实现对图片数字水印的添加和缩放，并且包含数字和图片水印的添加。而且增加了缩放功能。-Implementation of digital watermarking to add the picture and zoom, and includes figures and images watermark to add. And increased the zoom feature.

java实现的邻近插值的图像缩放算法，代码简单易懂可以指定n为图像放大或缩小倍数-java implementation neighbor interpolation image scaling algorithm, code n is straightforward to specify multiple images zoom in or out