How to use pixel operators?

• What are we looking for using pixel operators?

What are we looking for using pixel operators?

While we have template pixels, one should want to do some math with then:

• p += 10;
• p += p1;
• p = p1 + p2;
• p = p1*(p2 + p3);
• p = 0.5*p1 + 0.2*p2;
• p *= exp(x);
• p -= 5*p1 / (3*p2 + 2*p3);
• p = pow(p1, 0.5);
• ...

But doing math with template resolution is not possible without taking care of some restrictions.