【摘要】 针对图像放大后出现边缘模糊的现象,论文考察了典型边缘的特征,利用图像的梯度信息和双曲正切函数的性质,提出了一种较好地拟合任意方向、陡度和幅度的边缘,因此能够保持边缘锐度的自适应图像放大算法。实验结果表明该算法的有效性。更多还原

【Abstract】 To deblur edge after image magnifying,an adaptive edge sharpness preserving image magnification is put forword,which can fit edges of any direction,gradient and amplitude,utilizing the gradient imgormation of the image and the properties of the hyperbolic tangent function having reviewing the character of a typical edge.The experiments have verified the effectivity of the algorithm in this thesis.更多还原