image acquisition and imaqmontage

Hi,

I've captured a number of frames using the image acquisition toolbox and exported them to the workplace, and want to save all of them as individual bmps. I can load all of them with imaqmontage, then save them individually with for example;

>> imaqmontage(hemi_0);

>> img = hemi_0(:,:,:,9);

>> imwrite(img,'imagename.bmp');

but that is a hassle since I will have several images. Help save them all automatically?

Raf

Answer 1

[Image Analyst]

Put in a loop and call getsnapshot() instead of imaqmontage().

snappedImage = getsnapshot(videoObject);

After each call to getsnapshot, call imwrite() with a different name.

[Rafael Madrid]

But it's not a video input object, it won't let me use getsnapshot with a uint8 series of frames.

[Rafael Madrid]

Say if I only use

imwrite(4-Duint8array(:,:,:,1), 'im01.bmp', 'bmp');

How can I repeat this with the names increasing in number without having to type them all in?

Raf

[Image Analyst]

If you have a 4D array of 3D color video frames, use a loop

for f = 1 : size(4-Duint8array, 4)
  thisFrame = 4-Duint8array(:,:,:,f);
  baseFileName = sprintf('frame #%d.bmp', f);
  fullFileName = fullfile(folder, baseFileName);
  imwrite(thisFrame, fullFileName);
end