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eess.IV2019
Performance Evaluation of Two-layer lossless HDR Coding using Histogram Packing Technique under Various Tone-mapping Operators
Hiroyuki Kobayashi, Hitoshi Kiya
We proposed a lossless two-layer HDR coding method using a histogram packing technique. The proposed method was demonstrated to outperform the normative JPEG XT encoder, under the…
eess.IV2019★ 2 cited
Two-layer Near-lossless HDR Coding with Backward Compatibility to JPEG
Hiroyuki Kobayashi, Osamu Watanabe, Hitoshi Kiya
We propose an efficient two-layer near-lossless coding method using an extended histogram packing technique with backward compatibility to the legacy JPEG standard. The JPEG XT, wh…
eess.IV2018★ 4 cited
Bitstream-Based JPEG Image Encryption with File-Size Preserving
Hiroyuki Kobayashi, Hitoshi Kiya
An encryption scheme of JPEG images in the bitstream domain is proposed. The proposed scheme preserves the JPEG format even after encrypting the images, and the file size of encryp…