在保存时调整图像大小 [英] resize image on save

问题描述

在Django上传后，如何轻松调整图片大小？我正在使用Django 1.0.2，我已经安装了PIL。

How can I easily resize an image after it has been uploaded in Django? I am using Django 1.0.2 and I've installed PIL.

我在考虑覆盖模型的save（）方法来调整大小，但是我不会真的知道如何开始并重写它。

I was thinking about overriding the save() method of the Model to resize it, but I don't really know how to start out and override it.

有人可以指出我的方向正确吗？感谢： - ）

Can someone point me in the right direction? Thanks :-)

@GuðmundurH：
这不会工作，因为django-stdimage包在Windows上不起作用： - （

@Guðmundur H: This won't work because the django-stdimage package does not work on Windows :-(

推荐答案

您应该使用一种方法来处理上传的文件，如 Django文档。

You should use a method to handle the uploaded file, as demonstrated in the Django documentation.

在这种方法中，你可以连接变量中的块（而不是直接写入磁盘），从该变量创建PIL映像，调整映像大小并将其保存到磁盘。

In this method, you could concatenate the chunks in a variable (rather than writing them to disk directly), create a PIL Image from that variable, resize the image and save it to disk.

在PIL中，您应该看看 Image.fromstring 和 Image.resize 。

In PIL, you should look at Image.fromstring and Image.resize.

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