Monochrome BMP (VB)

[mauleTTT]

Monochrome BMP

Hi all!

Anyone knows the way to transform any type of BMP picture (with colours) into a monochrome type picture

 

[Divil]

Check out Bob Powells GDI+ faq.

http://www.bobpowell.net/gdiplus_faq.htm

 

[ThePentiumGuy]

edit with paint
save as Monochrome Bitmap

unless ur trying to do that within the program:
just use 2 bitmaps
1 colr and 1 mono. and then use the GDI+ to display the mono ontop of te color

 

[mauleTTT]

Thanks for the answers,

 

[Hamburger1984]

Theres another quite easy solution:

Dim source As New Bitmap("C:\myColoredImage.jpg")
Dim dest As New Bitmap(source.Width, source.Height)
Dim destGraph As Graphics = Graphics.FromImage(dest)
ControlPaint.DrawImageDisabled(destGraph, source, 0, 0, Color.Empty)
destGraph.Dispose()
dest.Save("C:\myGrayscaleImage.jpg")