how to write matlab porgramme to remove one of the RGB channels (make 0) in each of the 10 frames in a sequence?

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suresh gunarathna 2018-10-14

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评论： Walter Roberson 2018-10-15

采纳的回答： Walter Roberson

how to write matlab programme to remove one of the RGB channels in each of the 10 frames in a sequence

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Walter Roberson 2018-10-14

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在 MATLAB Online 中打开

frame_to_remove = randi(3);
initialize
for framenum = 1 : 10
  advance to frame given by framenum, storing in variable thisframe
  thisframe(:,:,frame_to_remove) = 0;
  image(thisframe);
  drawnow();
end

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suresh gunarathna 2018-10-15

can we write function for this

Walter Roberson 2018-10-15

Sure, go ahead.

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suresh gunarathna 2018-10-14

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out put is black image nothing else

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suresh gunarathna 2018-10-15

actually i want create m-file for my mp4 vedio . i frogot something tell you that question have hint it is first 10 frame red channel 0 ,second 10 frames green channel 0 and so on.

Walter Roberson 2018-10-15

You will need to say more clearly what the question is then. Is the question to figure out which of the three channels is non-zero ?

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suresh gunarathna 2018-10-15

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https://ww2.mathworks.cn/matlabcentral/answers/423928-how-to-write-matlab-porgramme-to-remove-one-of-the-rgb-channels-make-0-in-each-of-the-10-frames-in#answer_341409

question is this , a vedio file (sample.mp4) is given to you, write a matlab program (M-file) to remove one of the RGB channels (make 0) in each of the 10 frames in a sequence . (Hint - first 10 frames red channel 0 , second 10 frames green channel 0 and so on.)

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Walter Roberson 2018-10-15

Required output is not stated. Is the required output a new movie that is 3 times as long as the original movie, with the first 10 frames being the original with red removed, the second 10 being the original frames with green removed, the third 10 being the original frames with blue removed? Or is the desired output a 3 x 10 series of subplots displaying the images? Or a 3 x 10 montage?

suresh gunarathna 2018-10-15