Adjust Contrast in VB.net : Source Code Much Appreciated :) TY

[eychpy]

Can Some one help me.. in adjusting the contrast of a picture in a pictrue box ty..

 

[JohnH]

Applying a syncronized scaling transformation with the ColorMatrix class will adjust contrast of image. (by syncronized meaning all values adjusted with same amount)
Link with some examples: http://www.c-sharpcorner.com/Code/2004/April/Transformations05.asp