COCO2YOLO/test_with_labels.py

import cv2
import time
import argparse
import numpy as np
import matplotlib.pyplot as plt
parser = argparse.ArgumentParser(description='Test yolo data.')
parser.add_argument('-i', help='Image', dest='img', required=True)
parser.add_argument('-t', help='Yolo text file', dest='txt',required=True)
parser.add_argument('-l', help='labels txt file', dest='label',required=True)
args = parser.parse_args()
frame = cv2.imread(args.img)
cv2.namedWindow("f", cv2.WINDOW_NORMAL);

coordinates = []

with open(args.txt, "r") as lines:
	for line in lines:
		hT, wT, cT = frame.shape
		coordinates = line.rstrip('\n').split(' ')
		idx = coordinates[0]	
		x1, y1,w2,h2 = float(coordinates[1]), float(coordinates[2]), float(coordinates[3]), float(coordinates[4])
		print(x1,y1,w2,h2)
		cmap = plt.get_cmap('tab20b')
		colors = [cmap(i)[:3] for i in np.linspace(0, 1, 20)]
		color = colors[int(idx) % len(colors)]
		color = [i * 255 for i in color]
		w, h = int(w2 * wT), int(h2 * hT)
		x, y = int((x1 * wT) - w / 2), int((y1 * hT) - h / 2)
		with open(args.label, "r") as labels:
			classNames = labels.read().rstrip('\n').split('\n') 
# # 0 1 2 3 x1 - центр по x в процентах y1- центр по y в процентах w2- центр по w в процентах h2- центр по h в процентах
			cv2.rectangle(frame, (x,y), (x+w, y+h), color,3)
			print(len(classNames[1]))
			cv2.rectangle(frame, (x,y-30), (x+len(classNames[int(idx)]*15), y), color,-1)
			cv2.putText(frame,str(classNames[int(idx)]), (x+4, y-10), cv2.FONT_HERSHEY_SIMPLEX, 0.6, (255, 255, 255), 2)
cv2.imshow("f", frame)
cv2.waitKey(0)