Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MUTO Kenta and SAITOH Fumihiko,Image Magnification Method Based on Gradient Direction and Strength by Wide Pixel Area,The Journal of the Institute of Image Electronics Engineers of Japan,02859831,The Institute of Image Electronics Engineers of Japan,2008,37,4,454-460,https://cir.nii.ac.jp/crid/1390282679588328448,https://doi.org/10.11371/iieej.37.454