使用Python读取二维数组，将二维数组输出为图片，并保存在本地。
代码如下：
# coding=utf8
from PIL import Image
import numpy as np
from scipy import misc
import matplotlib.pyplot as pyplot
a = 300
b = 500
x = 20
y = 20
w = 40
h = 80
def Gener_mat(a,b,x,y,w,h): #生成图片矩阵
img_mat = np.zeros((a, b), dtype=np.int)
for i in range(0,a):
for j in range(0,b):
img_mat[i][j] = 0
for i in range(x,x+w):
for j in range(y,y+h):
img_mat[i][j] = 1
return img_mat
def out_img(data): #输出图片
new_im = Image.fromarray(data) #调用Image库，数组归一化
#new_im.show()
pyplot.imshow(data) #显示新图片
misc.imsave('new_img.jpg', new_im) #保存图片到本地
img_mat = Gener_mat(a,b,x,y,w,h)
out_img(img_mat)
