「java照片识别」java识别图片内容
今天给各位分享java照片识别的知识，其中也会对java识别图片内容进行解释，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识别照片是彩色还是黑白照
你可以判断图片的其中一个像素点，彩色图一般都是RGB组合成的，格式是那种3*3的矩阵，而黑白图像的像素点是通过一个固定的公式转换来的，转换后的像素点是1*3的矩阵
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如何判断文件是否为图片
java中提供了ImageInputStream类来对文件是否为图片进行判断，示例如下：
/**
* 判断文件是否为图片br
* br
* @param pInput 文件名br
* @param pImgeFlag 判断具体文件类型br
* @return 检查后的结果br
* @throws Exception
*/
public static boolean isPicture(String pInput,
String pImgeFlag) throws Exception{
// 文件名称为空的场合
if(Check.isNull(pInput)){
// 返回不和合法
return false;
}
// 获得文件后缀名
String tmpName = pInput.substring(pInput.lastIndexOf(".") + 1,
pInput.length());
// 声明图片后缀名数组
String imgeArray [][] = {
{"bmp", "0"}, {"dib", "1"}, {"gif", "2"},
{"jfif", "3"}, {"jpe", "4"}, {"jpeg", "5"},
{"jpg", "6"}, {"png", "7"} ,{"tif", "8"},
{"tiff", "9"}, {"ico", "10"}
};
// 遍历名称数组
for(int i = 0; iimgeArray.length;i++){
// 判断单个类型文件的场合
if(! Check.isNull(pImgeFlag)
imgeArray [i][0].equals(tmpName.toLowerCase())
imgeArray [i][1].equals(pImgeFlag)){
return true;
}
// 判断符合全部类型的场合
if(Check.isNull(pImgeFlag)
imgeArray [i][0].equals(tmpName.toLowerCase())){
return true;
}
}
return false;
}
java照片识别的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于java识别图片内容、java照片识别的信息别忘了在本站进行查找喔。