How to reduce the size of Binary image.

Basit Khan

10y3.3k.NET

hi,

I have store binary image in my database. the sizes(width&height) are different different in database.

now i want to show the image, while showing the image i want to reduce the size.

Dim abc As String

abc = System.Text.Encoding.Unicode.GetString(dr("Image2"))

'then the result is

picture.image="data:image/gif;base64,R0lGODlhEAAOALMAAOazToeHh0tLS/7LZv/0jvb29t/f3//Ub//ge8WSLf/rhf/3kdbW1mxsbP//mf///yH5BAAAAAAALAAAAAAQAA4AAARe8L1Ekyky67QZ1hLnjM5UUde0ECwLJoExKcppV0aCcGCmTIHEIUEqjgaORCMxIC6e0CcguWw6aFjsVMkkIr7g77ZKPJjPZqIyd7sJAgVGoEGv2xsBxqNgYPj/gAwXEQA7"

above is the example to show the image.

Thanks

Basit.

2 Replies

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Joginder Banger10y ago
you can reduce image size this way
publicstaticImageresizeImage(Imageimage,intnew_height,intnew_width)
{
Bitmapnew_image=newBitmap(new_width,new_height);
Graphicsg=Graphics.FromImage((Image)new_image);
g.InterpolationMode=InterpolationMode.High;
g.DrawImage(image,0,0,new_width,new_height);
returnnew_image;
}
another way
privatestaticImageResizeImage(intnewSize,ImageoriginalImage)
{
if(originalImage.Width<=newSize)
newSize=originalImage.Width;
varnewHeight=originalImage.Height*newSize/originalImage.Width;
if(newHeight>newSize)
{
//Resizewithheightinstead
newSize=originalImage.Width*newSize/originalImage.Height;
newHeight=newSize;
}
returnoriginalImage.GetThumbnailImage(newSize,newHeight,null,IntPtr.Zero);
}
source : Stackoverflow.com
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Joginder Banger10y ago
Hello dear,
I am not sure but that's not possible, just think when reduce size of in binary code we have no idea which code we reduce. I assume you are convert image in systembase64 (data:image/gif;base64). before convert in binary reduce image height and width then save in database, If you do this way you have idea which parts of reduce.
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