| 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 | |