Review of Some Existing Work for Self-Recovery Fragile Watermarking Algorithms

2nd Annual Applied Science and Engineering Conference

工业技术;自然科学

Rakhmawati, L.^1 ; Rochmawati, N.^2

Department of Electrical Engineering, Universitas Negeri Surabaya, Indonesia^1

Department of Informatics, Universitas Negeri Surabaya, Indonesia^2

关键词: Digital contents;    Embedding algorithms;    Fragile watermark;    Fragile watermarking;    Frequency domains;    Original images;    Self-recovery fragile watermarking;    Tamper detection and recoveries;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/288/1/012093/pdf
DOI  :  10.1088/1757-899X/288/1/012093

来源: IOP

【 摘 要 】

This paper covers brief study about some of the latest research trends in self-recovery fragile watermarking algorithms. Fragile watermarking techniques aim to detect modifications to images that are sensitive to any changes, which they are intolerant of even a one-bit alteration. It is desirable to be able to locate the modified areas when a portion of the original content is replaced with other information. Therefore, fragile watermarks are intended for checking the integrity and authenticity of digital contents. Self-recovery means that some significant feature obtained from a selected image itself as a watermark by modifying the pixel values of the original image (host). Once the picture is modified by other users, which has been inserted watermark can be used for tamper detection and recovery images. In this research, we have studied that generally, embedding algorithm for tamper recovery includes three main steps: preprocess the original image and extract important information from it, reorder and embed important information into spatial or frequency domain of host image, and extract the important information from stego-image and use it to recover damaged parts as tamper occurs.