Bit Plane Index Based Fragile Watermarking Scheme for Authenticating Color Image

In the fragile digital color image watermarking for RGB color image authentication, fragility or sensitivity of the embedded watermark to malicious attacks is an important problem. In this work the current researches propose Bit Plane Index Modulation (BPIM) based fragile watermarking scheme for authenticating RGB color image. To deal with counterfeiting attacks block wise division dependency is established. A content based color watermark is created. Embedding distortion is minimized by adopting least significant bit (LSB) alteration scheme. The proposed scheme embeds watermark in three bit planes by changing original pixels with watermark pixels. The propose method comprise of encoding and decoding methods that can provide public detection capabilities in the absences of original host image and watermark image. The performances of the algorithm are verified by via experimental results and they illustrate the effectiveness of the proposed method.