There is now a new software that can tell whether a person smile is happy or sad. Japan's Omron Corp has developed the "smile checker" software. Omron is hopeful that this software can be incorporated into digital cameras so that photographs can be taken when everyone is smiling. This software can also be used to help robots figure out if humans are happy and give "smile ratings" to people working in the service industry.

Highlights of the 'smile checker' software
a. This is a new software that can rate smiles.
b. It does so by analyzing facial features like wrinkles around the mouth and eyes and the space between the lips.
c. It has the ability to spot a smile in less than one tenth of a second.
d. All smiles are rated on a scale of zero to 100 per cent.
e. It is not yet known if the software can detect false smiles.