Keyphrases
- image regions
- image pixels
- image data
- gray scale images
- single image
- input image
- multiscale
- color segmentation
- pixel values
- image analysis
- image content
- neighboring pixels
- image features
- image representation
- gray value
- color correction
- image distortion
- visual appearance
- image classification
- image segmentation
- spatial frequency
- homogeneous regions
- pixel intensities
- gradient information
- color constancy
- test images
- low level
- keypoints
- color vision
- color bands
- color texture
- color channels
- gray level images
- color model
- object recognition
- color histogram
- color images
- color information
- image collections
- visual features
- natural images