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pythonopencvcrop

Crop the region inside the rectangular face detection box using the top-left corner and bottom-right corner of rectangle

I want to crop faces which are boxed using cv2.rectangle.

I tried :

faces = face_cascade.detectMultiScale(gray_image, 1.25, 6)

but this code is detecting only 1 face for this image but when I used another code :

boxes = face_recognition.face_locations(rgb,model="hog")

it returned me 3 faces with values top,right,bottom,left but I dont know how to crop an image using these values(top,right,bottom,left). Any help will be appreciated.

I am using:

Python- 2.7

OpenCv- 3.1.0

Solution

  • In the question, boxes have the top, right, bottom, left values of the detected face, so to crop that area with the given top, right, bottom, left values I used PIL.Image.crop():

    Then the code will be like this:

        from PIL import Image
    img = Image.open("path/to/file")       
    crop_pic = img.crop( ( left, top, right, bottom ) )        
    crop_pic.show()