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feat: add webcam support to Palm Detection demo #301

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feat: add webcam support to Palm Detection demo #301

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f6c963d
feat: add webcam support to NanoDet demo
ojayballer Dec 8, 2025
96cf6f7
feat: add webcam support to Palm Detection demo
ojayballer Dec 9, 2025
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11 changes: 9 additions & 2 deletions models/object_detection_nanodet/demo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -133,7 +133,9 @@ def vis(preds, res_img, letterbox_scale, fps=None):

tm = cv.TickMeter()
tm.reset()
if args.input is not None:

#if Input is NOT a digit(i.e input is a file path like dog.jpg or cat.jpg)
if args.input is not None and not args.input.isdigit():
image = cv.imread(args.input)
input_blob = cv.cvtColor(image, cv.COLOR_BGR2RGB)

Expand All @@ -157,9 +159,14 @@ def vis(preds, res_img, letterbox_scale, fps=None):
cv.imshow(args.input, img)
cv.waitKey(0)

#If it is a digit(or None),go to webcam mode
else:
print("Press any key to stop video capture")
deviceId = 0

#If args.input is None,choose 0 as default else leave it as -
# the digit the string was before the conversion to an integer i.e "1" as 1

deviceId = int(args.input) if args.input else 0
cap = cv.VideoCapture(deviceId)

while cv.waitKey(1) < 0:
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7 changes: 4 additions & 3 deletions models/palm_detection_mediapipe/demo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -87,8 +87,8 @@ def visualize(image, results, print_results=False, fps=None):
backendId=backend_id,
targetId=target_id)

# If input is an image
if args.input is not None:
# if Input is NOT a digit(i.e input is a file path like thumb.jpg or index_finger.jpg)
if args.input is not None and not args.input.isdigit():
image = cv.imread(args.input)

# Inference
Expand All @@ -109,8 +109,9 @@ def visualize(image, results, print_results=False, fps=None):
cv.namedWindow(args.input, cv.WINDOW_AUTOSIZE)
cv.imshow(args.input, image)
cv.waitKey(0)
#If it is a digit(or None),go to webcam mode
else: # Omit input to call default camera
deviceId = 0
deviceId = int(args.input) if args.input else 0
cap = cv.VideoCapture(deviceId)

tm = cv.TickMeter()
Expand Down