How to calculate distance between center of white pixels in an image?

5 visualizzazioni (ultimi 30 giorni)
In this iamge, I want to measure the distance between the center of area of white pixels marked below.
As these are not definite shapes, how do I find the center of these and then measure the distance in pixels between their centers.cmm_wo_circles.jpg

Risposta accettata

KSSV il 22 Lug 2019
REad about imdistline; this will allow you to calculate the distance between the points interactively. For this you are supposed to have image toolbox.
[y,x] = find(I==1) ; % give the pixel value
The above line, gives you the coordinates/ points of the required pixel. YOu have the points in hand, you can do the process needed.
  2 Commenti
Ritwik Dhar
Ritwik Dhar il 22 Lug 2019
Modificato: Ritwik Dhar il 22 Lug 2019
imdistline was what I was looking for.
But could there be some way I could directly code the center pixel co-ordinates to the imdistline arguments so that I can use this with large number of images.

Accedi per commentare.

Più risposte (1)

Teja Muppirala
Teja Muppirala il 22 Lug 2019
You can find the center (centroid) of each white region using REGIONPROPS, and then just calculate the distance between the centers that regionprops returns.


Scopri di più su Image Data Acquisition in Help Center e File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by