Evaluation of the Hash Value Size Effect used in Fragile Watermarking Methods on the Salt and Pepper Noise Adding Attack Detection

Fragile watermarking metbods are one of tbe widely used metbods to solve problems sueb as forgery detection, autbentication and image integrity protection on digital images. In recent years, basb fonetions baYebeen used in fragile watermarking metbods to generate watermark to be embedded In images. However, tbe bash value sizes used In tbe metbods are varied. In tbis study, a new basb function based fragile watermarking metbod Is proposed, and tbe elfect of tbe bash sizes against tbe salt and pepper noise adding attacks is observed.