigned>(short v) { return (unsigned)std::max(v, (short)0); }
145 template<> inline unsigned saturate_cast<unsigned>(int v) { return (unsigned)std::max(v, (int)0); }
146 template<> inline unsigned saturate_cast<unsigned>(int64 v) { return (unsigned)((uint64)v <= (uint64)UINT_MAX ? v : v > 0 ? UINT_MAX : 0); }
147 template<> inline unsigned saturate_cast<unsigned>(uint64 v) { return (unsigned)std::min(v, (uint64)UINT_MAX); }
148 // we intentionally do not clip negative numbers, to make -1 become 0xffffffff etc.
149 template<> inline unsigned saturate_cast<unsigned>(float v) { return static_cast< unsigned >(cvRound(v)); }
150 template<> inline unsigned saturate_cast<unsigned>(double v) { return static_cast< unsigned >(cvRound(v)); }
151
152 template<> inline uint64 saturate_cast<uint64>(schar v) { return (uint64)std::max(v, (schar)0); }
153 template<> inline uint64 saturate_cast<uint64>(short v) { return (uint64)std::max(v, (short)0); }
154 template<> inline uint64 saturate_cast<uint64>(int v) { return (uint64)std::max(v, (int)0); }
155 template<> inline uint64 saturate_cast<uint64>(int64 v) { return (uint64)std::max(v, (int64)0); }
156
157 template<> inline int64 saturate_cast<int64>(uint64 v) { return (int64)std::min(v, (uint64)LLONG_MAX); }
158
160 template<typename _Tp> static inline _Tp saturate_cast(float16_t v) { return saturate_cast<_Tp>((float)v); }
161
162 // in theory, we could use a LUT for 8u/8s->16f conversion,
163 // but with hardware support for FP32->FP16 conversion the current approach is preferable
164 template<> inline float16_t saturate_cast<float16_t>(uchar v) { return float16_t((float)v); }
165 template<> inline float16_t saturate_cast<float16_t>(schar v) { return float16_t((float)v); }
166 template<> inline float16_t saturate_cast<float16_t>(ushort v) { return float16_t((float)v); }
167 template<> inline float16_t saturate_cast<float16_t>(short v) { return float16_t((float)v); }
168 template<> inline float16_t saturate_cast<float16_t>(unsigned v){ return float16_t((float)v); }
169 template<> inline float16_t saturate_cast<float16_t>(int v) { return float16_t((float)v); }
170 template<> inline float16_t saturate_cast<float16_t>(uint64 v) { return float16_t((float)v); }
171 template<> inline float16_t saturate_cast<float16_t>(int64 v) { return float16_t((float)v); }
172 template<> inline float16_t saturate_cast<float16_t>(float v) { return float16_t(v); }
173 template<> inline float16_t saturate_cast<float16_t>(double v) { return float16_t((float)v); }
174
176
177} // cv
178
179 #endif // OPENCV_CORE_SATURATE_HPP
cv::max
CV_EXPORTS_W void max(InputArray src1, InputArray src2, OutputArray dst)
Calculates per-element maximum of two arrays or an array and a scalar.
cv::min
CV_EXPORTS_W void min(InputArray src1, InputArray src2, OutputArray dst)
Calculates per-element minimum of two arrays or an array and a scalar.
cvRound
CV_INLINE int cvRound(double value)
Rounds floating-point number to the nearest integer
Definition: fast_math.hpp:200
cv::saturate_cast
static _Tp saturate_cast(uchar v)
Template function for accurate conversion from one primitive type to another.
Definition: saturate.hpp:80
cv
"black box" representation of the file storage associated with a file on disk.
Definition: aruco.hpp:75
構築: doxygen 1.9.2