Cannot show the original picture use opencv-python 3.4

Question

I'am a newer for opencv. I used the next command install the opencv 3.4

 py -3 -m pip install open_python-3.4.4.19-cp36-cp36m-win_ame64.whl

and use the code named Image_Thresholding.ipynb process the picture the file Image_Thresholding.ipynb like this:

 import cv2
 pic = cv2.imread('adult.jpg', 0)
 threshold_value = 200
 (T_value, binary_threshold) = cv2.threshold(pic, threshold_value, 255, cv2.THRESH_BINARY)
 cv2.imshow('binary', binary_threshold)
 cv2.waitKey(0)
 cv2.destroyAllWindows()

I used pycharm2018.3.1 and set the configurations to use Jupter Notebook to run up code show the processed the picture, It's a white and black picture but I want use the next code
to show the original picture it also show the processed white and black picture

 import cv2
 img = cv2.imread('adult.jpg', 0)
 cv2.imshow('adult', img)
 cv2.waitKey(0)
 cv2.destoryAllWindows()

How to show the original picture. Is my environment wrong or any else problem ?

Answer 1

You're experiencing such issue because of the 0 flag you use in the imread function call. That is used to read images in grayscale.

In order to load and display a color image just do:

import cv2
img = cv2.imread('adult.jpg')
cv2.imshow('adult', img)
cv2.waitKey(0)
cv2.destoryAllWindows()

Hope this helps