New visual cryptography system based on circular shadow image and fixed angle segmentation.
Jeanne ChenTung-Shou ChenHwa-Ching HsuHsiao-Wen ChenPublished in: J. Electronic Imaging (2005)
Keyphrases
- image segmentation
- segmentation method
- segmentation algorithm
- multiscale
- image analysis
- edge detection
- image regions
- test images
- image data
- input image
- image features
- hough transform
- single image
- pixel values
- visual cryptography
- image processing
- natural images
- gray value
- secret image
- post processing
- video sequences
- high quality
- human eyes
- computer vision