A zero-watermarking scheme for digital images using histogram based features of circular sub-images

Key Points

• Zero-watermarking enhances the security of digital images without altering the original content, making it easier to verify authenticity.
• The scheme focuses on circular sub-images, using their histogram features to embed information invisibly within the image.
• An innovative approach using image processing techniques enhances the detection of embedded features within digital photographs.
• This method highlights the importance of maintaining image integrity while providing a means for copyright protection.},