Multiple image subtractions that is comming from live camera

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piku mandal
piku mandal 2018-9-18
评论： piku mandal 2018-9-20
I am capturing multiple images with the help of live camera and save into a file.Now i want to substract multiple images that is comming from live camera and store into a file.How is it possible in matlab and code.Thank You in advance.

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回答（1 个）

KSSV
KSSV 2018-9-18
Let I1 and I2 be the image data obtained by using imread. Assuming they are of same dimensions:
I = I1-I2 ;
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Walter Roberson
Walter Roberson 2018-9-18
obj = videoinput('macvideo', 1); %use winvideo for Windows
obj.ReturnedColorSpace = 'rgb'; %you might need this
%then
for i=1:2 % (for 2 frames)
frame=getsnapshot(obj); %(taking snapshot from live camera and this is 1st frame)
if i~=1
sub_tracted_frame=imsubtract(frame, frame_pre);
imshow(sub_tracted_frame);
drawnow();
end
frame_pre = frame;
end

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