Solved

C# .net Image Resizer

Posted on 2014-02-07
1
309 Views
Last Modified: 2014-02-19
Hi

I have the following piece of code which resizes images to 620 pixels wide by 414 pixels high

Problem is when someone uploads a picture say 309 pixels wide by 414 pixels high it stretches the image to 620 pixels wide.

Anyone know how to amend this so if the width of a picture is less that 620 pixels wide it adds white space to either side of the image?

Thanks in advance

using System.Drawing;
using System.Drawing.Drawing2D;

public class ImageResizer
{
    public static Image ResizeImage(Image image, Size size, bool preserveAspectRatio)
    {
        int newWidth;
        int newHeight;
        if (preserveAspectRatio)
        {
            int originalWidth = image.Width;
            int originalHeight = image.Height;
            float percentWidth = (float)size.Width / (float)originalWidth;
            float percentHeight = (float)size.Height / (float)originalHeight;
            float percent = percentHeight < percentWidth ? percentHeight : percentWidth;
            newWidth = (int)(originalWidth * percent);
            newHeight = (int)(originalHeight * percent);
        }
        else
        {
            newWidth = size.Width;
            newHeight = size.Height;
        }
        Image newImage = new Bitmap(newWidth, newHeight);
        using (Graphics graphicsHandle = Graphics.FromImage(newImage))
        {
            graphicsHandle.InterpolationMode = InterpolationMode.HighQualityBicubic;
            graphicsHandle.DrawImage(image, 0, 0, newWidth, newHeight);
        }
        return newImage;
    }
}

Open in new window

0
Comment
Question by:TPLLimited
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 19

Accepted Solution

by:
Melih SARICA earned 500 total points
ID: 39841551
Create a bitmap with white background
resize height
draw image on this bitmap.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Suggested Solutions

PaperPort is a popular document imaging/management product from Nuance Communications (http://www.nuance.com/), previously known as ScanSoft. PaperPort is in widespread use by both individuals (http://www.nuance.com/for-individuals/by-product/paperp…
This article discusses the PaperPort 14 Scanner Connection Tool, which Nuance provides at no charge in order to fix scanning problems in Windows 8. Furthermore, users of PaperPort 14 in Windows 7 and Windows 10 have reported that the tool works in t…
In this Micro Tutorial viewers will learn more advanced shortcuts and functions in InDesign.
The goal of the tutorial is to teach the user how to make his/her own presets while editing so it is easier to edit there photos. Create a preset you like and copy that setting then save it in to your presets folder.

738 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