Tess4J-src

java 图像识别技术Tess4J -3.4.2版本相关Jar包和代码

/**
 * JDeskew
 */
package com.recognition.software.jdeskew;

import java.awt.image.BufferedImage;

public class ImageDeskew {

    /**
     * Representation of a line in the image.
     */
    public class HoughLine {

        // count of points in the line
        public int count = 0;
        // index in matrix.
        public int index = 0;
        // the line is represented as all x y that solve y * cos（alpha） - x *
        // sin（alpha） = d
        public double alpha;
        public double d;
    }
    // the source image
    private BufferedImage cImage;
    // the range of angles to search for lines
    private double cAlphaStart = -20;
    private double cAlphaStep = 0.2;
    private int cSteps = 40 * 5;
    // pre-calculation of sin and cos
    private double[] cSinA;
    private double[] cCosA;
    // range of d
    private double cDMin;
    private double cDStep = 1.0;
    private int cDCount;
    // count of points that fit in a line
    private int[] cHMatrix;

    // constructor
    public ImageDeskew（BufferedImage image） {
        this.cImage = image;
    }

    // calculate the skew angle of the image cImage
    public double getSkewAngle（） {
        ImageDeskew.HoughLine[] hl;
        double sum = 0.0;
        int count = 0;

        // perform Hough Transformation
        calc（）;
        // top 20 of the detected lines in the image
        hl = getTop（20）;

        if （hl.length >= 20） {
            // average angle of the lines
            for （int i = 0; i < 19; i++） {
                sum += hl[i].alpha;
                count++;
            }
            return （sum / count）;
        } else {
            return 0.0d;
        }
    }

    // calculate the count lines in the image with most points
    private ImageDeskew.HoughLine[] getTop（int count） {

        ImageDeskew.HoughLine[] hl = new ImageDeskew.HoughLine[count];
        for （int i = 0; i < count; i++） {
            hl[i] = new ImageDeskew.HoughLine（）;
        }

        ImageDeskew.HoughLine tmp;

        for （int i = 0; i < （this.cHMatrix.length - 1）; i++） {
            if （this.cHMatrix[i] > hl[count - 1].count） {
                hl[count - 1].count = this.cHMatrix[i];
                hl[count - 1].index = i;
                int j = count - 1;
                while （（j > 0） && （hl[j].count > hl[j - 1].count）） {
                    tmp = hl[j];
                    hl[j] = hl[j - 1];
                    hl[j - 1] = tmp;
                    j--;
                }
            }
        }

        int alphaIndex;
        int dIndex;
        
        for （int i = 0; i < count; i++） {
            dIndex = hl[i].index / cSteps; // integer division no
            // remainder
            alphaIndex = hl[i].index - dIndex * cSteps;
            hl[i].alpha = getAlpha（alphaIndex）;
            hl[i].d = dIndex + cDMin;
        }

        re

 属性            大小     日期    时间   名称
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     文件       5447  2017-11-14 21:09  3.4.2111相关Jar包和代码1\Tess4J\build.xml

     文件       1328  2017-11-14 21:20  3.4.2111相关Jar包和代码1\Tess4J\dist\README.TXT

     文件   40532498  2017-11-14 21:20  3.4.2111相关Jar包和代码1\Tess4J\dist\tess4j-3.4.2.jar

     文件     233857  2015-12-06 21:56  3.4.2111相关Jar包和代码1\Tess4J\lib\commons-beanutils-1.9.2.jar

     文件     214788  2017-10-31 10:45  3.4.2111相关Jar包和代码1\Tess4J\lib\commons-io-2.6.jar

     文件      61829  2015-12-06 21:56  3.4.2111相关Jar包和代码1\Tess4J\lib\commons-logging-1.2.jar

     文件     180370  2016-03-21 16:47  3.4.2111相关Jar包和代码1\Tess4J\lib\ghost4j-1.0.1.jar

     文件      45280  2015-11-13 17:02  3.4.2111相关Jar包和代码1\Tess4J\lib\hamcrest-core-1.3.jar

     文件    1130070  2014-11-20 05:54  3.4.2111相关Jar包和代码1\Tess4J\lib\itext-2.1.7.jar

     文件     602022  2016-03-03 16:55  3.4.2111相关Jar包和代码1\Tess4J\lib\jai-imageio-core-1.3.1.jar

     文件     144240  2017-05-29 11:51  3.4.2111相关Jar包和代码1\Tess4J\lib\jboss-vfs-3.2.12.Final.jar

     文件      16515  2017-03-21 19:29  3.4.2111相关Jar包和代码1\Tess4J\lib\jcl-over-slf4j-1.7.25.jar

     文件     914597  2016-05-16 18:18  3.4.2111相关Jar包和代码1\Tess4J\lib\jna-4.1.0.jar

     文件       4596  2017-03-21 19:29  3.4.2111相关Jar包和代码1\Tess4J\lib\jul-to-slf4j-1.7.25.jar

     文件     316791  2015-11-13 17:02  3.4.2111相关Jar包和代码1\Tess4J\lib\junit-4.12.jar

     文件    7038364  2017-10-31 11:46  3.4.2111相关Jar包和代码1\Tess4J\lib\lept4j-1.6.2.jar

     文件     489883  2014-11-20 05:54  3.4.2111相关Jar包和代码1\Tess4J\lib\log4j-1.2.17.jar

     文件      23645  2017-03-21 19:29  3.4.2111相关Jar包和代码1\Tess4J\lib\log4j-over-slf4j-1.7.25.jar

     文件     290339  2017-06-01 18:16  3.4.2111相关Jar包和代码1\Tess4J\lib\logback-classic-1.2.3.jar

     文件     471901  2017-06-01 18:16  3.4.2111相关Jar包和代码1\Tess4J\lib\logback-core-1.2.3.jar

     文件        421  2015-11-13 17:02  3.4.2111相关Jar包和代码1\Tess4J\lib\nblibraries.properties

     文件        595  2014-11-20 05:54  3.4.2111相关Jar包和代码1\Tess4J\lib\pdfpagecount.ps

     文件      41203  2017-03-21 19:29  3.4.2111相关Jar包和代码1\Tess4J\lib\slf4j-api-1.7.25.jar

     文件   16789504  2017-10-04 10:24  3.4.2111相关Jar包和代码1\Tess4J\lib\win32-x86\gsdll32.dll

     文件    2224128  2017-10-12 08:02  3.4.2111相关Jar包和代码1\Tess4J\lib\win32-x86\libtesseract3051.dll

     文件   18541568  2017-10-04 10:22  3.4.2111相关Jar包和代码1\Tess4J\lib\win32-x86-64\gsdll64.dll

     文件    2860032  2017-10-12 08:02  3.4.2111相关Jar包和代码1\Tess4J\lib\win32-x86-64\libtesseract3051.dll

     文件     601866  2014-11-20 05:54  3.4.2111相关Jar包和代码1\Tess4J\lib\xmlgraphics-commons-1.5.jar

     文件      81334  2017-10-12 08:00  3.4.2111相关Jar包和代码1\Tess4J\nbproject\build-impl.xml

     文件        475  2017-10-12 08:00  3.4.2111相关Jar包和代码1\Tess4J\nbproject\genfiles.properties

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