Hi,

In my web app i'm uploading pictures of employees and I need to resize the images while maintaining the same quality.  The best example I can think of is the way facebook does their image resizing.  When you upload a profile picture...the picture shown in your profile page isn't the full size...i tried to find an algorithm that would work but am having no luck. 

 Any ideas?

 Thanks

 private string createthumbnail(string originalimage, int resizewidth, int resizeheight)
    {

        string ImgThumb ="path you like to save"    
        string imgFileName = System.IO.Path.GetFileName(originalimage);
        System.Drawing.Image myimg = System.Drawing.Image.FromFile(originalimage);
        myimg = myimg.GetThumbnailImage(resizewidth, resizeheight, null, IntPtr.Zero);
        myimg.Save(ImgThumb + imgFileName, myimg.RawFormat);
        string path = ImgThumb + imgFileName;
        return path;
    }

Refer to:

http://www.4guysfromrolla.com/articles/012203-1.aspx

http://www.codeproject.com/KB/web-image/pnguploader.aspx

http://69.10.233.10/KB/vb/ImageResize.aspx

Hello j2flk,

Here is one of the best solutions I could find on the Internet.

http://www.codeproject.com/KB/GDI-plus/imageresize.aspx?display=Print 

Also, please check my thread http://forums.asp.net/t/1433678.aspx . If you implement this solution and you find a resolution for my problem, please post it on my thread. Good luck!

Hey Guys,

Thanks for your help....i'm just going to go with a solution I found in ASP.NET 3.5 Social Networking....it's a pretty simple solution but if anyone is curious as to what it is then just let me know and i'll post it.

 One problem I am encountering however is that I want to resize on the fly....the problem with this is that to display my image i'm using asp Image.  My algorithm creates a bitmap however...and i don't know how I can assign this bitmap to the asp image.  Any ideas?

If your algorithm stores it with name "test.jpg" in image folder then use:

Image1.ImageURL = "~/image/test.jpg"

 Hi j2flk,

Can you post your simple solution. I am trying ro resize an image according to the size of the browser window. Maybe it can help

Thanks and regards,

Dani

j2flk:

Hi,

In my web app i'm uploading pictures of employees and I need to resize the images while maintaining the same quality.  The best example I can think of is the way facebook does their image resizing.  When you upload a profile picture...the picture shown in your profile page isn't the full size...i tried to find an algorithm that would work but am having no luck. 

 Any ideas?

 Thanks

There is a great site for resizing your images without affecting the quality of the image. It is: http://www.reshade.com . You can Enhance, crop and resize images for free with the high quality online image resizer.

The Photo Enlargement Software at this site is the most accurate photo enlargement method for your PC. It would sure give you a Best quality image resizing, better than photoshop or other tools. Compared to other photo enlargers on the market Reshade works best at any zoom not only specific ranges (1x-4x, 3x-5x etc).

You can check it out at: http://www.reshade.com