「java图像文字」java语言图片
今天给各位分享java图像文字的知识，其中也会对java语言图片进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！
本文目录一览：
java 实现图片的文字识别
摘要图像识别是目前很热门的研究领域，涉及的知识很广，包括信息论、模式识别、模糊数学、图像编码、内容分类等等。本文仅对使用Java实现了一个简单的图像文本二值处理，关于识别并未实现。
步骤
建立文本字符模板二值矩阵
对测试字符进行二值矩阵化处理
代码
/*
* @(#)StdModelRepository.java
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package cn.edu.ynu.sei.recognition.util;import java.awt.Image;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import java.util.ArrayList;import java.util.List;import java.util.logging.Level;import java.util.logging.Logger;import javax.imageio.ImageIO;/** * Hold character charImgs as standard model repository.
* @author 88250
* @version 1.0.0.0, Mar 20, 2008
*/
public class StdModelRepository {
/** * hold character images
*/ List charImgs = new ArrayList();
/** * default width of a character
*/ static int width = 16 /** * default height of a character
*/ static int height = 28 /** * standard character model matrix
*/ public int[][][] stdCharMatrix = new int[27][width][height];
/** * Default constructor.
*/ public StdModelRepository() {
BufferedImage lowercase = null try {
lowercase = ImageIO.read(new File("lowercase.png"));
} catch (IOException ex) {
Logger.getLogger(StdModelRepository.class.getName()).
log(Level.SEVERE, null, ex);
}
for (int i = 0 i 26 i++) {
charImgs.add(lowercase.getSubimage(i * width,
0,
width,
height));
}
for (int i = 0 i charImgs.size(); i++) {
Image image = charImgs.get(i);
int[] pixels = ImageUtils.getPixels(image,
image.getWidth(null),
image.getHeight(null));
stdCharMatrix[i] = ImageUtils.getSymbolMatrix(pixels, 0).clone();
ImageUtils.displayMatrix(stdCharMatrix[i]);
}
}
}
/*
* @(#)ImageUtils.java
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package cn.edu.ynu.sei.recognition.util;import java.awt.Image;import java.awt.image.PixelGrabber;import java.util.logging.Level;import java.util.logging.Logger;/** * Mainipulation of image data.
* @author 88250
* @version 1.0.0.3, Mar 20, 2008
*/
public class ImageUtils {
/** * Return all of the pixel values of sepecified codeimage .* @param image the sepecified image
* @param width width of the image
* @param height height of the image
* @return */ public static int[] getPixels(Image image, int width, int height) {
int[] pixels = new int[width * height];
try {
new PixelGrabber(image, 0, 0, width, height, pixels, 0, width).grabPixels();
} catch (InterruptedException ex) {
Logger.getLogger(ImageUtils.class.getName()).
log(Level.SEVERE, null, ex);
}
return pixels;
}
资源来自：
java怎么把图片和文字分开发送到后端
java如何把图片和文字从前端传图片到后端
1.在 eclipse中创建一个web工
程项目。然后在lib文件夹中
添加文件上传需要用到的组合中。
2. FileUploadServlet.java的内
容显示出来。
3.编辑好
FileUploadServlet java文件后
在web.xm文件中配置映射。
如何利用java在图片上添加文字
// 读取模板图片内容
BufferedImage image = ImageIO.read(new FileInputStream("c:\\test.jpg"));
Graphics2D g = image.createGraphics();// 得到图形上下文
g.setColor(Color.BLACK); // 设置画笔颜色
// 设置字体
g.setFont(new Font("宋体", Font.LAYOUT_LEFT_TO_RIGHT, 15));// 写入签名
// 下面这一句中的43，image.getHeight()-10可以改成你要的坐标。
g.drawString("这是新加入的文字", 43, image.getHeight() - 10);
g.dispose();
FileOutputStream out = new FileOutputStream("c:\\test1.jpg");
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(image);
out.close();
希望我的回答能帮助你 谢谢 呵呵 答案补充 肯定了 在一张纸上写字 肯定会自动换行的 否则写外面？逻辑都通不过去~ 答案补充 把你的意思说出了 是不是随便的写字然后就提交 就把字写在了图片上还是？多少字 有没有约束？ 答案补充 g.drawString("这是新加入的文字", 43, image.getHeight() - 10);
在这个做处理 你规定了字体的大小 那么获取字符的长度*大小 一次判断不要大于宽度 否则image.getHeight() - 10++ 你试试 应该可以的 我这里没有Eclipse 答案补充 public class mains {
/**
* @param args
*/
private static int fontsize = 15;
static String jj(String str)
{
String sContent = str;
sContent=sContent.replaceAll(" "," ");
sContent=sContent.replaceAll("br/","/");
sContent=sContent.replaceAll("br","/");
return sContent;
} 答案补充 static void hh(String str)
{
BufferedImage image;
try {
image = ImageIO.read(new FileInputStream("E:\\dian zi za zhi/789.jpg"));
Graphics2D g = image.createGraphics();// 得到图形上下文
g.setColor(Color.BLACK); // 设置画笔颜色
// 设置字体
g.setFont(new Font("宋体", Font.LAYOUT_LEFT_TO_RIGHT, fontsize));// 写入签名
// 下面这一句中的43，image.getHeight()-10可以改成你要的坐标。
String text = jj(str); 答案补充 String [] text1 = text.split("/");
int h = image.getHeight();
int w = image.getWidth();
for(int i=0;itext1.length;i++)
{
g.drawString(text1[i],0,fontsize+i*fontsize);
}
g.dispose();
FileOutputStream out = new FileOutputStream("E:\\dian zi za zhi/789.jpg");
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(image);
out.close(); 答案补充 public static void main(String[] args) {
// TODO Auto-generated method stub
hh("sdakljsdhwwbr/asdasdbr/a");
}
}
试试 可以换行 答案补充 关于 图片的尺寸以及字体是否超出 你自己试着解决下 不要过于依赖问
关于java图像文字和java语言图片的介绍到此就结束了，不知道你从中找到你需要的信息了吗 ？如果你还想了解更多这方面的信息，记得收藏关注本站。
发布于：2022-12-17，除非注明，否则均为原创文章，转载请注明出处。