Hi,
I am using MATLAB for image processing.I need to have a gray scale video saved in disk. Please can you help me to manipulate the following script in order to give a gray scale video.I changed the set(vid, 'ReturnedColorspace', 'rgb') to set(vid, 'ReturnedColorspace', 'grayscale'), but it shows error (Error using im2frame
Indexed movie frame must have a non-empty colormap).
imaqreset;%warning('off','all'); %.... diable warining msg ...;
vid = videoinput('winvideo',1, 'YUY2_640x480');set(vid, 'FramesPerTrigger', Inf);set(vid, 'ReturnedColorspace', 'rgb');% vid.FrameRate =30;
vid.FrameGrabInterval = 1; % distance between captured frames
start(vid)aviObject = VideoWriter('myVideo.avi'); % Create a new AVI file
open(aviObject);for iFrame = 1:50 % Capture 100 frames
% ...
% You would capture a single image I from your webcam here
% ...I=getsnapshot(vid);%imshow(I);
F = im2frame(I); % Convert I to a movie frame
writeVideo(aviObject,F); % Add the frame to the AVI file
endclose(aviObject); % Close the AVI file
stop(vid);
thanks
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