画出的效果如下： 代码
import os import cv2 import numpy as np board_pixel_width=200 ncols=9 nrows=6 if __name__=="__main__": image_width=(ncols+1)*board_pixel_width image_height=(nrows+1)*board_pixel_width res=np.zeros((image_height,image_width,1),np.uint8) res[:,:,:]=255 list=[] for i in range(4): for j in range(nrows): if i==0 and j==0: x_point=int( #最左上角的圆心位置 (image_width-board_pixel_width)/ncols*i+board_pixel_width) y_point=int( (image_height-board_pixel_width)/nrows*j+board_pixel_width) else: #其它点的圆心位置，在9*6网格图的点中会有上下左右偏移最多50像素的可能性 x_point=int( (image_width-board_pixel_width)/ncols*i+board_pixel_width+np.random.randint(-board_pixel_width//4, board_pixel_width//4)) y_point=int((image_height-board_pixel_width)/nrows*j+board_pixel_width+np.random.randint( -board_pixel_width//4,board_pixel_width//4)) list.append([x_point,y_point]) #将这个点加入list中 cv2.circle(res,(x_point,y_point),50,0,-1) #画这个圆，半径50，颜色黑，实心的 for i in range(-10,11): #画左上角十字 res[50+i,50]=0 res[50,50+i]=0 for i in range(-10,11): #画左下角十字 res[image_height-50+i,50]=0 res[image_height-50,50+i]=0 for i in range(-10,11): #画中间十字 res[image_height//2+i,image_width//2]=0 res[image_height//2,image_width//2+i]=0 with open("dot1.txt","w") as file: #写文件，写入所有圆心 for p in list: file.writelines("{} {}\n".format(p[0],p[1])) with open("world.txt","w") as file: file.writelines("{} {}\n".format(50,50)) file.writelines("{} {}\n".format(image_height-50,50)) file.writelines("{} {}\n".format(image_height//2,image_width//2)) nnrows=6 nncols=4 for row in range(0, nnrows): for col in range(0, nncols): if (row + col) % 2 == 0: prow = row#空出行边界 pcol = col#空出列边界 # print row, col res[100+int(prow * board_pixel_width):100+int((prow + 1) * board_pixel_width),1100+int(pcol * board_pixel_width):1100+int((pcol + 1) * board_pixel_width), :] = 0#把相应块的行列范围变成黑色 cv2.imwrite("picture.jpg",res) print(50,image_height-50)