images from opencv displayed in blue
# matplotlib interprets images in RGB format, but OpenCV uses BGR format
# so to convert the image so that it's properly loaded, convert it before loading
img = cv2.imread('filename.ext') # this is read in BGR format
rgb_img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) # this converts it into RGB
plt.imshow(rgb_img)
plt.show()cv2 yellow color range
lower = np.array([22, 93, 0])
upper = np.array([45, 255, 255])Copyright © 2021 Codeinu
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