Extrapolating an image to give different resolution
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How do you extrapolate an image to give different resolution?
I am currently working on a MRI image and I need to create different mesh size from the image but I dont know how to extrapolate the image to create a final image with .333 mm/pixel or 0.476mm.pixel.
Any suggestion(s) would be helpful.
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Jan
il 12 Dic 2011
Instead of INTERP2 I'd prefer imresize(Img, [nROWS, nCOLS], 'lanczos3').
But to be exact: Every resizing add artifacts to the image. Of course it is necessary for some cases, e.g. an automatic comparison. But if anybody uses the method for cinical decision making keep in mind, that the results must be compared visually again using the original resolution. Do never, never, never plan a surgical operation, because the patient has a Moiree pattern!
I'm not joking. A lot of healthy legs and arms have been amputated due to missinterpreted images.
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Sean de Wolski
il 12 Dic 2011
doc interp2 %slicewise
doc interp3 %volumewise
Places to start.
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Sean de Wolski
il 12 Dic 2011
Well what did you try? Please post the full code and any error messages you encountered. Also, did you try IMRESIZE per Jan's suggestion?
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