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In Which Scenarios Image Processing Is Not Accessible Through Temporarily Authorized URLs?

For images that do not allow public read, the signature calculation requires image processing parameters in order to access the image processing service. You can set the policy of the image to public read, and then add image processing parameters to the end of the access URL. Example:

https://bucketname.obs.cn-north-4.myhuaweicloud.com/example.jpg?x-image-process=style/stylename