TypeError：“ numpy.float64”对象不可调用，为什么？

Question

Why am I getting this error? The error seems to be in the line calling 'for i in range' but I cannot see why this would be an error...I have quit the kernel in case something is hiding in i.

My code is as follows:

import os, sys
import numpy
from matplotlib import pylab, pyplot, cm
from math import pi
from skimage import io


image = numpy.ones([44,44],dtype = float)
imrange = len(image)

#Initialize empty residue map
residue_map = numpy.empty([imrange-2,imrange-2],dtype = float)

#Calculate the residues for each point following formula (1) in He paper
for i in range (1,int(imrange-1)):
    for j in range (1,int(imrange-1)):
        value = (image[i+1][j] - image[i][j]) + (image[i+1][j+1] - 
image[i+1][j]) + (image[i][j+1] - image[i+1][j+1]) + (image[i][j] - image[i][j+1])
        if value/2./pi > 0:
            residue_map[i-1][j-1] = 1.
        elif value/2./pi == 0:
            residue_map[i-1][j-1] = 0.
        else:
            residue_map[i-1][j-1] = -1.

Answer 1

作为python初学者的另一种情况....上面的代码按我定义的范围= numpy.max（image）-numpy.min（image）起作用，然后在循环中再次使用range，因此出现错误！