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数组转化为图像Converting between an image and raw bytes
import cv2 import numpy import os # Make an array of 120,000 random bytes. randomByteArray = bytearray(os.urandom(120000)) flatNumpyArray = numpy.array(randomByteArray) # Convert the array to make a 400x300 grayscale image. grayImage = flatNumpyArray.reshape(300, 400) cv2.imwrite(‘RandomGray.png‘, grayImage) # Convert the array to make a 400x100 color image. bgrImage = flatNumpyArray.reshape(100, 400, 3) cv2.imwrite(‘RandomColor.png‘, bgrImage)
运行脚本后会在脚本的路径中找到两个随机值构成的图像 RandomGray.png and RandomColor.png
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原文地址：http://www.cnblogs.com/nwpuxuezha/p/4246921.html
