Tranform images to a black and white, sepia and old brown to

[joel_fe]

hello:
Im new in imagemagic, so i need help. Actualy i´m, developing a PhotoKiosk in Visual basic, so I need to:

1. Transform a color image to a black and white image
2. Transform a color image to a sepia tone
3. Transform a color image to an old brown tone (Like an old photo )
4. Give brigthness to an image

I already try to do it, but I dont no how are the correct parameters or if I´m using the wrong commands.

I really apreciate if yo can send me samples with the necesary commands to do this 4 points.

Thank you a lot

Joel