Content-Based Image Retrieval Using Features Extracted From Halftoning-Based Block Truncation Coding

Content-Based Image Retrieval Using Features Extracted From Halftoning-Based Block Truncation Coding Abstract: This paper presents a technique for content-based image retrieval (CBIR) by exploiting the advantage of low-complexity ordered-dither block truncation coding (ODBTC) for the generation of image content descriptor. In the encoding step, ODBTC compresses an image block into corresponding quantizers and bitmap image. […]


Variable-Length Signature for Near-Duplicate Image Matching

Variable-Length Signature for Near-Duplicate Image Matching ABSTRACT: We propose a variable-length signature for near-duplicate image matching in this paper. An image is represented by a signature, the length of which varies with respect to the number of patches in the image. A new visual descriptor, viz., probabilistic center-symmetric local binary pattern, is proposed to characterize […]