Lossless Image Digital Watermarking based on Integer Wavelet and Histogram Adjustment
نویسندگان
چکیده
A novel distortionless image data hiding method named lossless image digital watermarking based on integer wavelet and histogram adjustment is proposed. This image data hiding method can invert the stego-image into the original image without any distortion after the hidden data are extracted. The image histogram adjustment is used to prevent grayscales from possible overflowing. This method hides data into a selected bit-plane of the integer wavelet transform coefficients in the high frequency subbands. It can embed much more data compared with the existing distiortionless data hiding techniques under imperceptibility requirement. Experimental results have demonstrated the validity of the algorithm.
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