Merge pull request #1191 from serengil/feat-task-1604-detect-after-align-bug

Feat task 1604 detect after align bug

Author: serengil

deepface/detectors/CenterFace.py

@@ -82,10 +82,10 @@ def detect_faces(self, img: np.ndarray) -> List["FacialAreaRegion"]:
             # mouth_left = (int(landmark[8]), int(landmark [9]))
 
             facial_area = FacialAreaRegion(
-                x=x,
-                y=y,
-                w=w,
-                h=h,
+                x=int(x),
+                y=int(y),
+                w=int(w),
+                h=int(h),
                 left_eye=left_eye,
                 right_eye=right_eye,
                 confidence=min(max(0, float(confidence)), 1.0),

deepface/detectors/DetectorWrapper.py

@@ -175,22 +175,30 @@ def rotate_facial_area(
     # Angle in radians
     angle = angle * np.pi / 180
 
+    height, weight = size
+
     # Translate the facial area to the center of the image
-    x = (facial_area[0] + facial_area[2]) / 2 - size[1] / 2
-    y = (facial_area[1] + facial_area[3]) / 2 - size[0] / 2
+    x = (facial_area[0] + facial_area[2]) / 2 - weight / 2
+    y = (facial_area[1] + facial_area[3]) / 2 - height / 2
 
     # Rotate the facial area
     x_new = x * np.cos(angle) + y * direction * np.sin(angle)
     y_new = -x * direction * np.sin(angle) + y * np.cos(angle)
 
     # Translate the facial area back to the original position
-    x_new = x_new + size[1] / 2
-    y_new = y_new + size[0] / 2
+    x_new = x_new + weight / 2
+    y_new = y_new + height / 2
 
-    # Calculate the new facial area
+    # Calculate projected coordinates after alignment
     x1 = x_new - (facial_area[2] - facial_area[0]) / 2
     y1 = y_new - (facial_area[3] - facial_area[1]) / 2
     x2 = x_new + (facial_area[2] - facial_area[0]) / 2
     y2 = y_new + (facial_area[3] - facial_area[1]) / 2
 
-    return (int(x1), int(y1), int(x2), int(y2))
+    # validate projected coordinates are in image's boundaries
+    x1 = max(int(x1), 0)
+    y1 = max(int(y1), 0)
+    x2 = min(int(x2), weight)
+    y2 = min(int(y2), height)
+
+    return (x1, y1, x2, y2)