Save metadata when exporting as pixelium file

[moonayyur]

Currently, the image instance is encoded and saved in a refs folder, so we loose the metadata
We would like to copy the metadata in the data.json file

Current data.json structure :

{
  "isLoading": false,
  "images": {
    "cc720446-9ef0-4b39-936d-f081b7e90655": {
      "image": "0655a16f-d92d-4bb8-b250-e55ac43c2266",
      "metadata": {
        "name": "Silica_small.tif",
        "relativePath": "Fribourg/Silica_small.tif"
      },
      "pipeline": [],
      "rois": []
    }
  }
}

[lpatiny]

In reality we should keep the original image and not recreate a PNG. @moonayyur could you check what should be changed in order to be able to save back in the .ium file the original image ?

The name should also be the original name. We we unzip a .ium file we need to get back the original name.

How to deal with conflict of name ???

If the name is already there we add a number

• colonies.jpg
• colonies.1.jpg
• colonies.2.jpg
• ...

I'm not sure why we are using a UUID to name the images, but if possible, I would simply use the 'unique' name (as generate before). When unzipping the ium file, it would be much easier to understand which image corresponds to which meta information (result of ROI's analysis, for example).

I would prefer a structure like: