How to save image , in the image type it is being fetched.

In my work, I have provided a GUI interface to select a image to be watermarked and after watermarking process i have to save the image,

Now the issue is if I save it using imwrite then the image type will be fixed like either .BMP or .JPG

how to provide, the choice that user can select image format and image is saved in that same type.

I am not getting, how the code will be done

Plz help!!!

Answer 1

[Image Analyst]

Use menu(), then depending on which button was selected, use sprintf() to write the proper extension into the filename. Let me know if you can't figure it out and I can give a demo.

[ankita]

thank you sir ...... will try and report back to you

[Image Analyst]

If you're having trouble, here is the code:

folder = 'C:/Users/ankita/Documents';
baseFileName = 'myOutputImage';
button = menu('Use which format for the image file?', 'PNG', 'BMP', 'TIF', 'JPG');
if button == 1
  extension = 'PNG';
elseif button == 2
  extension = 'BMP';
elseif button == 3
  extension = 'TIF';
else
  extension = 'JPG';
end
% Append extension to the base file name.
baseFileName = sprintf('%s.%s', baseFileName, extension)
% Prepend the folder to get the full file name.
fullFileName = fullfile(folder, baseFileName)
imwrite(imageArray, fullFileName);