Numpy 将二维图像矩阵转换为一维向量的方法

def image2vector (filename):
 returnVect=zeros((1,1024))
 f=open(filename)
 for i in range (32):
 lineStr =fr.readline()
 for j in range (32):
  returnVect[0,32*i*j]=int(lineStr[j])
 return returnVect