FeatureDistance
FeatureDistance[example1,example2,extractor] gives the distance between example1 and example2 in the feature space defined by extractor.
FeatureDistance[extractor] represents an operator form of FeatureDistance that can be applied to a pair of examples.
Examples
(* Distance between two images in feature space *)
FeatureDistance[image1, image2, "Image"]
(* Distance between text *)
FeatureDistance["cat", "dog", "Word"]
(* Create a distance function *)
distFunc = FeatureDistance["Image"];
distFunc[img1, img2]Please visit the official Wolfram Language Reference for more details.