Hello,
Here is the web application to detect the face on the image .Face Detection is does by open CV (open source Computer vision).
It is a library programming unit aimed at facial Recognition, motion detection.
Download open CV here http://www.brothersoft.com/opencv-20868.html and install it Here is the link for face detection in windows application .http://www.codeproject.com/KB/library/eyes.aspx?fid=990485&df=90&mpp=25&noise=3&sort=Position&view=Quick&fr=51&select=2502155.
The code that Modified from window application to web application.
To execute the application
Create Images Folder in the path of your website , place sample image as test.jpg .
Here is the code for aspx page
Add the following controls : file upload , Button,Image , HiddenField
Here is the code for aspx.cs page
public partial class _Default : System.Web.UI.Page
{
private string fileName;
private Guid imageId;
private Bitmap lastPic;
private clsFaceDetectionWrapper objFaceDetector = null;
private Pen myPen = new Pen(Color.Red, 2.0f);
Graphics picGraphics;
Graphics g;
private string filePath;
protected void Page_Load(object sender, EventArgs e)
{
objFaceDetector = clsFaceDetectionWrapper.GetSingletonInstance();
detectedImage.ImageUrl = Server.MapPath("./images/output.jpg");
}
void DrawRectangle(int lx, int ly, int rx, int ry)
{
g.DrawRectangle(myPen, lx, ly, rx - lx, ry - ly);
}
void DrawCross(int x, int y)
{
}
protected void detectButton_Click(object sender, EventArgs e)
{
imageId = new Guid();
imageId = Guid.NewGuid();
if (imageUpload.HasFile)
{
fileName = imageUpload.FileName.ToString().
Substring(imageUpload.FileName.ToString().LastIndexOf("."));
}
if (fileName.ToLower() == ".jpg" || fileName == ".gif" || fileName == ".jpeg" ||fileName == ".bmp" || fileName == ".png" || fileName == ".tif")
{
if (imageUpload.FileName != "")
{
pathHiddenField.Value = Server.MapPath("./images/" + imageId + "_" + imageUpload.FileName);
imageUpload.PostedFile.SaveAs(Server.MapPath("./images/" + imageId + "_" + imageUpload.FileName));
}
}
lastPic = new Bitmap(pathHiddenField.Value);
g = Graphics.FromImage(lastPic);
// here is the path to plave the cascade folder in the specified path.If Possible place the path cascade file in the execution path else modiy the face locatormethod and its coressponding dependabale method to get the path as arguments
String path = Server.MapPath("./XML/");
if (lastPic != null)
{
int faces = objFaceDetector.WrapDetectFaces(lastPic,path);
unsafe
{
int lx, ly, rx, ry, res;
for (int f = 0; f < faces; f++)
{
objFaceDetector.WrapGetFaceCordinates(f, &lx, &ly, &rx, &ry); g.DrawRectangle(myPen, lx, ly, rx, ry);
}
Response.ContentType = "image/jpeg";
lastPic.Save(Server.MapPath("./Images/Test.jpg"), ImageFormat.Jpeg); } detectedImage.ImageUrl = Server.MapPath("./Images/Test.jpg"); detectedImage.DataBind();
g.Save();
lastPic.Dispose();
g.Dispose();
}
}
To execute the application
Create Images Folder in the path of your website , place sample image as test.jpg .
Here is the code for aspx page
public partial class _Default : System.Web.UI.Page
{
private string fileName;
private Guid imageId;
private Bitmap lastPic;
private clsFaceDetectionWrapper objFaceDetector = null;
private Pen myPen = new Pen(Color.Red, 2.0f);
Graphics picGraphics;
Graphics g;
private string filePath;
protected void Page_Load(object sender, EventArgs e)
{
objFaceDetector = clsFaceDetectionWrapper.GetSingletonInstance();
detectedImage.ImageUrl = Server.MapPath("./images/output.jpg");
}
void DrawRectangle(int lx, int ly, int rx, int ry)
{
g.DrawRectangle(myPen, lx, ly, rx - lx, ry - ly);
}
void DrawCross(int x, int y)
{
}
protected void detectButton_Click(object sender, EventArgs e)
{
imageId = new Guid();
imageId = Guid.NewGuid();
if (imageUpload.HasFile)
{
fileName = imageUpload.FileName.ToString().
Substring(imageUpload.FileName.ToString().LastIndexOf("."));
}
if (fileName.ToLower() == ".jpg" || fileName == ".gif" || fileName == ".jpeg" ||fileName == ".bmp" || fileName == ".png" || fileName == ".tif")
{
if (imageUpload.FileName != "")
{
pathHiddenField.Value = Server.MapPath("./images/" + imageId + "_" + imageUpload.FileName);
imageUpload.PostedFile.SaveAs(Server.MapPath("./images/" + imageId + "_" + imageUpload.FileName));
}
}
lastPic = new Bitmap(pathHiddenField.Value);
g = Graphics.FromImage(lastPic);
// here is the path to plave the cascade folder in the specified path.If Possible place the path cascade file in the execution path else modiy the face locatormethod and its coressponding dependabale method to get the path as arguments
String path = Server.MapPath("./XML/");
if (lastPic != null)
{
int faces = objFaceDetector.WrapDetectFaces(lastPic,path);
unsafe
{
int lx, ly, rx, ry, res;
for (int f = 0; f < faces; f++)
{
objFaceDetector.WrapGetFaceCordinates(f, &lx, &ly, &rx, &ry); g.DrawRectangle(myPen, lx, ly, rx, ry);
}
Response.ContentType = "image/jpeg";
lastPic.Save(Server.MapPath("./Images/Test.jpg"), ImageFormat.Jpeg); } detectedImage.ImageUrl = Server.MapPath("./Images/Test.jpg"); detectedImage.DataBind();
g.Save();
lastPic.Dispose();
g.Dispose();
}
}
I am a passionate programmer and a Software Engineer love blogging and developing applications in Microsoft Technologies.
ConversionConversion EmoticonEmoticon