Now get your grain reading in just ONE second! Easier to use than ever before, GREEiN is sure to help your score! Even pros admit that it’s difficult to read both the slope and the grain. But with the new putt training app GREEiN, it’s a snap! GREEiN has 3 easy-to-use functions: GRAIN reader shows the roughness and direction of the grain! SLOPE reader shows the degree and direction of the slope! PUTT reader shows both, all at once! All golfers who want to improve their score, everyone who wants to train their green reading skills, GREEiN is the perfect app for you! Enjoy golf even more with GREEiN! This application was developed using open CV technology.