defonMouseHover(event,x,y,flags,param):ifevent==cv2.EVENT_MOUSEMOVE:img=np.zeros((512,512,3),np.uint8)# 创建一个黑色图像cv2.circle(img,(x,y),10,(0,255,0),-1)# 在鼠标悬浮的位置绘制一个绿色圆cv2.imshow('image',img)cv2.namedWindow('image')cv2.setMouseCallback('image',onMouseHover)...
EVENT_RBUTTONUP = 5 中键弹起 3、应用 import cv2 import numpy as np def onmouse(event, x, y, flags, param): # 创建回调函数 if event == cv2.EVENT_LBUTTONDOWN: # 按下左键 # do somthing elif event == cv2.EVENT_MOUSEMOVE and flags == cv2.EVENT_FLAG_LBUTTON: # 当按下左键拖拽鼠...
# 定义鼠标事件回调函数 def on_mouse(event, x, y, flags, param): # 鼠标左键按下,抬起,双击 if event == cv2.EVENT_LBUTTONDOWN: print('Left button down at ({}, {})'.format(x, y)) elif event == cv2.EVENT_LBUTTONUP: print('Left button up at ({}, {})'.format(x, y)) elif...
cv2.namedWindow("new")defdrawxxx(event,x,y,flags,param):#鼠标事件回调函数#参数 (事件,x轴位置,y轴位置,标记,属性)"""event: EVENT_MOUSEMOVE 0 #滑动 EVENT_LBUTTONDOWN 1 #左键点击 EVENT_RBUTTONDOWN 2 #右键点击 EVENT_MBUTTONDOWN 3 #中键点击 EVENT_LBUTTONUP 4 #左键放开 EVENT_RBUTTONUP 5...
draw_rects.left_button_down =Truedraw_rects.current_rect.t1 = (x,y)ifdraw_rects.left_button_downandevent == cv2.EVENT_MOUSEMOVE: draw_rects.current_rect.br = draw_rects.shrink_point(x,y) draw_rects.reset_image() draw_rects.draw() ...
if event == cv.EVENT_LBUTTONDOWN: drawing = True ix,iy = x,y elif event == cv.EVENT_MOUSEMOVE: if drawing == True: if mode == True: cv.rectangle(img,(ix,iy),(x,y),(0,255,0),-1) else: cv.circle(img,(x,y),5,(0,0,255),-1) ...
MouseEventTypes Static EVENT_MOUSEMOVE := 0 Static EVENT_LBUTTONDOWN := 1 Static EVENT_RBUTTONDOWN := 2 Static EVENT_MBUTTONDOWN := 3 Static EVENT_LBUTTONUP := 4 Static EVENT_RBUTTONUP := 5 Static EVENT_MBUTTONUP := 6 Static EVENT_LBUTTONDBLCLK := 7 Static EVENT_RBUTTONDBLCLK := 8 St...
defonmouse(event,x,y,flags,param):# 标准鼠标交互函数# if event==cv2.EVENT_LBUTTONDBLCLK : #当鼠标点击时# print("y=",y), print("x=",x), print(img[y,x],"\n") #显示鼠标所在像素的数值,注意像素表示方法和坐标位置的不同ifevent==cv2.EVENT_MOUSEMOVE:# 当鼠标移动时print("y=",y,"x...
EVENT_MOUSEMOVE: print('Moving at ({}, {})'.format(x, y)) # 为指定的窗口绑定自定义的回调函数 cv2.namedWindow('Honeymoon Island') cv2.setMouseCallback('Honeymoon Island', on_mouse) 目录 6.4.3 代码:物体检测标注的小工具 基于上面两小节的基本使用,就能和OpenCV的基本绘图功能就能实现一个超级...
# 全局变量 drawing = False ix, iy = -1, -1 # 鼠标回调函数 def draw_circle(event, x, y, flags, param): global ix, iy, drawing, mask if event == cv2.EVENT_LBUTTONDOWN: drawing = True ix, iy = x, y elif event == cv2.EVENT_MOUSEMOVE: if drawing == True: cv2.circle(mask...