Save Numpy array as image in python

The first solution

Can be used, the code is as follows:

import 
('', image_array)

The abovescipyThe version will standardize all images so that min (data) becomes black and max (data) becomes white. If the data should be accurate grayscale or accurate RGB channels, the solution is:

import 
(image_array, cmin=0.0, cmax=...).save('')

The second solution

usePIL。

Given a numpy array "A":

from PIL import Image
im = (A)
("")

You can replace "jpeg" with almost any format you want. See the format for detailshereMore details

The third solution

mport matplotlib

('', array)

import matplotlib.pyplot as plt
plt.imshow(matrix) #Needs to be in row,col order
plt.savefig('')

The fourth solution

import cv2
import numpy as np
("", ((10,10)))

Reference /article/