Luminance Quasi-Preserving Color Quantization for Digital Steganography to Palette-Based Images.
Michiharu NiimiHideki NodaEiji KawaguchiRichard O. EasonPublished in: ICPR (1) (2002)
Keyphrases
- color quantization
- color palette
- color images
- color space
- grayscale images
- image data
- color correction
- image database
- input image
- rgb color space
- text graphics
- gray scale
- object recognition
- test images
- quantization error
- edge detection
- image features
- image retrieval
- compression algorithm
- lighting conditions
- spatial information
- segmentation algorithm
- image classification