Abstract
With the spread of input devices such as scanners and digital cameras, hundreds of thousands of digital images are now being created and distributed. It will be necessary to find a way to manage and retrieve desired images easily from such a large amount of low-cost image data. This paper presents easy and high performance retrieving and overlooking functions for finding desired images base on image features. Also, by adopting the same idea to another media, the retrieval functions for video, 3D, music are presented.