Compression of signs of DCT coefficients for additional lossless compression of JPEG images.
Oleksandr MiroshnichenkoMykola PonomarenkoVladimir V. LukinKaren O. EgiazarianPublished in: Image Processing: Algorithms and Systems (2018)
Keyphrases
- jpeg images
- lossless compression
- lossy compression
- dct coefficients
- compression ratio
- image compression
- discrete cosine transform
- compression algorithm
- image quality
- compressed images
- quadtree
- low bit rate
- reconstructed image
- inter frame
- transform domain
- dct domain
- jpeg compression
- data hiding
- compressed domain
- wavelet transform
- pattern matching
- bit rate
- multiresolution
- feature vectors
- continuous tone images
- image blocks
- peak signal to noise ratio
- watermarking algorithm
- spatial domain