/// <summary>
/// author:liusimawen
/// date:2018-04-19
/// 单个字符识别按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button3_Click_1(object sender, EventArgs e)
{
Bitmap bmpTest = (Bitmap)pictureBox1.Image;
//灰度化
bmpTest = MyUtils.ToGray(bmpTest);
//二值化
bmpTest = PicUtils.Sauvola(bmpTest);
//图像去躁
bmpTest = bmpTest.Clone(new Rectangle(0, 0, bmpTest.Width, bmpTest.Height), PixelFormat.Format24bppRgb);
bmpTest = MyUtils.MyGussianBlur(bmpTest);
MyUtils.ClearNoise(bmpTest, MyUtils.GetDgGrayValue(bmpTest), 4);//按照需要进行设置
//图像分割，应该返回4个子图像
List <Bitmap> littleBmpArray = PicUtils.SimpleCutTo4(bmpTest);//CutImg(cutbmp);
//如果子图像不为4个，则跳过本图，继续下一张图片
if (littleBmpArray.Count != 4)
{
return;
}
//再对子图像去除多余的空白部分
//一张图像里的所有字符
StringBuilder resultSb = new StringBuilder();
for (int lba = 0; lba < littleBmpArray.Count; lba++)
{
if (littleBmpArray[lba] == null)
{
continue;
}
//旋转纠正
littleBmpArray[lba] = DegreeCorrect(littleBmpArray[lba]);
//System.Threading.Thread.Sleep(2000);
char resultChar = PicUtils.regANN(littleBmpArray[lba]);
resultSb.Append(resultChar);
}
resullt_box.Text = resultSb.ToString();
}
/// <summary>
/// author:liusimawen
/// date:2018-04-19
/// 识别--批量识别
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void 批量识别ToolStripMenuItem_Click(object sender, EventArgs e)
{
DialogResult dr = MessageBox.Show("是否继续识别", "确认框", MessageBoxButtons.OKCancel);
if (dr == DialogResult.OK)
{
DateTime dtStart = DateTime.Now;
//先清空记事本中的记录
using (System.IO.StreamWriter file = new System.IO.StreamWriter
(@"F:\毕业设计2018届刘锋\OOP.PictureAnalyse\myCharSamples\A16-浪潮-验证码样本数据\验证码样本数据\data-3\testresult1.txt", false))//true表示追加在末尾，false为覆盖
{
//file.Write(line);//直接追加文件末尾，不换行
file.Write("");// 直接追加文件末尾，换行
}
//1.首先要实现批量读取图片F:\毕业设计2018届刘锋\myCharSamples\train
//获取文件夹下的所有图片路径名："F:\\毕业设计2018届刘锋\\OOP.PictureAnalyse\\testImages\\0000.jpg"
string[] files = Directory.GetFiles(@"F:\毕业设计2018届刘锋\OOP.PictureAnalyse\myCharSamples\A16-浪潮-验证码样本数据\验证码样本数据\data-3\test500", "*.jpg", SearchOption.AllDirectories);
//所有的待测图像
for (int i = 0; i < files.Length; i++)
{
try
{
Bitmap bmpTest = (Bitmap)Image.FromFile(files[i]);
//灰度化
bmpTest = MyUtils.ToGray(bmpTest);
//二值化
bmpTest = PicUtils.Sauvola(bmpTest);
//图像去躁
bmpTest = bmpTest.Clone(new Rectangle(0, 0, bmpTest.Width, bmpTest.Height), PixelFormat.Format24bppRgb);
bmpTest = MyUtils.MyGussianBlur(bmpTest);
MyUtils.ClearNoise(bmpTest, MyUtils.GetDgGrayValue(bmpTest), 4);//按照需要进行设置
Byte[,] BinaryArray = PicUtils.ToBinaryArray(bmpTest);
ImgBoundary Boundary = SegmentFunction.getImgBoundary(BinaryArray);
//jpg格式转换为bmp，方式SetPixel方法报错
bmpTest = bmpTest.Clone(new Rectangle(Boundary.widthMin, Boundary.heightMin,
Boundary.widthMax - Boundary.widthMin, Boundary.heightMax - Boundary.heightMin), PixelFormat.Format24bppRgb);
//图像分割，应该返回4个子图像
List <Bitmap> littleBmpArray = PicUtils.SimpleCutTo4(bmpTest);//CutImg(cutbmp);
//如果子图像不为4个，则跳过本图，继续下一张图片
if (littleBmpArray.Count != 4)
{
continue;
}
int nameIndex = files[i].LastIndexOf(@"\"); //取出最后一个"\"的索引
string fileName = files[i].Substring(nameIndex + 1, 4); //取出图像的名称
char[] arrayName = fileName.ToArray(); //转换为字符数组
//再对子图像去除多余的空白部分
//一张图像里的所有字符
StringBuilder resultSb = new StringBuilder();
for (int lba = 0; lba < littleBmpArray.Count; lba++)
{
if (littleBmpArray[lba] == null)
{
continue;
}
//旋转纠正
littleBmpArray[lba] = DegreeCorrect(littleBmpArray[lba]);
char resultChar = PicUtils.regANN(littleBmpArray[lba]);
resultSb.Append(resultChar);
}
//testresult.txt存储识别结果：正确字符 识别结果
using (System.IO.StreamWriter file = new System.IO.StreamWriter
(@"F:\毕业设计2018届刘锋\OOP.PictureAnalyse\myCharSamples\A16-浪潮-验证码样本数据\验证码样本数据\data-3\testresult1.txt", true))//true表示追加在末尾，false为覆盖
{
//file.Write(line);//直接追加文件末尾，不换行
file.WriteLine(fileName + " " + resultSb);// 直接追加文件末尾，换行
}
}
catch (Exception ex)
{
//遇到异常就跳过，处理下一张图片
continue;//对应最外面的for循环
}
}
DateTime dtEnd = DateTime.Now;
TimeSpan ts = dtEnd - dtStart;
MessageBox.Show("识别完成，已保存入testresult1.txt！用时" + ts.Minutes);
}
}
