fixed input image bug

app.py

@@ -5,24 +5,28 @@ import face_recognition
 st.title("Face Detection")
 
 # Load the jpg file into a numpy array
-file_name = st.file_uploader("Upload a candidate image")
-image = face_recognition.load_image_file(file_name)
+input_image = st.file_uploader("Upload a candidate image",type=['jpg','png','jpeg'],accept_multiple_files=False)
+if input_image is not None:
+    image = face_recognition.load_image_file(input_image)
+    st.image(image)
 
-# Find all the faces in the image using the default HOG-based model.
-# This method is fairly accurate, but not as accurate as the CNN model and not GPU accelerated.
-# See also: find_faces_in_picture_cnn.py
-face_locations = face_recognition.face_locations(image)
+    # Find all the faces in the image using the default HOG-based model.
+    # This method is fairly accurate, but not as accurate as the CNN model and not GPU accelerated.
+    # See also: find_faces_in_picture_cnn.py
+    face_locations = face_recognition.face_locations(image)
 
-st.write("I found {} face(s) in this photograph.".format(len(face_locations)))
+    st.write("I found {} face(s) in this photograph.".format(len(face_locations)))
 
-for face_location in face_locations:
+    for face_location in face_locations:
 
+        # Print the location of each face in this image
+        top, right, bottom, left = face_location
+        st.write("A face is located at pixel location Top: {}, Left: {}, Bottom: {}, Right: {}".format(top, left, bottom, right))
 
-    # Print the location of each face in this image
-    top, right, bottom, left = face_location
-    st.write("A face is located at pixel location Top: {}, Left: {}, Bottom: {}, Right: {}".format(top, left, bottom, right))
+        # You can access the actual face itself like this:
+        face_image = image[top:bottom, left:right]
+        pil_image = Image.fromarray(face_image)
+        st.image(pil_image)
 
-    # You can access the actual face itself like this:
-    face_image = image[top:bottom, left:right]
-    pil_image = Image.fromarray(face_image)
-    st.write(pil_image)
+else:
+    st.write("Please upload an image to proceed.")