Image Magnification Method Based on Gradient Direction and Strength by Wide Pixel Area

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  • 周辺画素におけるエッジ勾配とエッジ強度に着目した濃淡画像の拡大手法
  • シュウヘン ガソ ニ オケル エッジ コウバイ ト エッジ キョウド ニ チャクモクシタ ノウタン ガゾウ ノ カクダイ シュホウ

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The magnification of an image is important and general purposed method for image processing. The typical conventional method for image magnification is the Cubic convolution. This method is often generated a blurred and unclear magnified image. Because spatial features included in an image are not used. This paper proposes a new magnification method by using the spatial features in an objective image that are the gradient direction and the gradient strength by pixel. The experimental results show that the clear magnified images were generated by the proposed method in comparison with by the conventional methods.

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