How to save multiple images by using saveas command?

Hi, i am using stl file reader (https://www.mathworks.com/matlabcentral/fileexchange/22409-stl-file-reader?s_tid=srchtitle) to read stl model and made some changes to obtain multiple images with differen views, so i want save them all. i tried saveas command by wasnt able to save, so can somebody help me? There is a code

fv = stlread('cameraleft.stl');
%%Render
% The model is rendered with a PATCH graphics object. We also add some dynamic
% lighting, and adjust the material properties to change the specular
% highlighting.
for i=0:5:90
     k=1:20;
patch(fv,'FaceColor',       [0.8 0.8 1.0], ...
         'EdgeColor',       'none',        ...
         'FaceLighting',    'gouraud',     ...
         'AmbientStrength', 0.15);

% Add a camera light, and tone down the specular highlighting
camlight('headlight');
material('dull');

% Fix the axes scaling, and set a nice view angle
axis('image');

      figure

      v1=view([i -180]);
    axis off
  temp=['',num2str(k),'.jpg'];
  saveas(gca,temp);
  end

[Image Analyst]

You forgot to attach 'cameraleft.stl' in a .zip file, and forgot to show where you called saveas().

[Baisseyev Miram]

Thanks, edited

[Image Analyst]

What exactly does "wasnt able to save" mean? Was a jpg file saved or not? If it was saved, does it look OK or not? If it wasn't saved, was an error thrown?

[Baisseyev Miram]

wasnt able to save multiple images, it only saved last one and give name 1 2 3 4...20.jpg

[Image Analyst]

That's because you used k instead of i. You should have done

fileName = sprintf('%d.jpg', i); % Create filename.
saveas(gca, fileName);

See KSSV's code below.

Answer 1

[Image Analyst]

You used k instead of i. You should have done

fileName = sprintf('%d.PNG', i); % Create filename from i.
saveas(gca, fileName);

I don't even know what the point of k is. Why did you even create it?

Don't use JPG format - use PNG for higher quality. With the code you'll get 0.PNG, 5.PNG, 10.PNG, ..... 90.PNG.

[Baisseyev Miram]

thanks it worked but all the saved images a white, i mean there are no object just white background.

[Baisseyev Miram]

also i created k because wanted to be 1.png, 2. png ...

[Image Analyst]

If you want to save images, try using getframe() and then saving that with imwrite(). Set an image counter to zero before the loop:

imageCounter = 0;

Then, in the loop, get the image and save it with the right name:

rgbImage = getframe(gca);
imageCounter = imageCounter + 1;
fileName = sprintf('%d.PNG', imageCounter); % Create filename from imageCounter.
imwrite(rgbImage, fileName);

[Baisseyev Miram]

Again same problem, firstly rgbImage was struct data type so i made last row like this imwrite(rgbImage.cdata, fileName); and again in saved image was only background i mean without object, when i tried manually(from figure save command) save evething was ok.

Answer 2

[KSSV]

Check the below demo code:

N = 10 ;
for i = 1:N
    plot(rand(N,1)) ;
    saveas(gcf,[num2str(i),'.jpg'])
end

[Arika Amasarao]

Excellent Sir,

Sir,If i want to save this in new folder?

[Image Analyst]

You'd do

folder = 'c:\whatever'; % Change this to whatever you want.
for k = 1 : N
    baseFileName = sprintf('%d.png', k);
    fullFileName = fullfile(folder, baseFileName);
    saveas(gca, fullFileName); % Save current axes (not the whole figure).
end