Image watermark protection based on self-recovery images and sparse approximation.
Hao-Chun WangIng-Yi ChenWei-Ming ChenPublished in: Multim. Tools Appl. (2017)
Keyphrases
- input image
- image processing operations
- image features
- test images
- geometric distortions
- image retrieval
- image classification
- segmentation method
- pixel values
- image regions
- discrete wavelet transformation
- edge detection
- image processing
- image representation
- segmentation algorithm
- keypoints
- watermarked image
- sparse approximation
- watermarking technique
- watermarking scheme
- natural images
- multiscale
- secret image
- image segmentation
- gaussian noise
- high resolution
- object recognition
- spatial information
- image quality
- superpixels
- face images
- computer vision
- watermarking algorithm
- face recognition
- prior information
- closed form
- low resolution
- wavelet transform