How to get brightness level form UIImage

How to get brightness level form UIImage

References

Reference NO 1

http://stackoverflow.com/questions/15200794/how-to-get-brightness-level-form-uiimage

Reference NO 2

http://stackoverflow.com/questions/12242354/how-to-change-the-brightness-and-contrast-of-an-uiimage-in-ios6

Reference NO 3

http://stackoverflow.com/questions/10781289/how-can-i-get-the-brightness-of-outside-environment-by-iphone

Reference NO 4

http://stackoverflow.com/questions/547691/is-there-a-way-to-query-the-current-brightness-level-of-a-the-macbook-lcd

Reference NO 5

http://stackoverflow.com/questions/14610744/luminosity-from-ios-camera

Reference NO 6

http://iphonedevsdk.com/forum/iphone-sdk-development/10094-adjust-image-brightness-or-contrast-on-the-fly.html

Reference NO 7

#EANF#

Reference NO 8

#EANF#