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Update yolov3.py (#2680)

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The current yolov3 example is broken with the current implementation of of fetch in the helpers. I was tempted to fix the helpers instead but that could have just as well broken other examples.
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nickovaras
2023-12-08 15:59:38 -05:00
committed by GitHub
parent 73b067f5ce
commit 182d067407
1 changed files with 4 additions and 4 deletions
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examples/yolov3.py
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@@ -38,7 +38,7 @@ def show_labels(prediction, confidence=0.5, num_classes=80):
def add_boxes(img, prediction):
if isinstance(prediction, int): # no predictions
return img
coco_labels = fetch('https://raw.githubusercontent.com/pjreddie/darknet/master/data/coco.names')
coco_labels = fetch('https://raw.githubusercontent.com/pjreddie/darknet/master/data/coco.names').read_bytes()
coco_labels = coco_labels.decode('utf-8').split('\n')
height, width = img.shape[0:2]
scale_factor = 608 / width
@@ -281,7 +281,7 @@ class Darknet:
print("None biases for layer", i)
def load_weights(self, url):
weights = np.frombuffer(fetch(url), dtype=np.float32)[5:]
weights = np.frombuffer(fetch(url).read_bytes(), dtype=np.float32)[5:]
ptr = 0
for i in range(len(self.module_list)):
module_type = self.blocks[i + 1]["type"]
@@ -369,7 +369,7 @@ class Darknet:
return detections
if __name__ == "__main__":
model = Darknet(fetch('https://raw.githubusercontent.com/pjreddie/darknet/master/cfg/yolov3.cfg'))
model = Darknet(fetch('https://raw.githubusercontent.com/pjreddie/darknet/master/cfg/yolov3.cfg').read_bytes())
print("Loading weights file (237MB). This might take a while…")
model.load_weights('https://pjreddie.com/media/files/yolov3.weights')
if len(sys.argv) > 1:
@@ -392,7 +392,7 @@ if __name__ == "__main__":
cap.release()
cv2.destroyAllWindows()
elif url.startswith('http'):
img_stream = io.BytesIO(fetch(url))
img_stream = io.BytesIO(fetch(url).read_bytes())
img = cv2.imdecode(np.frombuffer(img_stream.read(), np.uint8), 1)
else:
img = cv2.imread(url)