Demosaicing of color filter array captured images using gradient edge detection masks and adaptive heterogeneity-projection.
Without demosaicing processing, this paper first proposes a new approach to extract more accurate gradient/edge information on mosaic images directly. Next, based on spectral-spatial correlation, a novel adaptive heterogeneity-projection with proper mask size for each pixel is presented. Combining the extracted gradient/edge information and the adaptive heterogeneity-projection values, a new edge-sensing demosaicing algorithm is presented. Based on 24 popular testing images, experimental results demonstrated that our proposed high-quality demosaicing algorithm has the best image quality performance when compared with several recently published algorithms.
Chung
Kuo-Liang
KL
Department of Computer Science and Information Engineering, National Taiwan University of Science and Technology No. 43, Taipei, Taiwan 10672, ROC. k.l.chung@mail.ntust.edu.tw
Yang
Wei-Jen
WJ
Yan
Wen-Ming
WM
Wang
Chung-Chou
CC
D000465:Algorithms; D001185:Artificial Intelligence; D003116:Color; D003124:Colorimetry / Q000379:methods*; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity