Demosaicing of Color Images by Accurate Estimation of Luminance
Abstract: Digital cameras
acquire color images using a single sensor with Color filter Arrays. A single color
component per pixel is acquired using color filter arrays and the remaining two
components are obtained using demosaicing techniques. The conventional
demosaicing techniques existent induce artifacts in resultant images effecting
reconstruction quality. To overcome this drawback a frequency based demosaicing
technique is proposed. The luminance and chrominance components extracted from
the frequency domain of the image are interpolated to produce intermediate demosaiced
images. A novel Neural Network Based Image Reconstruction Algorithm is applied
to the intermediate demosaiced image to obtain resultant demosaiced images. The
results presented in the paper prove the proposed demosaicing technique
exhibits the best performance and is applicable to a wide variety of images.
Author: V.N.V. Satya Prakash
Journal Code: jptkomputergg160198
