Abstract
A lossless data hiding technique was proposed using histogram pair based on fingerprint characteristics. It was used in an online bank pension distribution system for fingerprint recognition and fragile watermarking. The fingerprint characteristics of mass fingerprint image were analyzed. It was concluded that there was max number in pixel value equal to 0 and 255 from histogram of fingerprint image, and there was maximum fall between 0 or 255 and near pixel value. The values of 0 or 255 and near pixel were compressed, and then hidden data was embedded into 0 or 255. Experiment shows that it can get better Peak Signal-to-Noise Ratio (PSNR) and enough data embedding capacity to normal application (over 5î—¨000 bits).
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