8201

7599

كارشناسي ارشد

معماري كامپيوتر

اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر

1392

سيزده،86ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

شادرخ سماوي

نادر كريمي

10/9/92

مهندسي برق و كامپيوتر

ID7599

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Abstract With the rise of multimedia devices now there are many images with different sizes and qualities that must be displayed with the use of different devices Hence users need to display an image on a device with the resolution greater or less than of the image s resolution Therefore to display an image it is probable to resize the image before displaying it To resize the images there are two general methods containing traditional methods and content aware methods Traditional methods are simple methods that remove insert or modify pixels using a general rule without any consideration to the image s content Hence quality of these methods is not very good In opposite content aware methods consider image s content and preserve pixels that are more notable for human visual system Hence quality of these methods is better than traditional methods Seam carving is one of these content aware methods that is simple and efficient for many images But whereas this method is naturally a sequential process it is computationally hard and is a slow method In this thesis we propose two new approaches to accelerate original method The first approach speeds up the method by 5 5 times in average and the second one accelerate it by 13 8 in average We also propose a new energy map that it use to preserve image content more efficient Keywords Seam content aware resizing pixel energy PDF created with pdfFactory trial version www pdffactory com

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نادر كريمي