How to obtain the bounding box?

color_less · February 11, 2022, 7:56pm

How do I make a Region of Interest image with a bounding box like the one in the third image? both images are in Nifti format

berak · February 12, 2022, 9:56am

forgive me for being “mr. obvious” here, but shouldnt you be reading about
“Graph Cut Segmentation and morphological operations” now ?

github.com

opencv/opencv/blob/4.x/samples/python/grabcut.py

#!/usr/bin/env python
'''
===============================================================================
Interactive Image Segmentation using GrabCut algorithm.

This sample shows interactive image segmentation using grabcut algorithm.

USAGE:
    python grabcut.py <filename>

README FIRST:
    Two windows will show up, one for input and one for output.

    At first, in input window, draw a rectangle around the object using the
right mouse button. Then press 'n' to segment the object (once or a few times)
For any finer touch-ups, you can press any of the keys below and draw lines on
the areas you want. Then again press 'n' to update the output.

Key '0' - To select areas of sure background
Key '1' - To select areas of sure foreground

This file has been truncated. show original

https://docs.opencv.org/4.x/d9/d61/tutorial_py_morphological_ops.html

also, your illustration sems to be from some paper – you have a link for us ?

Topic		Replies	Views
Opencv bounding box issue Python	0	347	August 15, 2022
Extracting region with a person - CV approach Python edge-detection , object-detection , programming	4	1115	November 14, 2022
(JS) grabCut to findContours understanding masking opencvjs , imgproc	2	914	March 25, 2021
Make an algorithm more robust for identifying contours on images Python	9	1579	February 2, 2022
Extraction of image regions from black and white images Python	1	494	November 20, 2021

How to obtain the bounding box?

Related topics