Search Results for author: Osamu Watanabe

Found 4 papers, 0 papers with code

Two-layer Near-lossless HDR Coding with Backward Compatibility to JPEG

no code implementations9 May 2019 Hiroyuki Kobayashi, Osamu Watanabe, Hitoshi Kiya

The experimental results indicate that the proposed method exhibits not only a better near-lossless compression performance than that of the two-layer coding method of the JPEG XT, but also there are no issue regarding the combination of parameter values without losing backward compatibility to the JPEG standard.

Image Compression Quantization +1

Two-Layer Lossless HDR Coding using Histogram Packing Technique with Backward Compatibility to JPEG

no code implementations2 Aug 2018 Osamu Watanabe, Hiroyuki Kobayashi, Hitoshi Kiya

The experimental results demonstrate that not only the proposed method has a better lossless compression performance than that of the JPEG XT, but also there is no need to determine image-dependent parameter values for good compression performance without losing the backward compatibility to the well known legacy JPEG standard.

Image Compression

Two-layer Lossless HDR Coding considering Histogram Sparseness with Backward Compatibility to JPEG

no code implementations28 Jun 2018 Osamu Watanabe, Hiroyuki Kobayashi, Hitoshi Kiya

The experimental results demonstrate that not only the proposed method has a better lossless compression performance than that of the JPEG XT, but also there is no need to determine image-dependent parameter values for good compression performance in spite of having the backward compatibility to the well known legacy JPEG standard.

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