DVision::ImageFunctions Class Reference

List of all members.

Static Public Member Functions
static cv::Mat	getPatch (const cv::Mat &im, const cv::KeyPoint &kp, int final_size=-1, bool rectifyOrientation=true, bool useCartesianAngle=false)
static cv::Mat	getPatch (const cv::Mat &im, const cv::Point2f &pt, unsigned int patch_size)

---

Member Function Documentation

cv::Mat ImageFunctions::getPatch	(	const cv::Mat &	im,
		const cv::Point2f &	pt,
		unsigned int	patch_size
	)			[static]

Extracts a patch from an image. The patch is cropped if it goes beyond the image size

Parameters:

	im	image to extract the patch from
	pt	center of the patch in im
	patch_size	number of rows (and cols) of the patch extracted

cv::Mat ImageFunctions::getPatch	(	const cv::Mat &	im,
		const cv::KeyPoint &	kp,
		int	final_size = -1,
		bool	rectifyOrientation = true,
		bool	useCartesianAngle = false
	)			[static]

Extracts the patch described by a keypoint from an image. The patch is cropped if it goes beyond the image size.

Parameters:

	im	image to extract the patch from
	kp	keypoint with the coordinates, the size and the angle of the patch
	final_size	if given, the patch is resized to this size. If not given, the size of the keypoint is used as a diameter.
	rectifyOrientation	iif true, the patch is rotated according to the angle of the keypoint (if it is not -1)
	useCartesianAngle	if true, the angle of the keypoints is assumed to be in Cartesian axis. If false, the vision reference is used instead (X points right, Y points up)

Note:

OpenCV SURF keypoints use Cartesian coordinates

OpenCV ORB keypoints use vision coordinates

---

The documentation for this class was generated from the following files:

• ImageFunctions.h
• ImageFunctions.cpp