Perceptual Image Hashing Based on Color Structure and Intensity Gradient.
Yan ZhaoXiaoran YuanPublished in: IEEE Access (2020)
Keyphrases
- intensity gradient
- image regions
- input image
- single image
- image retrieval
- gray scale images
- gradient information
- edge detection
- image structure
- multiscale
- pixel values
- image features
- color features
- edge pixels
- image segmentation
- segmentation method
- color image segmentation
- color images
- hough transform
- feature points
- color histogram
- least squares
- image intensity
- edge map