Embed images¶
vision • image • embedding • Clip
Embed images using pretrained DL models.
An embedding vector is a numerical representation of an image (or text etc.), such that different numerical components
of the vector capture different dimensions of the image's content. Embeddings can be used, for example, to calculate
the semantic similarity between pairs of images (see link_embeddings, for example, to create a network of images
connected by similarity).
In its current form the step calculates image embeddings using Clip, which has been trained on 400M image/text pairs to pick out an image's correct caption from a list of candidates.
Usage¶
The following are the step's expected inputs and outputs and their specific types.
embed_images(images: url, {
"param": value
}) -> (embedding: list[number])
where the object {"param": value} is optional in most cases and if present may contain any of the parameters described in the
corresponding section below.
Example¶
The step has no required parameters, so the simplest call is simply
embed_images(ds.image_url) -> (ds.embedding)
Inputs¶
images: column:url
A column of URLs to images to calculate embeddings for.
Outputs¶
embedding: column:list[number]
A column of embedding vectors capturing the meaning of each input image.
Parameters¶
normalize: boolean = True
Whether to normalize embedding vectors (to length/norm of 1.0).