Opencv random bytes to generate grayscale images and BGR images

1.  Create randomPic.py file

2. import cv2
   import numpy
   import os
   
   #产生随机数组
   randomByteArray = bytearray(os.urandom(120000))
   flatNumpyArray = numpy.array(randomByteArray)
   
   #数组转换为一个300*400的灰度图像
   grayImage = flatNumpyArray.reshape(300,400)
   cv2.imwrite('RandomGray.png',grayImage)
   
   #数组转换为一个100*400的彩色图像
   bgrImage = flatNumpyArray.reshape(100,400,3)
   cv2.imwrite('RandomColor.png',bgrImage)

3. Running the script will generate two random images, the image names RandomGray.png and RandomColor.png.
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