image scaling

[Michael Hübner]

Hi guys,

I need to scale an image before inserting it into a database. But I
really have no idea - everything on the net that I have found so far is
dealing with files that are physically stored in a folder. Does anyone
of you have any sample code or links for me?

Thanks in advance,

Michi

 

[Michael Nemtsev]

You are in the right direction
You can use the samples you found. Everything you need is consider working
with your images from memory stream, not from the file stream like in folders.

Smth like this
byte[] b = (byte[])cmd.ExecuteScalar();

// Open a stream for the image and write the bytes into it
MemoryStream stream = new System.IO.MemoryStream(b, true);
stream.Write(b, 0, b.Length);

// Create a bitmap from the stream
Bitmap bmp = new Bitmap(stream);

 

[Braulio Diez]

You have to play with streams, about how to scale (easy algorithm) and
playing with the image in memory:


http://www.thescripts.com/forum/thread225328.html

http://www.codeproject.com/csharp/imageresize.asp

http://www.dotnet247.com/247reference/msgs/31/156505.aspx

http://www.informit.com/articles/article.aspx?p=377078&rl=1

About how to save images on SQL Server:

http://www.codeproject.com/useritems/Store_images_in_SQL_Serve.asp

HTH
Braulio

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