Graph-Based Joint Dequantization and Contrast Enhancement of Poorly Lit JPEG Images.
Xianming LiuGene CheungXiangyang JiDebin ZhaoWen GaoPublished in: IEEE Trans. Image Process. (2019)
Keyphrases
- contrast enhancement
- jpeg images
- image enhancement
- histogram equalization
- post processing
- visual quality
- compressed images
- gray level
- color images
- multiscale
- discrete cosine transform
- compression algorithm
- transfer function
- jpeg compression
- dct coefficients
- data hiding
- dct domain
- image analysis
- human visual system
- wireless channels
- transform domain
- compressed domain
- preprocessing
- high frequency
- high quality
- image processing