Face Detection from IronPython

Note: This example is based on Emgu CV 1.4.0.0

Assume that you have followed everything from [[Setting up Emgu CV and IronPython]]. This example is going to show you how to do face detection from IronPython.

First copy the lena.jpg file from [[OpenCV]] sample directory to the IronPython folder. Then copy the haarcascade_frontalface_alt2.xml file to the IronPython folder as well. Then follow the steps below:

*Create the detector by calling
<source lang="python">
detector = HaarCascade("haarcascade_frontalface_alt2.xml")
</source>
*Read the image 
<source lang="python">
image = Image[Gray, Byte]("lena.jpg")
</source>
*Detect the objects
<source lang="python">
objectsDetected = image.DetectHaarCascade(detector)[0]
</source>
*Draw the objects
<source lang="python">
for obj in objectsDetected: image.Draw[float](obj, Gray(255), 1)
</source>
*Display the image
<source lang="python">
ImageViewer.Show(image)
</source>

[[image:IronPythonFaceDetect.png|300px|center|thumb|Face Detection from IronPython]]