need source code for display frames of the results from video pieces in one axes only.. how can be looping ?

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Megah Putri 2011-8-3

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采纳的回答： Walter Roberson

need source code for display frames of the results from video pieces in one axes only.. how can be looping??

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Answer 1

Walter Roberson 2011-8-3

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If you use image() or imagesc() to display the images, then you can pass them the X and Y coordinates of the center of the lower left and upper right pixels. To display another image in the same axes, you would specify a different (X,Y) coordinate pair for the second image.

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Megah Putri 2011-8-3

thank you walter roberson, maybe you can help me ....

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Answer 2

Image Analyst 2011-8-3

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在 MATLAB Online 中打开

Here's a snippet of source code if you need it:

      mov = aviread(movieFullFileName);
      % Determine how many frames there are.
      numberOfFrames = size(mov, 2);
      for frame = 1 : numberOfFrames
    % Extract the frame from the movie structure.
    thisFrame = mov(frame).cdata;
      
          % Display it
          axes(handleToYourAxisControl);
          image(thisFrame);
          caption = sprintf('Frame %4d of %d.', frame, numberOfFrames);
          title(caption, 'FontSize', 15);
          drawnow; % Force it to refresh the window.    
      end

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Megah Putri 2011-8-3

image analyst maybe you can help me : this is my code, can you fix it ?....:

obj=VideoReader(video);

global frame1;global frame2;global frame3;global frame4;global frame5;

global frame6;global frame7;global frame8;global frame9;global frame10;

global frame11;global frame12;global frame13;global frame14;global frame15;

global frame16;global frame17;global frame18;global frame19;global frame20;

global frame21;global frame22;global frame23;global frame24;global frame25;

global frame26;global frame27;global frame28;global frame29;global frame30;

global frame31;global frame32;

numFrames=obj.NumberOfFrames;

vidHeight = obj.Height;

vidWidth = obj.Width;

disp(numFrames);

a=length(numFrames);

disp(a);

if(~isempty(get(handles.nmvideo,'String')))

try

for frame = 1:NumberOfFrames;

frame=read(obj,1);

axes(handles.axes1);

imshow(1);

end

catch

msgbox('Codec AVI tidak didukung atau Corupted file AVI','Error','error');

return;

end

else

msgbox('Anda harus memilih video terlebih dahulu','Error','error');

end

Megah Putri 2011-8-3

hhhmmmm..... walter roberson, after running , msgbox under catch display "Codec AVI tidak didukung atau Corupted file AVI','Error','error'" ..... whyy?

Walter Roberson 2011-8-3

Is the AVI coded at a variable bit rate? If so then you need to read it through once before you know the correct NumberOfFrames .

I suggest that you change the 'error' of your final msgbox() argument:

s = lasterror();

msgbox('Codec AVI tidak didukung atau Corupted file AVI','Error',s.message);

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need source code for display frames of the results from video pieces in one axes only.. how can be looping ?

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