Answers are grounded in this paper and cite their sources.
This work presents a simple but effective denoising algorithm using a local DCT thresholding. This thresholding is applied separately to each color channel after decorrelation. Due to its simplicity and excellent performance, this contribution can be considered as a baseline for comparison and lower bound of performance for newly developed techniques.
No takes yet. Share an insight, caveat, or question.
Yu et al. (2011) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: