Video luminance transient improvement using difference-of-Gaussian
APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
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Edge enhancement of digital images or videos is generally based on a luminance or color transient improvement that reduces the edge transition time. However, it often generates negative side-effects such as overshoot and undershoot. In this paper, we present an adaptively rate-controlled shoot suppression method for suppressing the shoots that occurred in the luminance transient improvement. The proposed method is based on a modified min/max nonlinear filter with an adaptively rate-controlled shoot suppression scheme. Experimental results show that the proposed method effectively suppresses the shoots and solves the problems of current shoot suppression methods