How do I convert the matlab frames I've generated in the program below to tiff format

I have developed a program that shows the movement of a circle along the plotted points frame by frame, I found a function that could help me convert the frames to tiff format from http://www.mathworks.com/matlabcentral/fileexchange/23629-exportfig but every time I call the function the program stops generating the frames and I get this error message. Please I really need your help. Thank you

??? Undefined function or method 'print2array' for input arguments of type 'double'.

Error in ==> export_fig at 331 [A, tcol] = print2array(fig, magnify, renderer);

Error in ==> calibrationtweezers_1 at 59 export_fig stack.tif

y_max=50.0;
y_min=-50.0;
%F= (rand(20,10).*10);
N=300;
RandForce =  1030*rand(N,1) .* sign(randn(N,1));% random positions
k= 20.5;
y=RandForce./k;
%r=x_min+(x_max-x_min).*rand(n,1);
y(y_min > y | y > y_max) = 0;

figure (1)
plot(y); % Graphs the Plot
xlabel('frames'); ylabel('Random Positions');
hold on

figure (2)
scatter(1:length(y), y, 90, [0 0 0], 'filled' );
xlabel('frames'); 
ylabel('Random Positions');

figure('Position', [300  300 300 300])
axlim=10000;
aylim=10000;
for i = 1:length(y)
   %fprintf('Frame: %03d\n', i) 
   b=y
   a=2;
   plot(a,b,'.','MarkerSize',60)
   axis([-axlim axlim -aylim aylim]);
  % axis off
end

%aviobj = avifile('microsphere.avi','compression','None');
randommov = figure('Position', [300  300 300 300])
h=randommov;
set(h,'Position',[300  300 300 300])
set(h,'NextPlot','replacechildren')%Make sure each frame 
                                   %of the movie is the same size
axlim=10000;
aylim=10000;
N=30;
count=1;
M=moviein(N);
for j = 1:1:N
   %fprintf('Frame: %03d\n', i) 
   b=y;
   figure('Position', [300  300 300 300])
   plot(a,b(j),'.','MarkerSize',100)
   axis([-axlim axlim -aylim aylim]);
   title('Microsphere');
   S1=sprintf('Frame: %03d\n', j);
   text(6,.5,S1)
   pause(0.001);
  % axis off
   M(:,j) = getframe(randommov);
   M(count)=getframe(h);
   count=count+1;
   if j==1
     export_fig stack.tif
else
     export_fig stack.tif -append
   end 

end

[Image Analyst]

Edit your post. Put a blank line before your code. Highlight your code. Click the {}Code icon, then save it. This will format your code nicely. Are you going to make us guess at your error message? Why not make it easy for us to help you and tell us what the error message is?

Answer 1

[Image Analyst]

I copied and pasted your code. The error message I get, right before you try to call imwrite() is:

Undefined function or variable 'c'.
Error in test (line 80)
if c == 1

So, what is c?

[EngStudent]

I just edited the program above and c=j

[Jan]

And do you still get an error message? Image Analyst has asked this already.

[EngStudent]

yes I do

[Image Analyst]

Wow, you don't make it easy for us to help you, do you? But I'll make one last attempt. My comment above remains: "Are you going to make us guess at your error message? Why not make it easy for us to help you and tell us what the error message is?"

[Jan]

Please, EngStudent, do not answer Image Analyst's question "why not make it easy for us". This is a suggestive meta-message and he actually only wants to know the error message. Or in other words:

Please, EngStudent, post the error message.

[EngStudent]

??? Error using ==> imwrite at 457 Can't open file "figure.tif" for writing. You may not have write permission.

Error in ==> calibration_tweezers at 66 imwrite(randommov,'figure.tif');

[EngStudent]

sorry it took so long my computer was down

[Image Analyst]

You need to have the file name in quotes:

export_fig 'stack.tif';

[EngStudent]

I keep getting this message after putting the file name in quotes

??? Undefined function or method 'print2array' for input arguments of type 'double'.

Error in ==> export_fig at 331 [A, tcol] = print2array(fig, magnify, renderer);

Error in ==> calibrationtweezers_1 at 60 export_fig 'stack.tif'; MathWorks

[EngStudent]

I was wondering if I needed to save all functions in from this website http://www.mathworks.com/matlabcentral/fileexchange/23629-exportfig In order to convert the frames to tiff or do just needed to save export_fig

I got this error after running the program a second time ??? Error using ==> imwrite at 457 Can't open file "stack.tif" for writing. You may not have write permission.

Error in ==> export_fig at 388 imwrite(A, [options.name '.tif'], 'Resolution', options.magnify*get(0, 'ScreenPixelsPerInch'), 'WriteMode', append_mode{options.append+1});

Error in ==> calibrationtweezers_1 at 60 export_fig 'stack.tif'

Answer 2

[Walter Roberson]

What directory are you in when you execute this code? If you are in a directory MATLAB is installed in, the directory is likely protected by the operating system.

[EngStudent]

I really don't know how to fix this problem

[Walter Roberson]

Which directory are you in when you execute the code?

Have you tried moving the code to a different directory completely, such as under Documents And Settings, and executing it there?

[EngStudent]

I am executing this program under my documents

[Walter Roberson]

Is there an existing tiffstack.tiff file in that directory? If so then delete it and try again.

[EngStudent]

I don't have any existing tiff files in my directory