Is it possible to use 'impixel' externally on a Raspberry Pi

Hello, I am trying to run a program on Raspberry Pi, using a SIMULINK Model that has a MATLAB embedded program. This program uses 'impixel', however I get the following error:

The extrinsic function 'impixel' is not available for standalone code generation. It must be eliminated for stand-alone code to be generated. It could not be eliminated because its outputs appear to influence the calling function. Fix this error by not using 'impixel' or by ensuring that its outputs are unused.

Is it possible to use 'impixel' to run externally on the Raspberry Pi, and if not is there an alternative.

regards

Andy Heron