Changing title of image to display many images simultaneously using open cv and python

Question

Hi I am using open cv 2 library with python ver 2.7.6

I have written the code which basically takes a image as input

but the output shows only 1 window ... not n windows.

Can any one please tell how i can display all the split images in multiple windows simultaneously.

The code is as follows

import numpy as np
import cv2


def dr(img,direction,n):
     roi=[0] * 69 
     r,cv,c = img.shape
     print h,w,c

    return(roi)

 if __name__ == "__main__":

        img = cv2.imread('image.jpg')
        img_roi=dr(img,0,65)
        cv2.waitKey(025)
        cv2.destroyAllWindows()

just change the name of the window, something like "title1", "title2", etc... — Miki, Nov 24 '15 at 16:21
http://stackoverflow.com/questions/2847386/python-string-and-integer-concatenation — Miki, Nov 24 '15 at 16:23
Can u please give me the syntax.. its really difficult for me to understand the above post — RoY, Nov 24 '15 at 16:25
Don't know python very well, but should be something like: `cv2.imshow('title' + str(i), roi[i]) ` — Miki, Nov 24 '15 at 16:26
SOLVED Replaced cv2.imshow('title',roi[i]) by cv2.imshow('image %d' % (i,), roi[i]) Thank U Miki .. — RoY, Nov 24 '15 at 18:02

score 4 · Accepted Answer · edited Nov 24 '15 at 18:06

4

I needed to change the window name for each different window. So I replaced

cv2.imshow('title',roi[i])

with

cv2.imshow('image %d' % (i,), roi[i])

edited Nov 24 '15 at 18:06

Miki

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answered Nov 24 '15 at 18:04

RoY

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Changing title of image to display many images simultaneously using open cv and python

1 Answers1