Prevent wrong orientation from EXIF data with Thumbor filters

[avario]

When I access an image with orientation EXIF data, the output is often automatically rotated to an incorrect orientation. This seems to be a common issue: #220, #25

The current solution seems to be to include "rotate": null in the edits list. However, I'd prefer to access images using the Thumbor filters, so directly modifying the edit list isn't possible. Using a null value in the rotate Thumbor filter also doesn't look like it's possible.

A previous solution was to modify the RESPECT_ORIENTATION config value, however this doesn't look like it's supported using Sharp.

I saw that Sharp supports a PRESERVE_EXIF_INFO config value. I tried to override this by setting a Lambda environment variable of the same name to True, but this didn't have any effect. Perhaps this isn't the right way to set the config value.

Any ideas would be greatly appreciated! It seems like this should just be the default behaviour...

[beomseoklee]

@avario Do you have an example that I can try to reproduce so that we would think of the solution?

[avario]

@beomseoklee Here's an example of the automatic rotation effect:

Here's a direct link to the original image: https://bouldermap.s3.amazonaws.com/D624927E-AC6D-4B4D-84BC-E833093EBAAC.jpg

You can see that it has the correct orientation because the EXIF data for this file is intact.

Here's a link to the image accessed through Serverless Image Handler: https://d2ahr1fgdkzi3r.cloudfront.net/fit-in/300x400/D624927E-AC6D-4B4D-84BC-E833093EBAAC.jpg

You can see that it has been automatically rotated to the wrong orientation because the EXIF data has been stripped.

[avario]

@beomseoklee Any ideas on this?

[beomseoklee]

@avario I'm trying to experiment withMetadata() but it's not working properly when I provided rotate value.
I'll update once I find the permanent resolution of this issue.

[avario]

@beomseoklee Have you made any progress on this? I'd really like to get this deployed. If it's not going to be possible to use thumbor filters I can just look into using the an encoded edits list.

[beomseoklee]

@avario I'm preparing a new update including this issue. We are planning to release the new version in this month, but it can be delayed to the next month. If it's not possible to wait for you, it would be better to use the encoded edits list with rotate: null for now.

[avario]

@beomseoklee Do you have any news on when this update will be released?

[beomseoklee]

Thanks for waiting @avario
We've fixed this issue in v5.1.0.

[dovepa]

Hello,
I still have the bug on my cloudfront...
are you sure the bug is fixed ?
thanks

[marco910]

I'm using the latest version of the serverless image handler (v6.2.5) and still face the issue. But this only occurs in Chrome, not in Safari for example. When using the strip_exif filter in the URL, the image is rotated correctly.

[simonkrol]

Hi @marco910, the resources for this issue seem to have expired which make debugging a bit difficult. Could you open a new issue with some additional context for what you're running into?

[marco910]

Hi @simonkrol I created a new issue #537