Embedding calculation error

[kevinsbarnard]

Reported by @lonnylundsten

The following error occurs when embeddings are enabled and while populating the image mosaic:

2025-02-24 17:11:55,593 - vars-gridview - ERROR - Error creating rect widget: Tensors must have same number of dimensions: got 2 and 1

[kevinsbarnard]

This appears to be a bug in how dreamsim is concatenating the embeddings from DINO models. I'm not sure why this is happening now, but it seems the DINO model is providing an output shape of (1, 7, 1, 768) while CLIP/OpenCLIP are giving a flat output tensor.

For now, I'm going to switch to using clip_vitb32 features as that seems to work OK in the dreamsim code.

[kevinsbarnard]

TBD vector DB will make this unnecessary.