Active shape models (ASM) and active appearance models (AAM) restrict the shape deformation to a subspace to exploit the priori knowledge.
Formulated as an optimization problem, the objective function of AAM is the same for all shapes.
setenv – Set environment variable
setenv(name,value) sets the value of an environment variable belonging to the underlying operating system.
If name already exists as an environment variable, then setenv replaces its current value with the string given in value. If name does not exist, setenv creates a new environment variable called name and assigns value to it.
setenv(name) is equivalent to setenv(name, ”) and assigns a null value to the variable name.