Hi all,
I wrote a simple .net app which resizes all images in a directory to a
preset imagesize. I want to take this a step further and add a 10px white
border around the image. I can't figure out how to achieve this ... can
someone tell me how to resize the canvas-size and not the entire image...
Thanks in advance!
5  2022 
* "Sjaakie Helderhorst" <di*********@hotNOTmail.com> scripsit: I wrote a simple .net app which resizes all images in a directory to a
preset imagesize. I want to take this a step further and add a 10px white
border around the image. I can't figure out how to achieve this ... can
someone tell me how to resize the canvas-size and not the entire image...
\\\
Dim bmp As New Bitmap( _
"C:\Lagoon1024x768.bmp" _
)
Dim bmp2 As New Bitmap( _
bmp.Width * 0.1 + 20, _
bmp.Height * 0.1 + 20, _
Imaging.PixelFormat.Format24bppRgb _
)
Dim g As Graphics = Graphics.FromImage(bmp2)
g.Clear(Color.White)
' Select/change interpolation mode here.
g.InterpolationMode = _
Drawing.Drawing2D.InterpolationMode.HighQualityBic ubic
' Draw image using specified interpolation mode.
g.DrawImage(bmp, 10, 10, bmp2.Width, bmp2.Height)
g.Dispose()
Me.PictureBox1.Image = bmp2
bmp2.Save("C:\foo.bmp")
..
..
..
///
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
"Herfried K. Wagner [MVP]" <hi***************@gmx.at> schreef in bericht
news:2j*************@uni-berlin.de... * "Sjaakie Helderhorst" <di*********@hotNOTmail.com> scripsit: I wrote a simple .net app which resizes all images in a directory to a
preset imagesize. I want to take this a step further and add a 10px
white border around the image. I can't figure out how to achieve this ... can
someone tell me how to resize the canvas-size and not the entire
image...
\\\
Dim bmp As New Bitmap( _
"C:\Lagoon1024x768.bmp" _
)
Dim bmp2 As New Bitmap( _
bmp.Width * 0.1 + 20, _
bmp.Height * 0.1 + 20, _
Imaging.PixelFormat.Format24bppRgb _
)
Dim g As Graphics = Graphics.FromImage(bmp2)
g.Clear(Color.White)
' Select/change interpolation mode here.
g.InterpolationMode = _
Drawing.Drawing2D.InterpolationMode.HighQualityBic ubic
' Draw image using specified interpolation mode.
g.DrawImage(bmp, 10, 10, bmp2.Width, bmp2.Height)
g.Dispose()
Me.PictureBox1.Image = bmp2
bmp2.Save("C:\foo.bmp")
.
.
.
///
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Didn't know it was that easy :)
Thanks!
"Herfried K. Wagner [MVP]" <hi***************@gmx.at> schreef in bericht
news:2j*************@uni-berlin.de... * "Sjaakie Helderhorst" <di*********@hotNOTmail.com> scripsit: I wrote a simple .net app which resizes all images in a directory to a
preset imagesize. I want to take this a step further and add a 10px
white border around the image. I can't figure out how to achieve this ... can
someone tell me how to resize the canvas-size and not the entire
image...
\\\
Dim bmp As New Bitmap( _
"C:\Lagoon1024x768.bmp" _
)
Dim bmp2 As New Bitmap( _
bmp.Width * 0.1 + 20, _
bmp.Height * 0.1 + 20, _
Imaging.PixelFormat.Format24bppRgb _
)
Dim g As Graphics = Graphics.FromImage(bmp2)
g.Clear(Color.White)
' Select/change interpolation mode here.
g.InterpolationMode = _
Drawing.Drawing2D.InterpolationMode.HighQualityBic ubic
' Draw image using specified interpolation mode.
g.DrawImage(bmp, 10, 10, bmp2.Width, bmp2.Height)
g.Dispose()
Me.PictureBox1.Image = bmp2
bmp2.Save("C:\foo.bmp")
.
NOTE: g.DrawImage(bmp, 10, 10, bmp2.Width, bmp2.Height) should be replaced
by g.DrawImage(bmp, 10, 10) or it will end up with borders at only left and
top...
* "Sjaakie Helderhorst" <di*********@hotNOTmail.com> scripsit: NOTE: g.DrawImage(bmp, 10, 10, bmp2.Width, bmp2.Height) should be replaced
by g.DrawImage(bmp, 10, 10) or it will end up with borders at only left and
top...
OK, I didn't test the code before posting it ;-).
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
"Herfried K. Wagner [MVP]" <hi***************@gmx.at> schreef in bericht
news:2j*************@uni-berlin.de... * "Sjaakie Helderhorst" <di*********@hotNOTmail.com> scripsit: NOTE: g.DrawImage(bmp, 10, 10, bmp2.Width, bmp2.Height) should be
replaced by g.DrawImage(bmp, 10, 10) or it will end up with borders at only left
and top...
OK, I didn't test the code before posting it ;-).
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Lol, never mind, I'd never got this far without your help, thanks again! This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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