在 Kivy 中从内存中加载图像

Load image from memory in Kivy(在 Kivy 中从内存中加载图像)

问题描述

我在内存中有一张图片格式(从pyplot输出)，我想通过Kivy直接在Android上显示它，但我不想创建图片文件.有没有办法做到这一点?在 pyplot 上，我可以通过将对象写入对象来生成类似对象的文件，但我不知道如何将其放入 Kivy.

I have a picture in memory a format (output from pyplot) and I want to directly show it on the Android through Kivy, but I don't want to create a picture file. Is there any way to do this? On pyplot I am able to generate the file like object by writing it the object, but I don't know how to put it into Kivy.

推荐答案

您可以使用 StringIO 将文件保存到缓冲区中(参见:Python中的二进制缓冲区).

You could save the file into a buffer with StringIO (see this: Binary buffer in Python).

类似:

from StringIO import StringIO
buff = StringIO()
plt.savefig(buff)
buff.seek(0)
from kivy.core.image.img_pygame import ImageLoaderPygame
imgdata = ImageLoaderPygame(buff)._data

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