[ROS opencv] 调试巡线所需最优的HSV范围

以下是调试巡线所需最优的HSV范围

# 将selhsv.py拷贝到图片所在文件夹，在终端调用以下命令

# python3 selhsv.py ./img_915.jpg

# 在弹出界面上，拉动滚动条，调试巡线所需最优的HSV范围

from __future__ import division

import cv2

import numpy as np

import sys

# from src.com.hf.opencv import u

def nothing(*arg):

    pass

filename = sys.argv[1]

print('filename: ', filename)

# Initial HSV GUI slider values to load on program start.

# icol = (0, 0, 0, 255, 255, 255)  # Green

icol = (0, 0, 0, 255, 255, 75)

# icol = (18, 0, 196, 36, 255, 255)  # Yellow

# icol = (89, 0, 0, 125, 255, 255)  # Blue

# icol = (0, 100, 80, 10, 255, 255)   # Red

cv2.namedWindow('colorTest')

# Lower range colour sliders.

cv2.createTrackbar('lowHue', 'colorTest', icol[0], 255, nothing)

cv2.