http://en.wikipedia.org/wiki/Kirlian_photography">Kirlian photography is completely different from aura photography, in which a colorful image is produced of a person's face and upper torso by interpreting galvanic skin responses and adding color to the photograph using a printer. The images made with an Aura camera do not result from coronal discharge. In aura photography, no high voltage is involved as with the Kirlian technique, and no direct contact with the film is made.
Some people claim that different people have different colored auras and some claim that the color of the aura depends on the mood of the individual. What would cause the energy to have a color to the naked eye?
Clothing is not relevant as the field is around the person, plant or whatever.If this is true, then one could easily prove they had the ability to see auras by using a hanging sheet. The person who could see auras would be on one side (along with someone who could not see auras as a control), while different body parts and objects could be pushed into the sheet on the other. There may be some additional details which would need to be worked out.