Evaluation of JPEG XT for high dynamic range cameras

作者:

Highlights:

• 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.

摘要

Highlights•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.

论文关键词:High dynamic range,Digital photography,Image storage,Image coding,JPEG XT,Coding efficiency

论文评审过程:Received 16 February 2016, Revised 23 October 2016, Accepted 23 October 2016, Available online 30 October 2016, Version of Record 6 November 2016.

论文官网地址:https://doi.org/10.1016/j.image.2016.10.004