force pull latest if 'latest' tagged image is different at registry

[gaurav517]

Is it possible to not to use local image tagged with 'latest' but to pull an image from registry, if there are changes.
So lets say,
I have my local image: myImage:latest
There is a remote image: myImage:latest on registry.
Now if we want to use this image, we compare whether image on registry is different than on local. If not different: use local image. If different: pull the one from registry.
Thanks a lot.