FeatureExtraction

FeatureExtraction[{example1,example2,…}] generates a FeatureExtractorFunction[…] trained from the examples given.

• FeatureExtraction[examples,extractor] uses the specified feature extractor method.
• FeatureExtraction[examples,{extractor1,extractor2,…}] applies the extractori in sequence to generate a feature extractor.
• FeatureExtraction[examples,spec->ext] uses the extractor methods specified by ext on parts of examples specified by spec.
• FeatureExtraction[examples,{spec1->ext1,spec2->ext2,…}] uses the extractor methods exti on parts of examples specified by the speci.
• FeatureExtraction[examples,extractor,props] gives the feature extraction properties specified by props.

Examples

(* Train a feature extractor on data *)
extractor = FeatureExtraction[{img1, img2, img3}]

(* Apply to new data *)
extractor[newImage]

(* Use PCA with 3 components *)
FeatureExtraction[data, {"StandardizedVector", {"PCA", 3}}]

Please visit the official Wolfram Language Reference for more details.