An embedding is a numerical representation of a complex object. In an image, each pixel is a dimension but it does not have any meaning in itself - you need to

An embedding is a numerical representation of a complex object. In an image, each pixel is a dimension but it does not have any meaning in itself - you need to look at the rest of the image to understand that the pixel is part of a cat. Embeddings is a way to represent this meaning. Think about it as a “summary” of a image / document.