TY - GEN
T1 - Region-based backlight compensation algorithm for images and videos
AU - Hyun, Dae Young
AU - Heu, Jun Hee
AU - Kim, Chang-Su
AU - Lee, Sang Uk
PY - 2010
Y1 - 2010
N2 - An algorithm for compensating the effects of backlight in images and videos is proposed in this work. We first determine the region of interest (ROI) to compensate mainly using a saliency map, which is based on darkness, skin color, color and texture prominency features. We then compute the compensating offset value for each pixel. Initial offset values are derived to improve the brightness and the contrast of the ROI, and also to provide temporally consistent output frames in case of the video compensation. Finally, we obtain the final offset values by minimizing an energy function, consisting of a data term and a smoothness term. Simulation results show that the proposed algorithm improves the picture qualities of backlit images and videos efficiently.
AB - An algorithm for compensating the effects of backlight in images and videos is proposed in this work. We first determine the region of interest (ROI) to compensate mainly using a saliency map, which is based on darkness, skin color, color and texture prominency features. We then compute the compensating offset value for each pixel. Initial offset values are derived to improve the brightness and the contrast of the ROI, and also to provide temporally consistent output frames in case of the video compensation. Finally, we obtain the final offset values by minimizing an energy function, consisting of a data term and a smoothness term. Simulation results show that the proposed algorithm improves the picture qualities of backlit images and videos efficiently.
KW - Backlight compensation
KW - Image enhancement
KW - Motion reliability
KW - Saliency
KW - Video enhancement
UR - http://www.scopus.com/inward/record.url?scp=78651066203&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78651066203&partnerID=8YFLogxK
U2 - 10.1109/ICIP.2010.5651281
DO - 10.1109/ICIP.2010.5651281
M3 - Conference contribution
AN - SCOPUS:78651066203
SN - 9781424479948
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 3545
EP - 3548
BT - 2010 IEEE International Conference on Image Processing, ICIP 2010 - Proceedings
T2 - 2010 17th IEEE International Conference on Image Processing, ICIP 2010
Y2 - 26 September 2010 through 29 September 2010
ER -