Added headshot cropper project

headshot_cropper/README.md

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+This tool will take large images of a single person, and crop out just their face.
+I used this tool to crop out the headshots for the robotics club leadership, which couldn't be done with fixed coordinates as the profile pictures were not taken with a tripod. 

headshot_cropper/cropper.py

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+import numpy as np
+import os
+import cv2
+
+extra_dimensions_percent = 0.3
+show_window = False
+draw_face_box = False
+
+face_cascade = cv2.CascadeClassifier('xml/haarcascade_frontalface_default.xml')
+
+
+def cropper(files):
+    for current_file in files:
+        img = cv2.imread('inputs/' + current_file)
+        gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+
+        faces = face_cascade.detectMultiScale(gray, 1.3, 5)
+
+        for (x,y,w,h) in faces:
+            if draw_face_box:
+                cv2.rectangle(img, (x, y), (x+w, y+h), (255, 0, 0), 2)
+
+        (x, y, w, h) = faces[0]
+        max_dim = max(w, h)
+        extra_dimensions = int(max_dim * extra_dimensions_percent)
+
+        headshot = img[y-extra_dimensions:y+max_dim+extra_dimensions, x-extra_dimensions:x+max_dim+extra_dimensions]
+        height, width = headshot.shape[:2]
+
+        cv2.imwrite("outputs/" + current_file, headshot)
+        if show_window:
+            cv2.imshow('img', cv2.resize(headshot, (width // 4, height //4)))
+            cv2.waitKey(0)
+            cv2.destroyAllWindows()
+
+        print "Cropped %s" % current_file
+
+if __name__ == '__main__':
+    print "Started Cropper"
+    cropper(os.listdir("inputs"))
+    print "Cropping Complete"