This is the background material:
Say File1.m is something like you showed, and you're expecting the processed image to be returned by File2:
I=snapshot(camera);
graypict=File2(I);
and then File2.m would look something like this:
function outpict=File2(inpict)
outpict=rgb2gray(inpict);
end
Though maybe you'd want to choose a better function name than "File2", and maybe you want it to do more than one thing. Let's say it needs to be flipped too:
function outpict=grayimageflipper(inpict)
outpict=flip(rgb2gray(inpict),2);
end
... which would be called like:
flippedpicture=grayimageflipper(I);
and so on. In both examples, the first non-commented line in File2 is a function definition that describes three basic things:
- The output argument(s)
- The function name
- The input argument(s)
There can be multiple input and output arguments specified, and the number of arguments can be variable. It all depends what you want to do.
