计算机应用
計算機應用
계산궤응용
COMPUTER APPLICATION
2010年
1期
82-84,89
,共4页
图像放大%B样条曲线%边缘检测%双三次插值
圖像放大%B樣條麯線%邊緣檢測%雙三次插值
도상방대%B양조곡선%변연검측%쌍삼차삽치
image enlargement%B-spline curve%edge detection%bi-cubic interpolation
图像放大和缩小处理在实际生活中具有广泛的应用,常用的图像处理软件普遍采用插值方法进行放大和缩小,各种插值算法的实现是目前研究的热点.提出了基于三次B样条函数的插值算法,采用不同于传统算法的非均匀参数化方法,使得插值后的图像能够保持较高的清晰度和平滑度.针对图像边缘处的锯齿现象,该算法在图像插值时对边缘像素采用双三次插值,优化了图像边缘的视觉效果.实验结果表明,使用该算法放大后的图像平滑清晰,消除了图像边缘处的锯齿效应,取得了良好的效果.
圖像放大和縮小處理在實際生活中具有廣汎的應用,常用的圖像處理軟件普遍採用插值方法進行放大和縮小,各種插值算法的實現是目前研究的熱點.提齣瞭基于三次B樣條函數的插值算法,採用不同于傳統算法的非均勻參數化方法,使得插值後的圖像能夠保持較高的清晰度和平滑度.針對圖像邊緣處的鋸齒現象,該算法在圖像插值時對邊緣像素採用雙三次插值,優化瞭圖像邊緣的視覺效果.實驗結果錶明,使用該算法放大後的圖像平滑清晰,消除瞭圖像邊緣處的鋸齒效應,取得瞭良好的效果.
도상방대화축소처리재실제생활중구유엄범적응용,상용적도상처리연건보편채용삽치방법진행방대화축소,각충삽치산법적실현시목전연구적열점.제출료기우삼차B양조함수적삽치산법,채용불동우전통산법적비균균삼수화방법,사득삽치후적도상능구보지교고적청석도화평활도.침대도상변연처적거치현상,해산법재도상삽치시대변연상소채용쌍삼차삽치,우화료도상변연적시각효과.실험결과표명,사용해산법방대후적도상평활청석,소제료도상변연처적거치효응,취득료량호적효과.
Image enlargement and reduction are widely applied in real life. The popular image processing software commonly carries out magnification and reduction by interpolation methods. The realization of a variety of interpolation algorithms is now a hotspot for research. Now a new interpolation algorithm based on the non-uniform B-spline curve was proposed. By this way which applies a non-uniform parameterization method different from the traditional algorithms,the objective image after interpolation can maintain a higher resolution and good smoothness. As for the serrated phenomenon on image edges,the algorithm interpolates the image edges with the bi-cubic algorithm when interpolating. Thus,the visual effect on edges can be optimized. The experimental results show that the image becomes clearer and smoother by the new way. On the image edges,the serrated phenomenon is eliminated and a good visual effect is achieved.
