Robust Focus Measure for Low-Contrast Images

Chun-Hung Shen, H.H. Chen
2006 Digest of Technical Papers International Conference on Consumer Electronics  
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.
doi:10.1109/icce.2006.1598314 fatcat:auuazbbpcjdi7ocwtd5psspbdy