详细描述

The HistogramIntersection kernel operating on realvalued vectors computes the histogram intersection distance between sets of histograms. Note: the current implementation assumes positive values for the histograms, and input vectors should sum to 1.

It is defined as

$k({\bf x},({\bf x'})= \sum_{i=0}^{l} min(x_i,x'_i)$

在文件HistogramIntersectionKernel.h第31行定义。

继承图，类CHistogramIntersectionKernel

[图例]

所有成员的列表。

公有成员
	CHistogramIntersectionKernel (void)
	CHistogramIntersectionKernel (int32_t size)
	CHistogramIntersectionKernel (CSimpleFeatures< float64_t > l, CSimpleFeatures< float64_t > r, int32_t size)
virtual	~CHistogramIntersectionKernel ()
virtual bool	init (CFeatures l, CFeatures r)
virtual EKernelType	get_kernel_type ()
virtual const char *	get_name () const
保护成员
virtual float64_t	compute (int32_t idx_a, int32_t idx_b)

构造及析构函数文档

CHistogramIntersectionKernel ( void )

default constructor

在文件HistogramIntersectionKernel.cpp第19行定义。

CHistogramIntersectionKernel ( int32_t size )

constructor

参数:

size	cache size
width	width

在文件HistogramIntersectionKernel.cpp第26行定义。

CHistogramIntersectionKernel	(	CSimpleFeatures< float64_t > *	l,
		CSimpleFeatures< float64_t > *	r,
		int32_t	size
	)

constructor

参数:

l	features of left-hand side
r	features of right-hand side
width	width
size	cache size

在文件HistogramIntersectionKernel.cpp第31行定义。

~CHistogramIntersectionKernel ( ) [virtual]

在文件HistogramIntersectionKernel.cpp第38行定义。

成员函数文档

float64_t compute	(	int32_t	idx_a,
		int32_t	idx_b
	)		`[protected, virtual]`

compute kernel function for features a and b idx_{a,b} denote the index of the feature vectors in the corresponding feature object

参数:

idx_a	index a
idx_b	index b

返回:: computed kernel function at indices a,b

重载CDotKernel。

在文件HistogramIntersectionKernel.cpp第50行定义。

virtual EKernelType get_kernel_type ( ) [virtual]

return what type of kernel we are

返回:: kernel type HISTOGRAMINTERSECTION

实现了CDotKernel。

在文件HistogramIntersectionKernel.h第68行定义。

virtual const char* get_name ( void ) const [virtual]

return the kernel's name

返回:: name HistogramIntersection

重载CDotKernel。

在文件HistogramIntersectionKernel.h第74行定义。

bool init	(	CFeatures *	l,
		CFeatures *	r
	)		`[virtual]`

initialize kernel

参数:

l	features of left-hand side
r	features of right-hand side

返回:: if initializing was successful

重载CDotKernel。

在文件HistogramIntersectionKernel.cpp第43行定义。

该类的文档由以下文件生成：

详细描述

公有成员

保护成员

构造及析构函数文档

成员函数文档