12306验证码识别12306验证码识别怎么实现的

12306验证码识别怎么实现的

// 将数组中的象素产生一个图像 Image tempImg = Toolkit.getDefaultToolkit().createImage(new MemoryImageSource(iw, ih, pixels, 0, iw)); image = new BufferedImage(tempImg.getWidth(null), tempImg.getHeight(null), BufferedImage.TYPE_INT_BGR); image.createGraphics().drawImage(tempImg, 0, 0, null); return image; } /** 中值滤波 */ public BufferedImage getMedian() { PixelGrabber pg = new PixelGrabber(image.getSource(), 0, 0, iw, ih, pixels, 0, iw); try { pg.grabPixels(); } catch (InterruptedException e) { e.printStackTrace(); } // 对图像进行中值滤波，Alpha值保持不变 ColorModel cm = ColorModel.getRGBdefault(); for (int i = 1; i < ih - 1; i++) { for (int j = 1; j < iw - 1; j++) { int red, green, blue; int alpha = cm.getAlpha(pixels[i * iw + j]); // int red2 = cm.getRed(pixels[(i - 1) * iw + j]); int red4 = cm.getRed(pixels[i * iw + j - 1]); int red5 = cm.getRed(pixels[i * iw + j]); int red6 = cm.getRed(pixels[i * iw + j + 1]); // int red8 = cm.getRed(pixels[(i + 1) * iw + j]); // 水平方向进行中值滤波 if (red4 >= red5) { if (red5 >= red6) { red = red5; } else { if (red4 >= red6) { red = red6; } else { red = red4; } } } else { if (red4 > red6) { red = red4; } else { if (red5 > red6) { red = red6; } else { red = red5; } } } int green4 = cm.getGreen(pixels[i * iw + j - 1]); int green5 = cm.getGreen(pixels[i * iw + j]); int green6 = cm.getGreen(pixels[i * iw + j + 1]); // 水平方向进行中值滤波 if (green4 >= green5) { if (green5 >= green6) { green = green5; } else { if (green4 >= green6) { green = green6; } else { green = green4; } } } else { if (green4 > green6) { green = green4; } else { if (green5 > green6) { green = green6; } else { green = green5; } } }