Reversible Data Hiding Using Contrast Enhancement Approach

International Journal of Image Processing

Amjed S. Al-Fahoum¹  Mohammed Yaser¹ 

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关键词: Reversible Data Hiding;    Histogram;    Stenography;    Performance;    Watermarking.;   

DOI  :  

来源: Computer Science Journals

【 摘 要 】

Reverse Data Hiding is a technique used to hide the object's data details. This technique is usedto ensure the security and to protect the integrity of the object from any modification by preventingintended and unintended changes. Digital watermarking is a key ingredient to multimediaprotection. However, most existing techniques distort the original content as a side effect ofimage protection. As a way to overcome such distortion, reversible data embedding has recentlybeen introduced and is growing rapidly. In reversible data embedding, the original content can becompletely restored after the removal of the watermark. Therefore, it is very practical to protectlegal, medical, or other important imagery. In this paper a novel removable (lossless) data hidingtechnique is proposed. This technique is based on the histogram modification to produce extraspace for embedding, and the redundancy in digital images is exploited to achieve a very highembedding capacity. This method has been applied to various standard images. Theexperimental results have demonstrated a promising outcome and the proposed techniqueachieved satisfactory and stable performance both on embedding capacity and visual quality. Theproposed method capacity is up to 129K bits with PSNR between 42-45dB. The performance ishence better than most exiting reversible data hiding algorithms.

【 授权许可】

Unknown