Merge branch 'main' of https://github.com/cs-joy/Android

Author: cs-joy

FaceDetection/docs/documentation.md

@@ -133,3 +133,34 @@ Open `activity.xml` file, located at `src > main > res > layout > activity.xml`.
 
 </RelativeLayout>
 ```
+### Write Python Script
+go to `src/main/python` then create a new file called `face_detection.py` (or whatever you would like to give as an file name)
+after that open the new file (`face_detection.py`)
+
+copy the following code and paste into your python file
+```py
+import numpy as np
+import cv2
+from PIL import Image
+import base64
+import io
+import face_recognition
+
+def main(data):
+    decoded_data = base64.b64decode(data)
+    np_data = np.fromstring(decoded_data, np.uint8)
+    img = cv2.imdecode(np_data, cv2.IMREAD_UNCHANGED)
+    img_rgb = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
+    img_gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+
+    face_locations = face_recognition.face_locations(img_gray)
+    for (top, right, bottom, left) in face_locations:
+        cv2.rectangle(img_rgb, (left, top), (right, bottom), (0, 0, 255), 8)
+
+    pil_img  = Image.fromarray(img_rgb)
+    buff = io.BytesIO();
+    pil_img.save(buff, format="PNG")
+    img_str = base64.b64encode(buff.getvalue())
+
+    return "" + str(img_str, 'utf-8')
+```