基于边缘特性保持的图像放大算法

Edge-Preserved Image Enlargement Method

伴随着数字设备的升级，人们对数字图像的质量要求也随之不断提高。如果需要对获取的物体图像中某些特定的细节进行仔细观察时，需要对图像进行放大，然而在图片放大过程中会产生锯齿状和图像模糊的现象，为了解决上述实际问题，提出通过边缘检测算法、内插算法和平滑化修补算法对边缘图像进行增强，进而进行图片放大。实验验证，提出的算法可以使图像放大的效果得到明显的改善。

With the development of digital device, people＇s requirement about the quality of digital images is improved. If the object of the image needed to look closely,it required to en- large. However, there will be some problems in digital image processing. A low-resolution image which is displayed on a high resolution digital device requires amplification process,and the enlarged image results in jagged and image blurring phenomenon. In order to address the practical problems, proposes edge detection algorithm, edge-adaptive interpolation algorithm and edge smoothing algorithm to enlarge image. The simulations prove that the proposed method can effectively modify the image quality.