JPM-Based Differential Image Storage Method for Image Revision Management System

抄録

An efficient partial image storage method is required for an image revision system to store a huge amount of retouched image data. This paper proposes and evaluates a framework for an image revision management system, which uses the JPM file format to store differential elements between two versions of the image. Two data storing approaches are considered, one stores replaced elements after the edition, and the other stores replaced elements or differential elements adaptively. These approaches are evaluated with four different kinds of edit operations: blurring, edge emphasis, character writing, and adding noise. Since the combination of JPM's image object organization and JPEG 2000's efficient region compression is effective for image revision management, our proposed system can save storage capacity and network bandwidth in the image revision management system.