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fix n_markers issue #8

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fix n_markers issue #8

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21 changes: 10 additions & 11 deletions vcm/qr_drawing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,9 @@ def draw_qr(
img_qr = qr.make_image(fill_color="black", back_color="white")
img_qr = np.array(img_qr.convert('RGB'))[:, :, ::-1].copy()

if n_markers > 4:
n_markers = 4 # 4 markers at most

if n_markers==1:
markers = [[1080-dist-img_qr.shape[0],1920-dist-img_qr.shape[1]]]
elif n_markers==2:
Expand Down Expand Up @@ -124,16 +127,12 @@ def draw_qr(
run_process(ff_args)
shutil.rmtree(tmp_dir)

marker_pos = {
'marker_1_x1': markers[0][1],
'marker_1_x2': markers[0][1]+img_qr.shape[0],
'marker_1_y1': markers[0][0],
'marker_1_y2': markers[0][0]+img_qr.shape[1],
'marker_2_x1': markers[1][1],
'marker_2_x2': markers[1][1]+img_qr.shape[0],
'marker_2_y1': markers[1][0],
'marker_2_y2': markers[1][0]+img_qr.shape[1],
}
marker_pos = {}
for i in range(0, n_markers):
marker_pos['marker_'+str(i)+'_x1'] = markers[i][1],
marker_pos['marker_'+str(i)+'_x2'] = markers[i][1]+img_qr.shape[0],
marker_pos['marker_'+str(i)+'_y1'] = markers[i][0],
marker_pos['marker_'+str(i)+'_y2'] = markers[i][0]+img_qr.shape[1],

return marker_pos, output_video

Expand All @@ -158,4 +157,4 @@ def check_qr_codes(dst_video):
detected_frame = int(barcode.data.decode("utf-8"))
if detected_frame!=frame:
raise RuntimeError(f"Wrong frame number for QR code found. Actual frame: {frame}, detected frame {detected_frame}")
print(f'--> All QR codes succesfully detected')
print(f'--> All QR codes succesfully detected')