Title :
Robust focus measure for low-contrast images
Author :
Shen, Chun-Hung ; Chen, Homer H.
Author_Institution :
Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
The problem of auto-focusing has been studied for long, but most techniques found in literature do not always work well for low-contrast images. In this paper, a robust focus measure based on the energy of the image is proposed. It performs equally well on ordinary and low-contrast images. In addition, it is computationally efficient.
Keywords :
image processing; auto-focusing; low-contrast images; robust focus measure; Band pass filters; Energy measurement; Focusing; Power engineering and energy; Reactive power; Robustness; Tellurium; Tin;
Conference_Titel :
Consumer Electronics, 2006. ICCE '06. 2006 Digest of Technical Papers. International Conference on
Print_ISBN :
0-7803-9459-3
DOI :
10.1109/ICCE.2006.1598314
