[FieldTrip] MRI low contrast

[Arjen Stolk]

Hi Michal,

There's a (undocumented) keyboard shortcut, shift+equal sign (numpad +) to
adjust the contrast scaling (use numpad - for the opposite direction).

Perhaps ft_sourceplot should additionally require the same cfg.lim option
that for instance ft_determine_coordsys uses. Will propose in a PR.

Best,
Arjen




On Mon, Sep 11, 2017 at 2:16 PM, Michał Komorowski <michak at is.umk.pl> wrote:

> Dear Fieldtrippers,
>
> How to correct low contrast in MR image when using ft_mri_read and
> ft_sourceplot to read and display MR image? (see attachment
> mri00_lowctrst.png)
>
> For comparison, same .nii opened with mricron software (
> http://people.cas.sc.edu/rorden/mricron/install.html) displays with
> proper contrast (see attachment mri00_hictrst.png)
>
> Code:
>
> ss = 'sub1';
> f = ['../data/ind/', ss, '/mri/mri00.nii'];
> mri00 = ft_read_mri(f)
> ft_sourceplot([],mri00)
>
>
> Thank you in advance !
>
> Michał Komorowski, MSc
> Nicolaus Copernicus University in Toruń
> Faculty of Physics, Astronomy and Informatics
> Department of Informatics
>
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