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

/** * 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); }}

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。