MRIaggr-calcHemi_cpp: Mid-saggital plan search
In bozenne/MRIaggr: Management, Display, and Processing of Medical Imaging Data

C++ function called by calcHemisphere to compute the objective function that evaluates the consistency of the mid-sagittal plan. For internal use.

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calcHemi_cpp(coordsI, coordsJ, ls_indexK, n_num, value, n,
         i_pos, j_pos, angle_pos,
         penaltyNA, sd_data, p, symetrie)

`coordsI`	the coordinates of each voxel along the first coordinate. integer vector.
`coordsJ`	the coordinates of each voxel along the second coordinate. integer vector.
`ls_indexK`	the index of the voxels on each slice. list.
`n_num`	the number of slices. integer.
`value`	the contrast parameter value for each voxel. numeric vector.
`n`	the number of voxels. integer.
`i_pos`	the first coordinate of the center of the mid-sagittal plane. numeric.
`j_pos`	the second coordinate of the center of the mid-sagittal plane. numeric.
`angle_pos`	the angle between the axis of the second coordinate and the mid-sagittal plane. numeric.
`penaltyNA`	a penalty factor for the percent of voxel without controlateral correspondant. numeric.
`sd_data`	the standard deviation of the parameter. numeric.
`p`	the penalization factor. positive numeric.
`symetrie`	the type of objective function. `TRUE` correspond to `"symmetry"` and `FALSE` to `"asymmetry"`.