General shape analysis applied to stamps retrieval from scanned documents

摘要: The main purpose of the paper is to present a method detection, localization and segmentation stamps (imprints) in scanned document. It very actual topic these days since more traditional documents are being stored on digital media. Such copy stamp may be then used print falsified another Thus, an electronic version document hard drive can taken as forensic evidence possible crime. process automatic image retrieval basis identification make crime investigation efficient. problem not trivial there no such thing like standard. There many variations size, shape, complexity ink color. should remembered that degraded quality placed relatively complicated background. algorithm consists several steps: color pixel classification, regular shapes candidates verification. includes also some results selected experiments real having different types stamps.