How to crop the circular ROI (already done) from the image ? I want to eliminate the black background for calculating average RGB values, so that i can calculate average luminance from the image.

2 Ansichten (letzte 30 Tage)
veena mathew
veena mathew am 12 Feb. 2021
Kommentiert: Omer Akatekin am 22 Mär. 2021
clear all
clc
hdr=hdrread('testfile.hdr');
rgb=tonemap(hdr);
figure;
imshow(rgb)
roi = drawcircle('Center',[400 400],'Radius',398);
BW=createMask(roi);
  1 Kommentar
Omer Akatekin
Omer Akatekin am 22 Mär. 2021
Are you doing for tunnel lighting access zone calculation ? because it seems to what i am trying to design app for these nowadays

Melden Sie sich an, um zu kommentieren.

Melden Sie sich an, um diese Frage zu beantworten.

Antworten (1)

Abhishek Gupta
Abhishek Gupta am 15 Feb. 2021
Hi,
Referring to the following MATLAB Answer, which might help you in resolving the issue: -
Average pixel values of several ROIs

Kategorien

Mehr zu ROI-Based Processing finden Sie in Help Center und File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!

Translated by