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- 1New tool uses 2D DFT and dithering to sharpen eInk manga●Show HN: Using 2D DFT, dithering, etc. to maximize eInk manga image quality
A developer has shared a technique combining 2D discrete Fourier transforms, dithering and related image-processing methods to maximize manga image quality on eInk e-readers. The approach, tied to the open-source Kindle Comic Converter project, aims to reduce artifacts and improve readability on low-resolution e-ink displays. Hacker News readers are discussing the signal-processing details and practical results for reading comics on e-readers.