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High dynamic range image tone mapping technique based on the improved bitonic filter

International Journal of Knowledge-Based and Intelligent Engineering Systems, ISSN: 1875-8827, Vol: 23, Issue: 2, Page: 121-129
2019
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Article Description

The field of High dynamic range (HDR) imaging technique tries to solve the problem of capturing images and display in the devices, which are limited in dynamic range. Tone mapping technique approximates the appearance of an HDR image based on the logarithm of the luminance value. The tone mapping technique leads to detail loss, artifacts and higher computation time in local tone mapping. The aim of the research is to increase the performance of the tone mapping and to increases the image quality. The new technique is proposed such as Improved Bitonic Tone Mapping (IBTM) for efficient tone mapping. The weight factor is added to the bitonic filter and edges having high weight, when compared to the flat surface. The proposed method is compared with different tone mapping algorithms (Reinhard, Drago, Durand, Mantiuk, Pattanaik, Exposure and Gamma, Local adaptation, Equalize Histogram, Adaptive reference value) with quality. The experimental result shows that higher performance can be achieved by the proposed technique in a) preserving the quality of the image which is measured by PSNR and TMQM metrics and in b) execution time taken to generate the image measured in seconds.

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