37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
import numpy as np
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import cv2
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palette = (2 ** 11 - 1, 2 ** 15 - 1, 2 ** 20 - 1)
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def compute_color_for_labels(label):
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"""
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Simple function that adds fixed color depending on the class
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"""
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color = [int((p * (label ** 2 - label + 1)) % 255) for p in palette]
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return tuple(color)
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def draw_boxes(img, bbox, identities=None, offset=(0,0)):
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for i,box in enumerate(bbox):
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x1,y1,x2,y2 = [int(i) for i in box]
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x1 += offset[0]
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x2 += offset[0]
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y1 += offset[1]
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y2 += offset[1]
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# box text and bar
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id = int(identities[i]) if identities is not None else 0
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color = compute_color_for_labels(id)
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label = '{}{:d}'.format("", id)
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t_size = cv2.getTextSize(label, cv2.FONT_HERSHEY_PLAIN, 2 , 2)[0]
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cv2.rectangle(img,(x1, y1),(x2,y2),color,3)
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cv2.rectangle(img,(x1, y1),(x1+t_size[0]+3,y1+t_size[1]+4), color,-1)
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cv2.putText(img,label,(x1,y1+t_size[1]+4), cv2.FONT_HERSHEY_PLAIN, 2, [255,255,255], 2)
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return img
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if __name__ == '__main__':
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for i in range(82):
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print(compute_color_for_labels(i))
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