An ASIC based invisible watermarking of grayscale images using pixel value search algorithm (PVSA).
S. M. SakthivelAdepu Ravi SankarPublished in: Multim. Tools Appl. (2018)
Keyphrases
- grayscale images
- pixel values
- gray level
- gray scale
- image quality
- secret data
- reconstructed image
- image enhancement
- digital images
- co occurrence
- watermarking scheme
- median filter
- binary images
- color images
- input image
- image segmentation
- texture images
- color information
- information hiding
- copyright protection
- watermarking algorithm
- texture features
- spread spectrum
- data hiding
- digital watermarking
- cover image
- probability density function
- post processing
- texture information
- ground truth
- test images