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Image Processing Toolkit

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  1. How to display an image that showing both positive and negative activation in different colors simultaneously?

    Currently, an image could be displayed with only one color scheme, so a remedy to do that is inverting the image first, and assigning two different color schemes for them.

  2. How to get a MNI coordinate of a voxel?

    The coordinate showed in the software is in voxel units. If a MNI standard template (voxel size: 2mm x 2mm x 2mm) is loaded, then the MNI coordinate could be computed as

    MNI_x = (45 - voxel_x) * 2 mm

    MNI_y = (voxel_y - 63) * 2 mm

    MNI_z = (voxel_z - 36) * 2 mm