Classify Watermark Permit For Free

Watermarking an image can be robust, fragile, or semi-fragile [3] . A watermarked image that is semi-fragile can tolerate some degree of image distortion, while a watermarked image that is fragile cannot tolerate any deformation [3]. ...

Visible Watermarks ? These watermarks are visible. Invisible Watermarks ? These watermarks are embedded in the media and use steganography technique. They are not visible by naked eyes. Public Watermarks ? These can be understood and modified by anyone using certain algorithms.

Generally, watermarking techniques is classified based on different embedding domain of the watermark into two classes, spatial and transform domain or the frequency domain.

The basic characteristics of digital watermark are imperceptibility, capacity, robustness and false positive of watermarking algorithm and security of the hiding place.

Digital watermarking is the process of inserting invisible information (a signal) into a component or digital transmitted data which can be detected by a computer algorithm to prove the authenticity and integrity of the component or the transmitted data (Dibaji et al., 2022).

There are two types of digital watermarking, visible and invisible.

There are two types of digital watermarking, visible and invisible. A visible watermark on a file or image is very similar to a corporation's logo on its letterhead.

Insert a watermark On the Design tab, select Watermark. Choose a pre-configured watermark, like DRAFT, CONFIDENTIAL, or DO NOT COPY. For placing a logo or image, Select Watermark > Custom Watermark > Picture watermark > Select Picture. On the same menu you can create a custom text watermark.

A watermark is an image or text that appears behind the main text of the document. It is usually a lighter shade than the text, so you can read the document easily. Text Watermarks are often used to categorize or to show the purpose of a document with words such as DRAFT.

A watermark is a faded background image that displays behind the text in a document. You can use them to indicate a document's state (confidential, draft, etc.), add a subtle company logo, or even for a bit of artistic flair.