本文实例为大家分享了java实现图片拼接的具体代码，供大家参考，具体内容如下
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/**
* 拼接图片（注：图片需长宽一致）
* @param files img1 ，img2
* @param type 1：横向拼接 2：纵向拼接
* @param targetfile 合成新的图片地址
*/
public static void mergeimage(string[] files, int type, string targetfile) {
int len = files.length;
if (len < 1) {
throw new runtimeexception("图片数量小于1");
}
file[] src = new file[len];
bufferedimage[] images = new bufferedimage[len];
int[][] imagearrays = new int[len][];
for (int i = 0; i < len; i++) {
try {
src[i] = new file(files[i]);
images[i] = imageio.read(src[i]);
} catch (exception e) {
throw new runtimeexception(e);
}
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 {
bufferedimage imagenew = new bufferedimage(newwidth, newheight, bufferedimage.type_int_rgb);
int height_i = 0;
int width_i = 0;
for (int i = 0; i < images.length; i++) {
if (type == 1) {
imagenew.setrgb(width_i, 0, images[i].getwidth(), newheight, imagearrays[i], 0,
images[i].getwidth());
width_i += images[i].getwidth();
} else if (type == 2) {
imagenew.setrgb(0, height_i, newwidth, images[i].getheight(), imagearrays[i], 0, newwidth);
height_i += images[i].getheight();
}
}
//输出想要的图片
imageio.write(imagenew, targetfile.split("\\.")[1], new file(targetfile));
} catch (exception e) {
throw new runtimeexception(e);
}
}
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/qq_38114563/article/details/81408417