Before you start working with photo images on your computer (or even view them), you should really make sure that your video subsystem is capable and is displaying things correctly. These pages will assist you in adjusting your monitor by providing various test patterns. They also give a brief introduction to issues involved in calibrating a monitor
M. Kranz, W. Spiessl, and A. Schmidt. Proc. Fifth Annual IEEE International Conference on Pervasive Computing
and Communications PerCom '07, page 79--86. (2007)
P. Sastry, P. Krishnaiah, P. Rao, and D. Vathsal. International Journal on Recent and Innovation Trends in Computing and Communication, 3 (1):
264--267(January 2015)
M. Ahluwalia, and L. Bull. Proceedings of the Genetic and Evolutionary
Computation Conference, 2, page 947--952. Orlando, Florida, USA, Morgan Kaufmann, (13-17 July 1999)
N. Nawa, H. de Garis, F. Gers, and M. Korkin. Genetic Programming 1998: Proceedings of the Third
Annual Conference, page 875--882. University of Wisconsin, Madison, Wisconsin, USA, Morgan Kaufmann, (22-25 July 1998)