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Fix "IndexError: invalid index to scalar variable" #39

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Fix "IndexError: invalid index to scalar variable" #39

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2c20b64
Fix "IndexError: invalid index to scalar variable"
nepiskopos Nov 6, 2021
f432861
Fix bounding box coordinates residing outside image
nepiskopos Nov 8, 2021
a61c0f2
Use a distinct color for every distinct face detected in a frame
Nov 8, 2021
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12 changes: 7 additions & 5 deletions utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -45,13 +45,14 @@ def get_outputs_names(net):

# Get the names of the output layers, i.e. the layers with unconnected
# outputs
return [layers_names[i[0] - 1] for i in net.getUnconnectedOutLayers()]
return [layers_names[i - 1] for i in net.getUnconnectedOutLayers()]


# Draw the predicted bounding box
def draw_predict(frame, conf, left, top, right, bottom):
# Draw a bounding box.
cv2.rectangle(frame, (left, top), (right, bottom), COLOR_YELLOW, 2)
colors = tuple(np.random.randint(1, 255, 3).tolist())
cv2.rectangle(frame, (left, top), (right, bottom), colors, 2)

text = '{:.2f}'.format(conf)

Expand Down Expand Up @@ -83,8 +84,10 @@ def post_process(frame, outs, conf_threshold, nms_threshold):
center_y = int(detection[1] * frame_height)
width = int(detection[2] * frame_width)
height = int(detection[3] * frame_height)
left = int(center_x - width / 2)
top = int(center_y - height / 2)
left = max(int(center_x - width / 2), 0)
top = max(int(center_y - height / 2), 0)
width = min(width, frame_width - left)
height = min(height, frame_height - top)
confidences.append(float(confidence))
boxes.append([left, top, width, height])

Expand All @@ -94,7 +97,6 @@ def post_process(frame, outs, conf_threshold, nms_threshold):
nms_threshold)

for i in indices:
i = i[0]
box = boxes[i]
left = box[0]
top = box[1]
Expand Down