Let's Learn OpenCV-Python: Read, Display & Save an Image

Basic tutorial to handle images: reading, displaying and saving them to file.


Comment below for any suggestions and queries.

[thegoddessgeek]

This really saved me, I am very thankful for this video . I've been trying a lot of tutorials for opencv for a lot of time this realy saved me hahaha thank you for this.

[advaitpatole]

it is showing an error (error: error: (-215) size.width>0 && size.height>0 in function cv::imshow)

[Sachihiiro]

i'm trying to implement the opencv show image in a GUI, how can i do this?

[ashishkumarsrivastav]

Why we have used k=order of the key pressed by the user

[meenakshiberisuresh]

I'm getting this error.
Traceback (most recent call last):
File "C:/Users/Reshma/Desktop/readwriteimg.py", line 4, in <module>
img=cv2.inread('flower.jpg', 0)#read in gray scale
AttributeError: 'module' object has no attribute 'inread'
plz help

[Joy_jester]

Can anyone please tell if i want to show to two images in two separate windows and destroy a particular window using cv2.destroyWindow and cv2.waitKey, how can it be done?

[RobiulIslam-xvbz]

cv2.error: error: (-2) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function cvShowImage



how to solve those?

please help