Python图片转换成矩阵,矩阵数据转换成图片的实例

# coding=gbk
from PIL import Image
import numpy as np
# import scipy

def loadImage():
 # 读取图片
 im = Image.open("lena.jpg")

 # 显示图片
 im.show() 
 
 im = im.convert("L") 
 data = im.getdata()
 data = np.matrix(data)
#  print data 
 # 变换成512*512
 data = np.reshape(data,(512,512))
 new_im = Image.fromarray(data)
 # 显示图片
 new_im.show()
 
loadImage()