ASP.NET下自动生成规定大小等比例缩略图的方法

Method for automatically generating thumbnail size proportion of provisions under ASP.NET

针对原始图像大小和比例不同会导致生成的缩略图不成比例,变形等问题。本文介绍了一种在ASP.NET环境下根据原始图像自动生成缩略图的方法。该方法选择合适的参数对已有图像进行重新绘制,生成相应规定大小和等比例的缩略图。

The original image size and different proportion will lead to the generation of thumbnail disproportionately,deformation problems.This paper introduces a method in the ASP.NET environment according to the original image automatically generated thumbnails.The method to choose proper parameters of existing image is redrawn,generate the corresponding provisions of the size and proportion of the thumbnail.