当然可以。
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一、纯JAVA开发的技术可行性，即JAVA是否能够实现图像识别的各种算法。
二、如果第一点没有问题，纯JAVA与C++相比，开发效率上的差异。效率要低很多，和具体问题有关。
三、如果第一点没有问题且第二点差异不太大时，纯JAVA与C++相比，相同算法的情况下，软件运行效率的差异。运行效率的差异也很大，也是和具体的算法有关。
你需要关注的主要是这个类：java.awt.image.BufferedImage
可以查阅相关的API。
java图像处理技术在《java核心技术8 下卷》中有比较详细的介绍。
相关技术要求和注意事项：RGB标准、ICC配置特性、
建议如果进行像素识别的话可以选取关键点的识别方式、而且确认像素是否符合要求使用RGB的范围识别而非精确识别。
至于具体的识别操作过程，需要你详细定义开始识别的位置标准(规定的或者识别图像获取)、边界标准、大小(识别块得SIZE)、分组(给识别块确定属性)等
int rgbR;
int rgbG;
int rgbB;
int minx = 0;
int miny = 0;
try {
File file = new File("E:\\dd.png");
BufferedImage image = ImageIO.read(file);
int width = image.getWidth();//图片宽度
int height = image.getHeight();//图片高度
for (int i = minx; i width; i++) {
for (int j = miny; j height; j++) {
int pixel = image.getRGB(i, j); // 下面三行代码将一个数字转换为RGB数字
rgbR = (pixel 0xff0000) 16;
rgbG = (pixel 0xff00) 8;
rgbB = (pixel 0xff);
System.out.println("i=" + i + ",j=" + j + ":(" + rgbR + "," + rgbG + "," + rgbB + ")");
}
}
System.out.println("图片宽度为："+width+",高度为:"+height);
} catch (IOException e) {
System.out.println("读取文件出错");
e.printStackTrace();
}
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;
}
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