matchTemplate

Template Matching. More...

Functions
AFAPI array	matchTemplate (const array &searchImg, const array &templateImg, const matchType mType=AF_SAD)
	C++ Interface for image template matching. More...
AFAPI af_err	af_match_template (af_array *out, const af_array search_img, const af_array template_img, const af_match_type m_type)
	C Interface for image template matching. More...

Detailed Description

Template Matching.

Template matching is an image processing technique to find small patches of an image which match a given template image. A more in depth discussion on the topic can be found here.

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Template matching is an image processing technique to find small patches of an image which match a given template image. Currently, this function doesn't support the following three metrics yet.

• AF_NCC
• AF_ZNCC
• AF_SHD

A more in depth discussion about template matching can be found here.

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Function Documentation

AFAPI af_err af_match_template	(	af_array *	out,
		const af_array	search_img,
		const af_array	template_img,
		const af_match_type	m_type
	)

C Interface for image template matching.

Parameters

[out]	out	will have disparity values for the window starting at corresponding pixel position
[in]	search_img	is an array with image data
[in]	template_img	is the template we are looking for in the image
[in]	m_type	is metric that should be used to calculate the disparity between window in the image and the template image. It can be one of the values defined by the enum af_match_type

Returns

AF_SUCCESS if disparity metric is computed successfully, otherwise an appropriate error code is returned.

Note

If search_img is 3d array, a batch operation will be performed.

AFAPI array af::matchTemplate	(	const array &	searchImg,
		const array &	templateImg,
		const matchType	mType = AF_SAD
	)

C++ Interface for image template matching.

Parameters

[in]	searchImg	is an array with image data
[in]	templateImg	is the template we are looking for in the image
[in]	mType	is metric that should be used to calculate the disparity between window in the image and the template image. It can be one of the values defined by the enum af_match_type

Returns

array with disparity values for the window starting at corresponding pixel position

Note

If search_img is 3d array, a batch operation will be performed.

Examples:

computer_vision/matching.cpp.