拍摄证件照的小程序,当你上传一张照片后,他会帮你进行有间隔地拼接图片,这样打印出来的图片再经过裁剪,就是多张证件照了。那么要如何实现呢?不知道我这个方法行不行,如果有其他方法请评论留言。
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class HandleImg {
private static final Logger logger = LoggerFactory.getLogger(HandleImg.class);
public static void main(String[] args) throws Exception {
String filePath = "D:\\AAfile\\";
String path = filePath + "logo.png";
String targetFile=filePath+"out.jpg";
//先横向拼接
hanleImg(path, 2, filePath+"temp.jpg");
//再纵向拼接
hanleImg(filePath+"temp.jpg", 1, targetFile);
}
public static void hanleImg( String path, int type, String targetFile) throws IOException {
File file = new File(path);
//多张图片的拼接
int len = 3;
int XSPACE = 2*(len+1); //x方向间隔数
int YSPACE = 2*(len+1); //y方向间隔数
BufferedImage[] images = new BufferedImage[len];
for(int i = 0; i < len; i++)
images[i] = ImageIO.read(file);
int[][] ImageArrays = new int[len][];
for (int i = 0; i < len; i++) {
int width = images[i].getWidth();
int height = images[i].getHeight();
ImageArrays[i] = new int[width * height];
ImageArrays[i] = images[i].getRGB(0, 0, width, height, ImageArrays[i], 0, width);
}
int newHeight = 0;
int newWidth = 0;
for (int i = 0; i < images.length; i++) {
// 横向
if (type == 1) {
newHeight = newHeight > images[i].getHeight() ? newHeight : images[i].getHeight();
newWidth += images[i].getWidth();
} else if (type == 2) {// 纵向
newWidth = newWidth > images[i].getWidth() ? newWidth : images[i].getWidth();
newHeight += images[i].getHeight();
}
}
if (type == 1 && newWidth < 1) {
return;
}
if (type == 2 && newHeight < 1) {
return;
}
// 生成新图片
try {
int height_i = 0;
int width_i = 0;
if (type == 1) {
BufferedImage ImageNew = new BufferedImage(newWidth+XSPACE, newHeight, BufferedImage.TYPE_INT_RGB);
for (int i = 0; i < images.length; i++) {
ImageNew.setRGB(width_i+2, 0, images[i].getWidth(), newHeight, ImageArrays[i], 0,
images[i].getWidth());
width_i += images[i].getWidth()+2;
}
ImageIO.write(ImageNew, targetFile.split("\\.")[1], new File(targetFile));
logger.info("拼接图片成功!");
} else if (type == 2) {
BufferedImage ImageNew = new BufferedImage(newWidth, newHeight+YSPACE, BufferedImage.TYPE_INT_RGB);
for (int i = 0; i < images.length; i++) {
ImageNew.setRGB(0, height_i+2, newWidth, images[i].getHeight(), ImageArrays[i], 0, images[i].getWidth());
height_i += images[i].getHeight()+2;
}
ImageIO.write(ImageNew, targetFile.split("\\.")[1], new File(targetFile));
logger.info("拼接图片成功!");
}
} catch (Exception e) {
logger.error("拼接图片失败:{}", e);
}
}
}
演示: