How to save a figure displayed in to a folder?

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Faranak
Faranak 2014-4-14
评论： Image Analyst 2014-4-15
I have 2 dicom image and I subtract them from each other.Now I want to save the subtracted one in to a folder, but I don't know which type should I choose for saving the image and what should I write for this. My image is a gray scale image and its size is 256*256 . and I have 160 images that I want to save. what should I do? Thanks.

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Image Analyst
Image Analyst 2014-4-14
Since the subtraction can have positive and negative numbers, using uint8 or uint16 is out of the question. I don't know about dicom since I don't use that format. Can it save negative numbers? What are you going to do with the images after you save them? Use them only in MATLAB? If so, then why not just save the image variables as .mat files with save()? If you need other apps, like Photoshop or imageJ, to be able to read them in then you'll have to find a standard image format that takes negative numbers, like maybe TIFF.
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Faranak
Faranak 2014-4-15
I use imsave but it saves the binary one and not the grayscale of the image. I mean it turn the grayscale in to a binary image and then save it. What should I do?

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