As mentioned in the paper, while training the classifier 24x24
images are used.
But for face detection on image of size 1024x1600
which contains face of size 500x500
how is the face detected if we are using 24x24
windows to detect face?
As mentioned in the paper, while training the classifier 24x24
images are used.
But for face detection on image of size 1024x1600
which contains face of size 500x500
how is the face detected if we are using 24x24
windows to detect face?
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The algorithm disassembles the image into 24-by-24 sub-images and in each sub-image, he tries to find a face. Due to this fact, the viola jones algorithm can find more than one face in the image.
I find a really good summary of the viola jones algorithm process https://drive.google.com/file/d/1Sxfp5k249eoxB57cbcS9vl4zi3gBe0la/view
suumery
you can read more about that here Image Analysis: 15th Scandinavian Conference, SCIA 2007, Aalborg, Denmark