piece_data['center'] = piece.center
except:
print 'could not find center for "%s"' % filepath
# Find corner candidates with template matching.
try:
piece.template_corners()
if args['--plot']:
for cc in piece.candidate_corners:
ax1.plot(cc[0], cc[1], '+r', markersize=8)
except:
print 'could not find corner candidates for "%s"' % filepath
# Find the "true corners."
try:
piece.find_true_corners()
if args['--plot']:
corner_xs = [c[0] for c in piece.corners]
corner_ys = [c[1] for c in piece.corners]
ax1.plot(corner_xs, corner_ys, 'og', markersize=8)
piece_data['corners'] = [c.tolist() for c in piece.corners]
except:
print 'could not find true corners for "%s"' % filepath
# Determine the four sides: paths along the outline that connect corners.
try:
piece.find_sides()
if args['--plot']:
colors = ('r', 'g', 'b', 'cyan')
for index, side in enumerate(piece.sides):
x = [s[0] for s in side]
