如何保存存储在GAE Blobstore中的旋转图像？ [英] How to save a rotated image which was stored in GAE Blobstore?

问题描述

我想旋转并保存已存储在Blobstore中的图像。为此，我尝试使用 images.Image.rotate 方法

$ p $ img = images.Image（blob_key = image.blob）
img.rotate（180）
final_image = img.execute_transforms（output_encoding = images.PNG）


我不知道如何将旋转后的图像再次保存到Blobstore中。

解决方案

转换后的 image 只是您可以写回到Cloud Storage的字节集合 - 作为新对象或覆盖现有对象（例如 cloudstorage.open 使用Python GS Client将模式设置为w）。

I want to rotate and save an image which was already stored in blobstore. For this I tried using images.Image.rotate method

img = images.Image(blob_key=image.blob)
img.rotate(180)
final_image = img.execute_transforms(output_encoding=images.PNG)

I don't know how to save the rotated image again to the blobstore.

解决方案

A transformed image is just a collection of bytes that you can write back to the Cloud Storage - as a new object or overwrite an existing one (e.g. cloudstorage.open with mode set to "w" using Python GS Client).

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