数据类型错误

Question

当我运行这段代码我得到的输出：

TypeError: an integer is required 

我不知道为什么会这样，因为我同时设置了数据类型分别UINT8 UINT64和。显然我不太了解数据类型。

from PIL import Image 

from numpy import random 

N = 100 

##open an image 
im=Image.open('/Users/grahamwarner/Desktop/Experiment/gwarner/labeled_photos/masks/003030.png') 

##create a random image 
rand_matrix = random.randint(0, 255, (500, 500, 3)).astype('uint8') 

rand_image = Image.fromarray(rand_matrix) 

##select N random pixels 
rand_pix = random.randint(0,499, (N,2)).astype('uint64') 

##replace the random values at these pixels with the original values 
for ii in range(N): 

    rand_image.putpixel(tuple(rand_pix[ii,:]), im.getpixel(tuple(rand_pix[ii,:]))) 

Answer 1

getpixel该方法在PIL似乎是绕其输入非常挑剔，特别希望的int秒（其是不一样的numpy的的uint64型）的元组。以下适用于我：

for ii in range(N): 
    coordinate = tuple(map(int, rand_pix[ii,:])) 
    rand_image.putpixel(coordinate, im.getpixel(coordinate))