版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/axman/article/details/75387141
BufferedImage src = ImageIO.read(new File("/Users/axman/Desktop/111.jpg")); int w = src.getWidth(); int h = src.getHeight(); double scala = 1.5d; int dw = (int)Math.round(w * scala); int dh = (int)Math.round(h * scala); BufferedImage dest = new BufferedImage(dw, dh, BufferedImage.TYPE_INT_RGB); for (int i = 0; i != dw; ++i) { for (int j = 0; j != dh; ++j) { int x = (int)Math.round(i / scala); int y = (int)Math.round(j / scala); if (x < w && x >= 0 && y < h && y >= 0) { dest.setRGB(i, j, src.getRGB(x, y)); } } } ImageIO.write(dest, "JPEG", new File("/Users/axman/Desktop/222.jpg"));