Abstract: The present disclosure generally relates to methods and computer program products for searching for a similar image among a plurality of stored images, and in particular to a method and computer program product used in a content based image retrieval system where roughly similar images are clustered and feature vectors for the clustered images are filtered based on a matching frequency for the feature vectors among the images in the cluster.

Abstract: The present disclosure generally relates to methods and computer program products for searching for a similar image among a plurality of stored images, and in particular to a method and computer program product used in a content based image retrieval system where roughly similar images are clustered and feature vectors for the clustered images are filtered based on a matching frequency for the feature vectors among the images in the cluster.

Abstract: The present disclosure generally relates to methods and computer program products for storing images in a computer memory, and in particular to a method and computer program product for storing a plurality of JPEG encoded images in a tree data structure, wherein common parts of images in upper tree nodes are utilized for compressing images in lower parts of the tree.

Abstract: A system for automatically tagging a digital image includes an electronic device having a face detector for receiving a digital image and determining whether the digital image contains at least one face. A faceprint generator generates a faceprint representing a face detected in the digital image. A matching operation attempts to match the faceprint to a reference data item to identify the face represented by the faceprint. If a match is found, a tag generator generates a text tag corresponding to the identity of the face represented by the faceprint, and may associate the tag with the digital image. If a match is not found, the faceprint may be transmitted with an identification request to an external electronic device, which performs the matching operation. Upon matching the faceprint to a reference data item, identification data identifying the face represented by the faceprint may be transmitted from the external electronic device to the originating electronic device.

Abstract: A system for tagging multiple digital images includes an electronic device having a display for rendering digital images. An interface in the electronic device receives an input of an area of interest within one of the rendered images, and receives a selection of images from among the rendered images to be associated with the area of interest. An input device in the electronic device receives a tag input based on the area of interest to be applied to the associated images. In one embodiment, the input device is a keypad that receives a manual tag input. Alternatively, portions of the rendered images may be transmitted to a network server. The server may compare the image portions to a reference database to identify the subject matter of the image portions, and generate a plurality of suggested tags based on the subject matter.