Image Compression Based on a Partially Rotated Discrete Cosine Transform With a Principal Orientation.
Gihwan LeeYoonsik ChoePublished in: IEEE Access (2021)
Keyphrases
- discrete cosine transform
- image compression
- dct coefficients
- wavelet transform
- compression algorithm
- dct domain
- compressed images
- subband
- image blocks
- low bit rate
- reconstructed image
- blocking artifacts
- compression ratio
- coded images
- lapped transforms
- image processing
- image and video coding
- transform domain
- discrete fourier transform
- high frequency
- transform coding
- lossless compression
- lossy compression
- fast fourier transform
- hartley transform