Optimization of tone-mapping functions in video cameras for high dynamic range images

Sascha D. Cvetkovic; Jan Klijn; Peter H. N. de With

doi:10.1117/12.765126

26 February 2008 Optimization of tone-mapping functions in video cameras for high dynamic range images

Sascha D. Cvetkovic, Jan Klijn, Peter H. N. de With

Proceedings Volume 6811, Real-Time Image Processing 2008; 68110Q (2008) https://doi.org/10.1117/12.765126
Event: Electronic Imaging, 2008, San Jose, California, United States

Abstract

For real-time imaging with digital video cameras, good tonal rendition of video is important to ensure high visual comfort for the user. Except local contrast improvements, High Dynamic Range (HDR) scenes require adaptive gradation correction (tone-mapping function) which should enable good visualization of details at lower brightness. We discuss how to construct and control optimal tone-mapping functions, which enhance visibility of image details in the dark regions while not excessively compressing the image in the bright image parts. The result of this method is a 21-dB expansion of the dynamic range. The new algorithm was successfully evaluated in HW and although suited for any video system, it is particularly beneficial for those processing HDR video.

Citation Download Citation

Sascha D. Cvetkovic, Jan Klijn, and Peter H. N. de With "Optimization of tone-mapping functions in video cameras for high dynamic range images", Proc. SPIE 6811, Real-Time Image Processing 2008, 68110Q (26 February 2008); https://doi.org/10.1117/12.765126

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available