WASM extended niimathx() calculates robust range

rordenlab / niimath

niimath - a clone of fslmaths. Try the live demo:

https://niivue.github.io/niivue-niimath/

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Closed neurolabusc closed 2 years ago

neurolabusc commented 2 years ago

niimath functions change voxel intensity. The new function WASM function niimathx() extends niimath() by re-calculating the robust range. This should be faster than re-calculating the robust range in JavaScript. This function also uses the NIfTI header scl_slope and scl_inter to appropriately handle integer values.
Code cleanup: Removes unused variables.