The Effect of Modified BPCS Steganography on Content-Based Image Retrieval by Metric Histograms

摘要

Steady growth in processing and storage capabilities of PC makes it possible to store integrated databases of images at a single source. Retrieving specific images from these huge databases is greatly assisted by the use of powerful Content-Based Image Retrieval (CBIR) methods. These databases contain a considerable amount of redundant information that could be used to hide secure information using steganography. Since steganography works by explicitly modifying pixel values, it may affect the retrieval process. In this paper, we study the interplay of factors that affect the retrieval process and argue that the modified Bit-Plane Complexity Segmentation (BPCS) steganography scheme can be used to hide significant volumes of secure information without affecting the retrieval process significantly.