Median filtering forensics based on optimum thresholding for low-resolution compressed images.
Saurabh AgarwalKi-Hyun JungPublished in: Multim. Tools Appl. (2022)
Keyphrases
- low resolution
- high resolution
- median filter
- jpeg compression
- super resolution
- visual quality
- peak signal to noise ratio
- post processing
- image compression
- high quality
- reconstructed image
- face images
- denoising
- dct coefficients
- gray level
- edge detection
- gaussian noise
- image processing
- image segmentation
- compressed domain
- image quality
- spatial resolution
- image enhancement
- image reconstruction
- bitstream
- compression ratio
- high frequency
- discrete cosine transform
- remote sensing
- multiresolution
- preprocessing
- multiscale