i want to squeeze the image using c#.net

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Hi friends,

I want to squeeze the size of image i.e to reduce the height and width of image...

I have file name(image name) and I had extracted that name by using opendialog and then used the following statement openFileDialog1.FileName;

I have have tried the folowing coding but I'm not able to squeeze the image

MIDL

string file = openFileDialog1.FileName;
               FileInfo f = new FileInfo(file);
               Image img = Image.FromFile(file);
               Bitmap b = new Bitmap(20,20);
               Graphics g = Graphics.FromImage((Image)b);
               g.InterpolationMode = InterpolationMode.HighQualityBicubic;
               g.DrawImage(img, 0, 0, 20,20);
               img.Save(file);

please help me to solve this problem.
thanks in advance

Posted 9-May-11 9:45am

preet88

Updated 9-May-11 10:02am

Dalek Dave

v2

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Dalek Dave 9-May-11 16:02pm

Edited for Grammar and Readability.

Sergey Alexandrovich Kryukov 9-May-11 22:50pm

This is called "resampling".
--SA

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**Dalek Dave** · Answer 1 · 2011-05-09T09:58:00

Solution 1

Create a new Bitmap object of the required size.

Graphics.FromImage will create a graphic object for the new bitmap, then DrawImage to put the original image onto the new bitmap.

Save the new bitmap!

Jobs a good'un.

Posted 9-May-11 9:58am

Dalek Dave

Updated 9-May-11 9:59am

v2

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preet88 9-May-11 16:23pm

hi dalek it was not working i have done this as following
Image image = Image.FromFile(temp); //here temp stores image path from root
Bitmap bmp = new Bitmap(50, 50, PixelFormat.Format24bppRgb);
bmp.SetResolution(50, 50);
Graphics gfx = Graphics.FromImage(bmp);
gfx.SmoothingMode = SmoothingMode.AntiAlias;
gfx.InterpolationMode = InterpolationMode.HighQualityBicubic;
gfx.PixelOffsetMode = PixelOffsetMode.HighQuality;
gfx.DrawImage(image, new Rectangle(0, 0, 80, 80), 0, 0, 80, 80, GraphicsUnit.Pixel);
// Dispose to free up resources
image.Dispose();
bmp.Dispose();
gfx.Dispose();