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联合双边图像插值

DOI: 10.11834/jig.20111204

Keywords: 图像插值,双边滤波,联合双边上采样,边缘保护

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Abstract:

传统的图像插值算法及其改进算法都存在边缘模糊、边缘锯齿或局部扭曲变形等问题。提出联合双边图像插值,首先采用传统插值算法对原始图像进行插值,将其结果作为导引图像对原始图像进行联合双边上采样,并给出其核函数方差的自适应确定算法。实验结果表明,与传统插值算法相比,该算法明显改进插值图像质量,与已有的绝大多数非线性改进算法相比还提高了插值速度。

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