Evaluation of JPEG XT for high dynamic range cameras

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• 作者：Philippe Hanhart ; ^{philippe.hanhart@gmail.com} ; Touradj Ebrahimi ^{touradj.ebrahimi@epfl.ch}
• 关键词：High dynamic range ; Digital photography ; Image storage ; Image coding ; JPEG XT ; Coding efficiency
• 刊名：Signal Processing: Image Communication
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：50
• 期：Complete
• 页码：9-20
• 全文大小：2063 K
• 卷排序：50

文摘

We investigate different solutions to store HDR images taken by DSLR cameras. We measure the bit rate reduction of JPEG XT over multiple exposures JPEG. We measure the bit rate reduction of HEVC over multiple exposures JPEG. We measure the quality increase due to using linear values over gamma-encoded values. Results show gains for JPEG XT and HEVC over multiple exposures 8-bit JPEG images.