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Made pyramid_down<1> equivalent to pyramid_disable.

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This commit is contained in:
Davis King 2013-10-05 10:29:48 -04:00
parent cb0bbee68b
commit dc068968c3
2 changed files with 7 additions and 2 deletions
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5
dlib/image_transforms/image_pyramid.h
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@ -782,7 +782,7 @@ namespace dlib
{ {
public: public:
COMPILE_TIME_ASSERT(N > 1); COMPILE_TIME_ASSERT(N > 0);
template <typename T> template <typename T>
vector<double,2> point_down ( vector<double,2> point_down (
@ -888,6 +888,9 @@ namespace dlib
} }
}; };
template <>
class pyramid_down<1> : public pyramid_disable {};
template <> template <>
class pyramid_down<2> : public dlib::impl::pyramid_down_2_1 {}; class pyramid_down<2> : public dlib::impl::pyramid_down_2_1 {};

4
dlib/image_transforms/image_pyramid_abstract.h
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@ -17,12 +17,14 @@ namespace dlib
{ {
/*! /*!
REQUIREMENTS ON N REQUIREMENTS ON N
N > 1 N > 0
WHAT THIS OBJECT REPRESENTS WHAT THIS OBJECT REPRESENTS
This is a simple functor to help create image pyramids. In particular, it This is a simple functor to help create image pyramids. In particular, it
downsamples images at a ratio of N to N-1. downsamples images at a ratio of N to N-1.
Note that setting N to 1 means that this object functions like
pyramid_disable (defined at the bottom of this file).
WARNING, when mapping rectangles from one layer of a pyramid WARNING, when mapping rectangles from one layer of a pyramid
to another you might end up with rectangles which extend slightly to another you might end up with rectangles which extend slightly