/**
* 对图片裁剪，并把裁剪完蛋新图片保存 。
*
* @param srcpath: 被裁减的图片完整路径
* @param tarpath: 已裁减的新图片保存完整的路径
* @param x: 裁减矩形区域左上顶点水平位移
* @param y: 裁减矩形区域左上顶点垂直位移
* @param width: 裁减矩形区域的宽度
* @param height: 裁减矩形区域的高度
*/
public static void cut(String srcpath, String tarpath, int x, int y, int width, int height) {
try {
// 读取图片文件
FileInputStream is = new FileInputStream(srcpath);
// 获取图片流
ImageInputStream iis = ImageIO.createImageInputStream(is);
// 转化成输出流
BufferedImage outputImage = getSubimage(ImageIO.read(iis), x, y, width, height);
// 保存新图片
if (null != outputImage) {
ImageIO.write(outputImage, "jpg", new File(tarpath));
}
} catch (IOException e) {
e.printStackTrace();
}
}
public static BufferedImage getSubimage(BufferedImage inputImage, int x, int y, int width, int height) {
return getSubimage(inputImage, new Rectangle(x, y, width, height));
}
public static BufferedImage getSubimage(BufferedImage inputImage, Rectangle rect) {
if (rect.x < 1 || rect.y < 1 || rect.x > inputImage.getWidth() || rect.y > inputImage.getHeight()) {
return null;
}
int x = Math.min(inputImage.getWidth(), rect.x);
int y = Math.min(inputImage.getHeight(), rect.y);
int width = Math.min(inputImage.getWidth() - x, rect.width);
int height = Math.min(inputImage.getHeight() - y, rect.height);
return inputImage.getSubimage(x, y, width, height);
}
