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ba5f085 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | import math
import cv2
import numpy as np
def draw_kps_image(height, width, kps, color_list=[(255, 0, 0), (0, 255, 0), (0, 0, 255)], kps_type='v'):
if kps_type == 'v':
canvas = draw_v_kps_image(height, width, kps, color_list)
else:
raise NotImplementedError(f'kps_type {kps_type} not implemented')
return canvas
def draw_v_kps_image(height, width, kps, color_list):
stick_width = 4
limb_seq = np.array([[0, 2], [1, 2]])
kps = np.array(kps)
canvas = np.zeros((height, width, 3), dtype=np.uint8)
for i in range(len(limb_seq)):
index = limb_seq[i]
color = color_list[index[0]]
x = kps[index][:, 0]
y = kps[index][:, 1]
length = ((x[0] - x[1]) ** 2 + (y[0] - y[1]) ** 2) ** 0.5
angle = int(math.degrees(math.atan2(y[0] - y[1], x[0] - x[1])))
polygon = cv2.ellipse2Poly((int(np.mean(x)), int(np.mean(y))), (int(length / 2), stick_width), angle, 0, 360, 1)
cv2.fillConvexPoly(canvas, polygon, [int(float(c) * 0.6) for c in color])
for idx_kp, kp in enumerate(kps):
color = color_list[idx_kp]
x, y = kp
cv2.circle(canvas, (int(x), int(y)), 4, color, -1)
return canvas
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