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如何对numpy数组可视化？如何将numpy数组保存为图片？

2021-12-31 分类：深度学习评论(0) 赞(379)

推荐使用matplotlib：

import matplotlib
 
matplotlib.image.imsave('xxx.png', array)

import matplotlib

matplotlib.image.imsave('xxx.png', array)

这是对应解释：

Arguments:
  *fname*:
    A string containing a path to a filename, or a Python file-like object.
    If *format* is *None* and *fname* is a string, the output
    format is deduced from the extension of the filename.
  *arr*:
    An MxN (luminance), MxNx3 (RGB) or MxNx4 (RGBA) array.

Arguments:

*fname*:

A string containing a path to a filename, or a Python file-like object.

If *format* is *None* and *fname* is a string, the output

format is deduced from the extension of the filename.

*arr*:

An MxN (luminance), MxNx3 (RGB) or MxNx4 (RGBA) array.

保存的图片类似彩图。

当然，OpenCV也行：

import cv2
import numpy as np
 
cv2.imwrite("xxx.png", array)

import cv2

import numpy as np

cv2.imwrite("xxx.png", array)

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