Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/19778
標題: 基於像素邊緣特性的影像放大方法
An Image Enlargement Method Based on Edge Characteristics
作者: 林靖哲
Lin, Ching-Che
關鍵字: 影像放大;雙立方內插法;雙線性內插法;最近相鄰內插法;像素邊緣特性
出版社: 資訊科學與工程學系所
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摘要: 
摘要
將影像放大的過程中,影像的品質會隨著放大倍率而快速降低,尤其在邊緣的部份會產生模糊與鋸齒的現象,本論文提出一種利用原始像素邊緣特性和區域關係的插補方法,用來改善放大影像的品質。
利用基於原始像素邊緣特性和區域關係的內插法可以改善影像放大的缺點,影像放大時,邊緣越平滑及銳利往往在人眼視覺上會感覺影像品質較好,所以在本論文提出的方法是針對影像邊緣做處理,非邊緣的部份則採取傳統雙線性內插方法加以處理,提高影像處理的效能,與一般邊緣偵測內插法比起來,處理時間較短且能獲得不錯的影像品質。
經過實驗後,採用PSNR及人眼觀察的方式比較影像品質的結果,本論文提出的方法皆能有比Bicubic執行時間快且不錯的影像品質。
URI: http://hdl.handle.net/11455/19778
Appears in Collections:資訊科學與工程學系所

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