无法检测opencv inrange中的颜色？

Question

我将检测图像中的绿色，完整代码如下所示

import numpy as np
import argparse
import cv2

ap = argparse.ArgumentParser()
ap.add_argument("-i", "--image", help = "path to the image")
args = vars(ap.parse_args())

# load the image
image = cv2.imread(args["image"])
image = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)


# define the list of boundaries
boundaries = [
    (  [ 146, 0, 0 ],[146, 100, 100 ])  # hsv 
]

for (lower, upper) in boundaries:
    lower = np.array(lower, dtype = "uint8")
    upper = np.array(upper, dtype = "uint8")

    mask = cv2.inRange(image, lower, upper)
    output = cv2.bitwise_and(image, image, mask = mask)

    cv2.imshow("images", np.hstack([image, output]))
    cv2.waitKey(0)

这是图片

所以hsv [146,40,40] =深绿色

hsv [146, 80, 80]  = light green

http://www.rapidtables.com/web/color/RGB_Color.htm可以验证颜色

但为什么程序不输出绿色掩码？