Title :
Illumination normalization of non-uniform images based on double mean filtering
Author :
Mustafa, Wan Azani ; Yazid, Haniza ; Bin Yaacob, Sazali
Author_Institution :
Sch. of Mechatron., Univ. Malaysia Perlis, Arau, Malaysia
Abstract :
In segmentation process, non-uniform illumination problem can affect the segmentation result. In this paper, a new method is proposed to solve the problem based on double mean filtering. By applying a combination between mean and threshold value, the varying background is normalized. This proposed method had been experimented with a few badly illuminated images and the result is evaluated by using Misclassification Error (ME), Sensitivity and Specificity. Based on the ME results, proposed method increases the segmentation correction to 88.27%. Besides that, the sensitivity and specificity of proposed method obtained is 94.56190% and 98.57924% and for classical Otsu is 90.30550% and 61.85435%.
Keywords :
image filtering; image segmentation; double mean filtering; illumination normalization; image segmentation correction; misclassification error; nonuniform illumination problem; nonuniform image; sensitivity; specificity; Discrete cosine transforms; Face recognition; Filtering; Histograms; Image segmentation; Lighting; Sensitivity and specificity; Illumination; Mean Filter; Non-uniform; Otsu; Segmentation;
Conference_Titel :
Control System, Computing and Engineering (ICCSCE), 2014 IEEE International Conference on
Print_ISBN :
978-1-4799-5685-2
DOI :
10.1109/ICCSCE.2014.7072746