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高手支招:12306验证码识别知多少

减小字体 增大字体 作者:华军  来源:华军资讯  发布时间:2019-2-3 7:04:24

昨日,对验证码进行了升级,遭到不少用户的调侃为“干扰线”,而对于12306验证码,大家又有多少常识。 验证码验证码代码一:  package org.image.test.one;  import java.awt.Image;  import java.awt.Toolkit;  import java.awt.color.ColorSpace;  import java.awt.geom.AffineTransform;  import java.awt.image.AffineTransformOp;  import java.awt.image.BufferedImage;  import java.awt.image.ColorConvertOp;  import java.awt.image.ColorModel;  import java.awt.image.ConvolveOp;  import java.awt.image.Kernel;  import java.awt.image.MemoryImageSource;  import java.awt.image.PixelGrabber;  import java.awt.image.RescaleOp;  import java.io.File;  import java.io.FileInputStream;  import java.io.IOException;  import javax.imageio.ImageIO;  public class MyImgFilter {  BufferedImage image;  private int iw, ih;  private int[] pixels;  public MyImgFilter(BufferedImage image) {  this.image = image;  iw = image.getWidth();  ih = image.getHeight();  pixels = new int[iw * ih];  }  /** 图像二值化 */  public BufferedImage changeGrey() {  PixelGrabber pg = new PixelGrabber(image.getSource(), 0, 0, iw, ih, pixels, 0, iw);  try {  pg.grabPixels();  } catch (InterruptedException e) {  e.printStackTrace();  }  // 设定二值化的域值,默认值为100  int grey = 100;  // 对图像进行二值化处理,Alpha值保持不变  ColorModel cm = ColorModel.getRGBdefault();  for (int i = 0; i < iw * ih; i++) {  int red, green, blue;  int alpha = cm.getAlpha(pixels[i]);  if (cm.getRed(pixels[i]) > grey) {  red = 255;  } else {  red = 0;  }  if (cm.getGreen(pixels[i]) > grey) {  green = 255;  } else {  green = 0;  }  if (cm.getBlue(pixels[i]) > grey) {  blue = 255;  } else {  blue = 0;  }  pixels[i] = alpha << 24 | red << 16 | green << 8 | blue; // 通过移位重新构成某一点像素的RGB值  }

高手支招:12306验证码识别知多少