Editing images using python and opencv

[caaaameron_]

Context and Task:
I am am very new to python so i hope not to infuriate you with my lack of understanding. My homework requires me to display an image in BGR, Greyscale and HSV. I am also required to print out the width, height and channel of all three. I have only written lines for BGR currently.

This is what I wrote:

import cv2

color = cv2.imread(r"C:\Users\cam28\python", 1)
cv2.imshow("Image",color)
cv2.moveWindow("Image",0,0)
print(color,shape)
height,width,channels = color.shape

b,r,r = cv2.split(color)

rgb_split = np.empty([height,width3,3],'uint8')

rgb_split[:, 0:width] = cv2.merge([b,b,b])
rgb_split[:, width:width2] = cv2.merge([g,g,g])
rgb_split[:, width2, width3] = cv2.merge([r,r,r])

cv2.imshow("Channels", rgb_split)
cv2.moveWindow("Channels",0,height)

hsv = cv2.cvtColor(color, cv2.COLOR_BGR2HSV)

cv2.waitKey
cv2.destroyAllWindows


This is what comes out in the terminal:

PS C:\Users\cam28> ${env:DEBUGPY_LAUNCHER_PORT}='49924'; & 'C:\Users\cam28\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' 'c:\Users\cam28.vscode\extensions\ms-python.python-2020.4.76186\pythonFiles\lib\python\debugpy\no_wheels\debugpy\launcher' 'c:\Users\cam28\python\Assignment 1\Task_1.py'
Traceback (most recent call last):
File "c:\Users\cam28\python\Assignment 1\Task_1.py", line 4, in <module>
cv2.imshow("Image",color)
cv2.error: OpenCV(4.2.0) C:\projects\opencv-python\opencv\modules\highgui\src\window.cpp:376: error: (-215:Assertion failed) size.width>0 && size.height>0
in function 'cv::imshow'

[pyzyx3qwerty]

Please use proper coding tags while posting your thread. Since this is your first time, it's ok, but pls use it in future threads

[caaaameron_]

Yes Sir. That is my bad.

[pyzyx3qwerty]

Yes Sir. That is my bad.

No problem, you can edit it now. Also, see BBCode for more help

[caaaameron_]

Yes Sir. That is my bad.

No problem, you can edit it now. Also, see BBCode for more help

Damn it. I missed the 10min window. Is it possible to reopen the edit part?

[pyzyx3qwerty]

Nope I'm afraid not. However, if you get 5 posts, you'll be able to edit posts for a longer time . See Permissions and Groups

[caaaameron_]

Nope I'm afraid not. However, if you get 5 posts, you'll be able to edit posts for a longer time . See Permissions and Groups

Oh okay, thanks for the pointers. It is really appreciated!