HDR Image Compression by Multi-Scale down Sampling of Intensity Levels

被引：1

作者：

Swamy, A. S. Anand ^{[1
]}

Shylashree, N. ^{[1
]}

机构：

[1] Visvesvaraya Technol Univ, RV Coll Engn, Dept Elect & Commun, Bengaluru 560059, Karnataka, India

来源：

INTERNATIONAL JOURNAL OF IMAGE AND GRAPHICS | 2021年 / 21卷 / 04期

关键词：

Edge preserving filters; HDR decomposition; tone mapping; VIDEO COMPRESSION;

D O I：

10.1142/S0219467821500480

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

HDR images are inherently very large in size compared to normal images. Hence, storage and communication overheads of HDR images are expensive to be used in mobile devices. Hence, invariably image compression is adopted for HDR images. In this paper, HDR image compression is achieved by down sampling the intensity levels while maintaining the dynamic range same as that of the original. This aspect retains the edge information of the images almost intact. Spatial down-sampling process is used to reduce the number of intensity samples. Consequently, this operation lowers the bit depth required to store the corresponding index file which in turn results in image compression.

引用

页数：30

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