>hello,
>
>i have a just imported a number of image sequences from efilm as dicom
>images to image j, inorder to make some measurements.
>
>the quality of the images when they increased in size is not good. They are
>quite pixilated, and make measurements difficult.
>
>I was wondering if there is a way to improve the clarity of these images.
>
>thanks
>
The MRI console may hide the fact that the images are pixelated by applying
interpolation. Actually most MRI images are very pixelated, with an image
size of up to 256x256pixels and a pixel size of more than 1x1mm. To take any
measurements, you are better off with the actual pixelated data as you see
in ImageJ.
The best way to improve the clarity is to increase the image dimensions when
the image is acquired on the scanner (subject to constraints of time and
SNR). There may also be an option to zero pad the data to 512x512 before
reconstruction, which doesn't cost time and is better than interpolating
after reconstruction.
If you want to use interpolation in ImageJ, you can use Image->Scale or the
TransformJ plugin
regards,
Jon
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