Perceptual Image Hashing with Histogram of Color Vector Angles.
Zhenjun TangYumin DaiXianquan ZhangShichao ZhangPublished in: AMT (2012)
Keyphrases
- color histogram
- gray value
- color features
- image regions
- color distribution
- image pixels
- spatial color
- input image
- color correction
- histogram equalization
- histogram matching
- image features
- image data
- color model
- histogram analysis
- color segmentation
- multiscale
- pixel values
- image content
- image collections
- color texture
- visual perception
- human visual perception
- image retrieval
- gray level
- low level
- image contrast
- image segmentation
- color components
- color images
- pixel intensities
- hsv color space
- single image
- pixel wise
- perceptual quality
- contrast enhancement
- color and texture features
- background image
- digital imaging
- color channels
- color bands
- spatial frequency
- image representation
- color space
- color information
- similarity measure
- image classification
- natural images
- image texture
- mean shift
- spatial information
- ccd camera
- enhanced image
- human perception
- perceptual grouping
- color quantization
- segmentation method
- viewing angle
- visual features
- color constancy
- image quality
- gradient information