init - 初始化项目

modules/core/misc/objc/common/KeyPoint.h

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+//
+//  KeyPoint.h
+//
+//  Created by Giles Payne on 2019/10/08.
+//
+
+#pragma once
+
+#ifdef __cplusplus
+#import "opencv2/core.hpp"
+#else
+#define CV_EXPORTS
+#endif
+
+#import <Foundation/Foundation.h>
+
+@class Point2f;
+
+NS_ASSUME_NONNULL_BEGIN
+/**
+*  Object representing a point feature found by one of many available keypoint detectors, such as Harris corner detector, FAST, StarDetector, SURF, SIFT etc.
+*/
+CV_EXPORTS @interface KeyPoint : NSObject
+
+#pragma mark - Properties
+
+/**
+* Coordinates of the keypoint.
+*/
+@property Point2f* pt;
+
+/**
+* Diameter of the useful keypoint adjacent area.
+*/
+@property float size;
+
+/**
+* Computed orientation of the keypoint (-1 if not applicable).
+*/
+@property float angle;
+
+/**
+* The response, by which the strongest keypoints have been selected. Can
+* be used for further sorting or subsampling.
+*/
+@property float response;
+
+/**
+* Octave (pyramid layer), from which the keypoint has been extracted.
+*/
+@property int octave;
+
+/**
+* Object ID, that can be used to cluster keypoints by an object they
+* belong to.
+*/
+@property int classId;
+
+#ifdef __cplusplus
+@property(readonly) cv::KeyPoint& nativeRef;
+#endif
+
+#pragma mark - Constructors
+
+- (instancetype)init;
+- (instancetype)initWithX:(float)x y:(float)y size:(float)size angle:(float)angle response:(float)response octave:(int)octave classId:(int)classId;
+- (instancetype)initWithX:(float)x y:(float)y size:(float)size angle:(float)angle response:(float)response octave:(int)octave;
+- (instancetype)initWithX:(float)x y:(float)y size:(float)size angle:(float)angle response:(float)response;
+- (instancetype)initWithX:(float)x y:(float)y size:(float)size angle:(float)angle;
+- (instancetype)initWithX:(float)x y:(float)y size:(float)size;
+#ifdef __cplusplus
++ (instancetype)fromNative:(cv::KeyPoint&)keyPoint;
+#endif
+
+#pragma mark - Common Methods
+
+/**
+* Clone object
+*/
+- (KeyPoint*)clone;
+
+/**
+* Compare for equality
+* @param other Object to compare
+*/
+- (BOOL)isEqual:(nullable id)other;
+
+/**
+* Calculate hash value for this object
+*/
+- (NSUInteger)hash;
+
+/**
+* Returns a string that describes the contents of the object
+*/
+- (NSString*)description;
+
+@end
+
+NS_ASSUME_NONNULL_END