Image Enhancement of Sea Objects based on Extended BEMD
Jinyan Yang, Guanlei Xu, Yu Li · 2013
The safety is of much importance in sea transport for ships.This paper proposes a new way to enhance the sea objects' images that have low contrast based on extended BEMD (bidimensional empirical mode decomposition).The zero-mean waves are added and subtracted for image decomposition instead of the zero-mean random Gaussian noises as assisted signals.The new proposed method has the better performance in time-cost and complexity.After the decomposition of image to IMFs by the extended BEMD, the details and luminance of these sea objects' images as well as color are modulated to enhance the degraded sea objects' images.The efficiency of the proposed method is shown by some experiments.