Python：从base64字符串转换为opencv的替代方法 [英] Python: Alternate way to covert from base64 string to opencv

问题描述

我正在尝试将此字符串转换为base64（ http://pastebin.com/uz4ta0RL ） OpenCV可以使用的东西。
目前我使用此代码（img_temp是字符串）通过将OpenCV函数转换为临时图像（imagetosave.jpg）然后使用cv2.imread加载临时图像来使用它。

I'm trying to convert this string in base64 (http://pastebin.com/uz4ta0RL) to something usable by OpenCV. Currently I am using this code (img_temp is the string) to use the OpenCV functions by converting it to a temp image(imagetosave.jpg) then loading the temp image with cv2.imread.

    fh = open('imagetosave.jpg','wb')
    fh.write(img_temp.decode('base64'))
    fh.close()

    img = cv2.imread('imagetosave.jpg',-1)

虽然这种方法有效，但我希望能够在不使用临时图像的情况下使用OpenCV函数。
帮助将非常感谢，谢谢！

Though this method works, I would like to be able to use the OpenCV functions without using a temp image. Help would be much appreciated, thanks!

推荐答案

您可以将解码后的字符串转换为整数列表，然后你可以传递给 imdecode 函数：

You can convert your decoded string to a list of integers, which you can then pass to the imdecode function:

img_array = map(int, img_temp.decode('base64'))
img = cv2.imdecode(img_array, -1)

这篇关于Python：从base64字符串转换为opencv的替代方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！