Real time Rgb2gray convert

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hey guys i want to know if it is possible to convert in real time a RGB form video to a gray Form.
I tried to use rgbgray function and min function but i wasn't able to get what i want
clc; % Clear the command window.
close all; % Close all figures (except those of imtool.)
clear; % Erase all existing variables. Or clearvars if you want.
%activate the integrated camera
web = webcam('HD Webcam')
img = snapshot(web)
% Read in a demo image.
%grayImage= min(originalRGBImage, [], 3); % Useful for finding image and color map regions of image.
grayImage = rgbgray(web); % Useful for finding image and color map regions of image.

Accepted Answer

Image Analyst
Image Analyst on 31 May 2021
Edited: Image Analyst on 31 May 2021
You need to pass in the color image, not the webcam object. And you need to call rgb2gray(), not rgbgray().
rgbimage = snapshot(web)
grayImage = rgb2gray(rgbImage);
Zakaria Boussaid
Zakaria Boussaid on 2 Jun 2021
thank you for this informative answer

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