import numpy # 向量与短阵运(线性代数运算) 1.19.5
import cv2 # opencv-python opencv-contrib-python:图像处理
# 生成数组
img_array=[[[0,255,0,128] for i in range(255)] for j in range(255)] # 255 * 255的图像，图像的像索, 255,0, 128]
# cv2中只支期numpy的格式
img_numpy = numpy.array(img_array)
cv2.imwrite("1.jpg",img_numpy)