Solved

All type of  Image resize with 0%  quality loss

Posted on 2009-04-10
4
257 Views
Last Modified: 2012-05-06
Hello Experts,

We are developing one website using ASp.net 2.0 and sqlserver 2005.

User can upload any size of image and their snaps from website just like picasa and other sites.

there is no size restriction they can upload any size image.

i just want to resize it  with same image ratio but image quality needs to be maintain. it shoul not get distorted.

is that possible using any component ? or

we can manage it through coading ?

Thanks.
Kinjal
0
Comment
Question by:dotsandcoms
  • 2
  • 2
4 Comments
 
LVL 10

Accepted Solution

by:
Chad Smith earned 500 total points
ID: 24115365



public void ResizeImage(double scaleFactor, Stream fromStream,Stream toStream)

{

    var image = Image.FromStream(fromStream);

    var newWidth = (int)(image.Width * scaleFactor);

    var newHeight = (int)(image.Height * scaleFactor);

    var thumbnailBitmap = new Bitmap(newWidth, newHeight);

 

    var thumbnailGraph = Graphics.FromImage(thumbnailBitmap);

    thumbnailGraph.CompositingQuality =CompositingQuality.HighQuality;

    thumbnailGraph.SmoothingMode = SmoothingMode.HighQuality;

    thumbnailGraph.InterpolationMode =InterpolationMode.HighQualityBicubic;

 

    var imageRectangle = new Rectangle(0, 0, newWidth, newHeight);

    thumbnailGraph.DrawImage(image, imageRectangle);

 

    thumbnailBitmap.Save(toStream, image.RawFormat);

 

    thumbnailGraph.Dispose();

    thumbnailBitmap.Dispose();

    image.Dispose();

}

 

Open in new window

0
 

Author Comment

by:dotsandcoms
ID: 24121225
Can i have input values for  fromstream and tostream ?

I mean code to assign input values for fromstream and tostream


0
 
LVL 10

Expert Comment

by:Chad Smith
ID: 24122055
This code will put an Image into a MemoryStream
            MemoryStream ms = new MemoryStream();

            Image img = Image.FromFile("file.name");

            img.Save(ms, ImageFormat.Jpeg);

Open in new window

0
 

Author Comment

by:dotsandcoms
ID: 24128128
how to write code for tostream as we had not created any file for that yet ?

0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
ASP.net VB.net Object not set to an instance of an object 4 33
Achieve json result 2 65
c# LinkButton OnClientClick 2 34
asp.net mvc input file 2 32
Today is the age of broadband.  More and more people are going this route determined to experience the web and it’s multitude of services as quickly and painlessly as possible. Coupled with the move to broadband, people are experiencing the web via …
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory. NOTE: For Outlook 2016 and 2013 perform the exact same steps. Open a new email: Click the New email button in Outlook. Start typing the address: …
Concerto provides fully managed cloud services and the expertise to provide an easy and reliable route to the cloud. Our best-in-class solutions help you address the toughest IT challenges, find new efficiencies and deliver the best application expe…

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now