An improved block dependent fragile image watermark.
Feilong LiuYangsheng WangPublished in: ICME (2003)
Keyphrases
- image blocks
- input image
- image data
- image processing operations
- image features
- digital images
- geometric distortions
- multiscale
- watermarking technique
- test images
- image content
- edge detection
- image segmentation
- high resolution
- semi fragile watermarking
- additive noise
- image retrieval
- image watermarking
- quadtree decomposition
- gray level
- image quality
- pixel values
- watermarking scheme
- feature vectors
- lossy compression
- image authentication
- robust watermarking scheme