opencv文字与图片的绘制

文字绘制

import cv2 import numpy as np newImageInfo = (500,500,3) dst = np.zeros(newImageInfo,np.uint8) cv2.rectangle(dst,(50,100),(200,300),(255,0,0),1) # 目标图片，左上角起始位置，右下角起始位置， 颜色，填充类型（填满，线框宽度） font = cv2.FONT_HERSHEY_SIMPLEX cv2.putText(dst,"this is box",(100,300),font,1,(200,100,255),2,cv2.LINE_AA) # 目标图片，文字内容，文字位置坐标，字体，字体大小，文字颜色，字体的粗细信息，字体线条的类型 cv2.imshow("dst",dst) cv2.waitKey()

图片绘制：

import cv2 import numpy as np newImageInfo = (500,500,3) dst = np.zeros(newImageInfo,np.uint8) img = cv2.imread(r"C:\Users\lenovo\Desktop\python\python_vision\image.jpg",1) imgresize = cv2.resize(img,(300,200)) for i in range(0,200): for j in range(0,300): dst[i+100,j+100] = imgresize[i,j] cv2.imshow("imgresize",imgresize) cv2.imshow("dst",dst) cv2.waitKey()

效果展示：