Image magni cation by least squares surfaces
سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 443
فایل این مقاله در 15 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJNAO-7-2_003
تاریخ نمایه سازی: 1 اردیبهشت 1397
چکیده مقاله:
Image magnification is one of the current issues of image processing in which keeping the quality and structure of images is the main concern. In image magnification, it is necessary to insert information in extra pixels. Adding information to an image should be compatible with the image structure with- out making artificial blocks. In this research, extra pixels are estimated using the surface of least squares, and all the pixels are reviewed according to the suggested edge-improving algorithm. The suggested method keeps the edges and minimizes the magnified image opacity and the artificial blocks. Numerical results are presented by using PSNR and SSIM fidelity measures and compared to some other methods. The average PSNR of the original image and image zooming is 32.79 which it shows that image zooming is very similar to the original image. Experimental results show that the proposed method has a better performance than others and provides good image quality.
کلیدواژه ها:
نویسندگان
A.M Esmaili Zaini
Department of Applied Mathematics, Faculty of Mathematical Sciences, Yazd University, Yazd , Iran
G.B Loghmani
Department of Applied Mathematics, Faculty of Mathematical Sciences, Yazd University, Yazd , Iran
A.M Latif
Department of Computer Engineering, Faculty of Engineering, Yazd University, Yazd , Iran