Signature with transparent background

General
1

Hello I created an image of my signature on a piece of white paper and scanned it.

When I add it to a document the white background is visible.

How can I modify that to show the signature without borders or background?

Thanks.

Lennox

2

create a mask for the image based on the white (or near white) pixels in the foreground

this code scans a directory for PNG files and creates a mask for each one…

Alter as is required for your situation

		Dim dlg As OpenDialog
		Dim f As FolderItem
		Dim p As picture
		Dim g As graphics
		Dim p_rgb As RGBSurface
		Dim m_rgb As RGBSurface
		Dim x As Integer
		Dim y As Integer
		dim i as integer
		dim f2 as FolderItem
		f2=GetFolderItem("")
		for i=1 to f2.Count
				f=f2.TrueItem(i)
				if right(f.DisplayName,4)<>".png" then continue
				p=picture.Open(f)
				g=p.Graphics
				p_rgb=p.RGBSurface
				m_rgb=p.Mask.Rgbsurface
				m_rgb.FloodFill(0,0,&c000000)
				For x=0 To g.Width
						For y=0 To g.Height
								//if p_rgb.pixel(x,y)=&c000000 then p_rgb.pixel(x,y)=&cffffff
								If p_rgb.Pixel(x,y)=&cffffff Then 
										m_rgb.pixel(x,y)=&cffffff
								Else
										m_rgb.pixel(x,y)=&c000000
								End If
						Next y
				Next x
				p.Transparent=1
				p.Save(f,picture.SaveAsPNG)
		next i
		MsgBox "done"
		Quit
3

Thanks Dave,

Works great as you recommended “Alter as is required for your situation”.

Thanks Again!

Lennox