5 citations · 11 across the 8 of their papers we have counts for
8 papers
Proxy System with JPEG Bitstream-Based File-Size Preserving Encryption for Cloud Photo Streams
Hiroyuki Kobayashi, Hitoshi Kiya
In this paper, we propose a proxy system with JPEG bitstream-based file-size preserving encryption to securely store compressed images in cloud environments. The proposed system, w…
Extension of JPEG XS for Two-Layer Lossless Coding
Hiroyuki Kobayashi, Hitoshi Kiya
A two-layer lossless image coding method compatible with JPEG XS is proposed. JPEG XS is a new international standard for still image coding that has the characteristics of very lo…
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…
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…
JPEG XT Image Compression with Hue Compensation for Two-Layer HDR Coding
Hiroyuki Kobayashi, Hitoshi Kiya
We propose a novel JPEG XT image compression with hue compensation for two-layer HDR coding. LDR images produced from JPEG XT bitstreams have some distortion in hue due to tone map…
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…
Two-Layer Lossless HDR Coding using Histogram Packing Technique with Backward Compatibility to JPEG
Osamu Watanabe, Hiroyuki Kobayashi, Hitoshi Kiya
An efficient two-layer coding method using the histogram packing technique with the backward compatibility to the legacy JPEG is proposed in this paper. The JPEG XT, which is the i…
Two-layer Lossless HDR Coding considering Histogram Sparseness with Backward Compatibility to JPEG
Osamu Watanabe, Hiroyuki Kobayashi, Hitoshi Kiya
An efficient two-layer coding method using the histogram packing technique with the backward compatibility to the legacy JPEG is proposed in this paper. The JPEG XT, which is the i…