一種新的圖像實時放大技術(shù)
A New Real-Time Image Zooming Method
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摘要: 該文提出了一種視頻圖像整數(shù)倍放大的實時插值方案一改進的像素填充插值法，給出了其基本原理及軟、硬件實現(xiàn)方法.與重復(fù)插值法、線性插值法、像素填充插值法和小波放大法等進行了比較，并給出了放大后圖像的主觀和客觀評價。結(jié)果表明改進的像素填充插值法的效果明顯優(yōu)于其他實時放大方法，且其硬件實現(xiàn)并不復(fù)雜，可用于視頻圖像實時放大的軟、硬件設(shè)計。
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關(guān)鍵詞:
- 圖像放大; 插值法; 像素填充插值法; 小波放大法
Abstract: A kind of interpolator, called the modified pixel-filled interpolator, is advanced for images enlarged the same integer times in lines as that in columns. The principle a.iul the implement method in software and hardware of the interpolator are given, Comparing with the nearest neighbor interpolator, the bilinear interpolator, the pixol-exchanged-intcrpolator and the wavelet-based zooming methods, the effects of enlarged images with this interpolator are better according to the subjective and objective evaluation to the enlarged images. Its implementation in software and hardware is easy, and can be applied to all kinds of image zooming. -
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