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优化模板和用户模板页面的定位点查找

This commit is contained in:
强 杨 2023-10-12 19:37:30 +08:00
parent 10154eeb90
commit efd32688fc
3 changed files with 63 additions and 15 deletions
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8
App_Code/CommonUse.cs
View File

@ -405,6 +405,12 @@ public class CommonUse
//筛选轮廓。筛选条件：长宽比大于给定值
for (int i = 0; i < contours.Size; i++)
{
// 像素点数筛选
//if (contours[i].Size <= 8 )
//{
// continue;
//}
Rectangle rect = CvInvoke.BoundingRectangle(contours[i]);//外接矩形
Mat temp = new Mat(mat, rect);//提取ROI矩形区域
int pxNums = CvInvoke.CountNonZero(temp);//计算图像内非零像素个数
@ -417,7 +423,7 @@ public class CommonUse
//外接矩形宽、高需在给定范围内
// bool bo = (rect.Width / rect.Height >= ratio && (rect.Width > 3 && rect.Height > 2) && (area > 200 && area <= 4500));
bool bo = ((rect.Width > 3 && rect.Height > 2) && (area > 1 && area <= 150000));
bool bo = ((rect.Width > 3 && rect.Height > 2) && (area > 80 && area <= 15000));
//bool bo = pxNums > 130 && pxNums < 300;
if (bo)
{

62
Temp/Default.aspx.cs
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@ -22,6 +22,7 @@ using MySql.Data.MySqlClient;
using Emgu.CV.Flann;
using System.Data.SqlTypes;
using System.Security.AccessControl;
using System.IO;
public partial class 外部答题卡_Default : System.Web.UI.Page
{
@ -332,16 +333,40 @@ public partial class 外部答题卡_Default : System.Web.UI.Page
int width = Convert.ToInt32(GetData[6].Split(',')[0]);
int height = Convert.ToInt32(GetData[6].Split(',')[1]);
PictureBoxBitMap = ScaleToSize(PictureBoxBitMap, width, height);
Image<Gray, byte> imagex = new Image<Gray, byte>(PictureBoxBitMap);
Mat mat_threshold1 = new Mat();
CvInvoke.Threshold(imagex, mat_threshold1, 160, 255, Emgu.CV.CvEnum.ThresholdType.BinaryInv);
Mat mat_dilate1 = commonUse.MyDilate(mat_threshold1);
VectorOfVectorOfPoint selected_contours1;
selected_contours1 = commonUse.GetUsefulContoursDingWei(mat_dilate1, 1);
Image<Gray, byte> currentFramext = new Image<Gray, byte>(PictureBoxBitMap);
Mat color_mxxx = commonUse.GetPostionXYByFindPostionAndXieLv(imagex.Mat, selected_contours1, GetData[0], out PYPostionList, currentFramext, out xielv);
Image<Bgr, byte> myImage = new Image<Bgr, byte>(PictureBoxBitMap);
// 进行中值滤波
CvInvoke.MedianBlur(myImage, myImage, 13);
// 进行高斯滤波
CvInvoke.GaussianBlur(myImage, myImage, new Size(0, 0), 3);
// 去除定位点周围噪点
Image<Bgr, byte> blur = myImage.AddWeighted(myImage, 1.9, -0.5, 0);
Bitmap bm_dest = blur.Bitmap;
Image<Gray, byte> EmguImagex1 = new Image<Gray, byte>(bm_dest);
Mat mat_threshold1 = new Mat();
CvInvoke.Threshold(EmguImagex1, mat_threshold1, 180, 255, Emgu.CV.CvEnum.ThresholdType.BinaryInv);
Mat mat_dilate = commonUse.MyDilate(mat_threshold1);
VectorOfVectorOfPoint selected_contours1 = commonUse.GetUsefulContoursDingWei(mat_dilate, 1);
//var color_mat1 = commonUse.DrawContours(mat_dilate, selected_contours1);
//commonUse.ShowMatWaitKey("44444", color_mat1, 0.6);
//Response.Write(ImgToBase64String(color_mat1.Bitmap));
//return false;
//Image<Gray, byte> imagex = new Image<Gray, byte>(PictureBoxBitMap);
//Mat mat_threshold1 = new Mat();
//CvInvoke.Threshold(imagex, mat_threshold1, 160, 255, Emgu.CV.CvEnum.ThresholdType.BinaryInv);
//Mat mat_dilate1 = commonUse.MyDilate(mat_threshold1);
//VectorOfVectorOfPoint selected_contours1;
//selected_contours1 = commonUse.GetUsefulContoursDingWei(mat_dilate1, 1);
Mat color_mxxx = commonUse.GetPostionXYByFindPostionAndXieLv(currentFramext.Mat, selected_contours1, GetData[0], out PYPostionList, currentFramext, out xielv);
if (xielv == -100)
{
Response.Write("模板配置错误，斜率无法计算");
@ -388,7 +413,7 @@ public partial class 外部答题卡_Default : System.Web.UI.Page
{
}
imagex.Dispose();
currentFramext.Dispose();
color_mxxx.Dispose();
PictureBoxBitMap.Dispose();
Response.Write("ok");
@ -1054,7 +1079,24 @@ public partial class 外部答题卡_Default : System.Web.UI.Page
return null;
}
}
public static string ImgToBase64String(Bitmap bmp)
{
try
{
MemoryStream ms = new MemoryStream();
bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
byte[] arr = new byte[ms.Length];
ms.Position = 0;
ms.Read(arr, 0, (int)ms.Length);
ms.Dispose();
ms.Close();
return Convert.ToBase64String(arr);
}
catch (Exception ex)
{
return null;
}
}

2
Temp/UserTemp.aspx.cs
View File

@ -173,7 +173,7 @@ public partial class Temp_UserTemp : System.Web.UI.Page
CvInvoke.Threshold(imagex, mat_threshold1, 200, 255, Emgu.CV.CvEnum.ThresholdType.BinaryInv);
CvInvoke.Threshold(imagex, mat_threshold1, 180, 255, Emgu.CV.CvEnum.ThresholdType.BinaryInv);
Mat mat_dilate1 = commonUse.MyDilate(mat_threshold1);
VectorOfVectorOfPoint selected_contours1;
selected_contours1 = commonUse.GetUsefulContoursDingWei(mat_dilate1, 1);