使用pythonopenCV实现绘画板-创新互联
今天就跟大家聊聊有关使用python openCV实现绘画板,可能很多人都不太了解,为了让大家更加了解,小编给大家总结了以下内容,希望大家根据这篇文章可以有所收获。
创新互联建站始终坚持【策划先行,效果至上】的经营理念,通过多达10多年累计超上千家客户的网站建设总结了一套系统有效的推广解决方案,现已广泛运用于各行各业的客户,其中包括:LED显示屏等企业,备受客户夸奖。import numpy as np import cv2 def nothing(x): pass cv2.namedWindow('image') img = np.zeros((512,512,3),np.uint8) cv2.createTrackbar('R','image',0,255,nothing) cv2.createTrackbar('G','image',0,255,nothing) cv2.createTrackbar('B','image',0,255,nothing) drawing = False mode = True ix,iy = -1,-1 def drawing_fragment(event,x,y,flags,param): r = cv2.getTrackbarPos('R','image') g = cv2.getTrackbarPos('G','image') b = cv2.getTrackbarPos('B','image') color = (b,g,r) global drawing,ix,iy,mode if event == cv2.EVENT_LBUTTONDOWN: drawing = True ix = x iy = y elif event == cv2.EVENT_MOUSEMOVE: if drawing: if mode: cv2.rectangle(img,(ix,iy),(x,y),color,-1) else: cv2.circle(img,(x,y),5,color,-1) elif event == cv2.EVENT_LBUTTONUP: drawing = False cv2.setMouseCallback('image',drawing_fragment) while True: cv2.imshow('image',img) k = cv2.waitKey(2) if k == 27: break elif k == ord('q'): mode = not mode cv2.destroyAllWindows()
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