A New Technique for Image Zooming Based on the Moving Least Squares

سال انتشار: 1390
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 981

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شناسه ملی سند علمی:

JR_IJE-25-2_019

تاریخ نمایه سازی: 17 خرداد 1393

چکیده مقاله:

In this paper, a new method for gray-scale image and color zooming algorithm based on their local information is offered. In the proposed method, the unknown values of the new pixels on the image arecomputed by Moving Least Square (MLS) approximation based on both the quadratic spline andGaussian-type weight functions. The numerical results showed that this method is more preferable to bilinear interpolation in term of quality (for the quadratic spline weight function), and is comparable to bicubic interpolation (for the Gaussian-type weight function).

نویسندگان

s Ketabchi

Department of Mathematics, University of Guilan, P.O. Box ۳۷۵۶, Rasht, Iran

m kianpour

Department of Mathematics, University of Guilan, P.O. Box ۳۷۵۶, Rasht, Iran

r valizadeh

Department of Mathematics, University of Guilan, P.O. Box ۳۷۵۶, Rasht, Iran

M. J. Mahmoodabadi

Department of Mechanical Engineering, Takestan Branch, Islamic Azad University, Takestan, Iran