[enhancement]: add a method to get the path of an image from the invocation context

[fieldOfView]

Is there an existing issue for this?

• I have searched the existing issues

Contact Details

No response

What should this feature add?

4.0 introduced a restrictive API for the invocation context (see #5491). This API does not seem to include a way to get the file path of an image. The image contents are available via context.images.get_pil and a public url is available via context.images.get_dto, but the only way to get the local path is by accessing the 'private' context._services.images class.

Getting the file path of a (compressed) image is useful for example when POSTing an image to a different server, like I do in the Remote Image nodes (https://github.com/fieldOfView/InvokeAI-remote_image).

The most straightforward way to disclose the local path of an image is by adding a get_path method to the ImagesInterface class. I can draft a PR for that.

Alternatives

Alternatively, I could

• Use the private context._services to get at the images.get_path method
• Load the PIL image and recompress it (and POST the result)
• GET the file through the API (and POST the result)

Additional Content

No response

[fieldOfView]

I have created #6176 for review.