deletions | additions       diff --git a/In_Fig_3_a_shows__1.tex b/In_Fig_3_a_shows__1.tex  index 565de4c..76f5c9f 100644  --- a/In_Fig_3_a_shows__1.tex  +++ b/In_Fig_3_a_shows__1.tex 
...
In Fig. 3(a) shows an image where the elliptical convex regions are in green color and the elliptical concave regions are in red color. In Fig. 3(b), a thresholding has been applied to isolate the regions with high values of curvature, which correspond to the region of interest: the nose is the most convex regions of the face and the eye sockets are the most concave regions of the face. In Fig. 4, the elliptical convex regions and the elliptical concave regions appear in green and red color, respectively, over the face image. \citet{gonzalez2014kinect}