First prototypes available

Dear members

I spent the last few weeks creating prototype implementations of software that uses the XMP rmd draft standard. 

The results can be seen on this demo page:
http://sbaechler.github.io/universalimages-demo/

You can try out the image server yourself here:
http://thumbor.stellanera.com/unsafe/320x/filters:rmd()/http://stellanera.com/universalimages/monks.jpg. Just increase the image width to 360 or 480 and see the crop region adjust for the new width. You can also use your own images as a source.
The server is running on a EC2 micro instance and is not protected. Please don’t abuse it.

I had to make some small adjustments to the schema while developing the prototypes. But now I think it holds up pretty well.
The big advantage of using a XMP schema is that it is completely independent of the image format. 

The first tool is a Metadata UI Extension for Adobe products. It allows editing the responsive metadata by hand using the „File information“ dialog. It is available on Github under the universalimages organization: https://github.com/universalimages/rmd-extension.

The next tool is a Adobe Photoshop plugin for Photoshop CC that provides a graphical user interface for setting responsive metadata information. The package can be downloaded here: https://github.com/sbaechler/ps-rmd-plugin/releases.

In the newest version of Photoshop, Adobe stopped support for the Extension manager and requires that all plugins be installed via the Adobe Exchange cloud platform. I submitted the package and it is currently in review. I can give anyone who is interested a preview access. Just send me your email address (that has a creative cloud account) and I can add you to the testers group.

For cropping the images, I created a plugin for the Python based open-source image server Thumbor. The plugin currently only runs on a fork of Thumbor because it needs access to the XMP metadata. 
The repository is available here: https://github.com/sbaechler/thumbor-universalimages. I added a UML activity diagram to the repo that explains the cropping process. It got quite complex with all the rules and combinations of them. 


Best Regards

Simon