MSE period based estimation of first quantization step in double compressed JPEG images.
Fei XueZiyi YeWei LuHongmei LiuBin LiPublished in: Signal Process. Image Commun. (2017)
Keyphrases
- jpeg images
- quantization step
- jpeg compression
- dct domain
- file size
- compressed domain
- peak signal to noise ratio
- dct coefficients
- compressed images
- watermarking algorithm
- discrete wavelet transform
- discrete cosine transform
- transform domain
- spatial domain
- gaussian noise
- watermarking scheme
- compression algorithm
- visual quality
- post processing
- digital images
- human visual system
- preprocessing
- video sequences
- reconstructed image
- digital video
- image compression
- denoising