Click here to Skip to main content
13,401,763 members (51,619 online)
Click here to Skip to main content
Add your own
alternative version

Tagged as


28 bookmarked
Posted 21 Feb 2008

Resizing Batch Images

, 21 Feb 2008
Rate this:
Please Sign up or sign in to vote.
Resize all images in the source folder and save them in the destination folder


This application gets the source folder of images/photos in JPEG format and resizes them into a specific size and saves them into a destination directory.
The user can check crop setting for cropping images before resizing them.

Using the Code

Public Function ResizePicture(ByVal sourceImage As Bitmap, _
     ByVal newSize As Size) As Bitmap

     Dim Result_image As New Bitmap(sourceImage, newSize.Width, newSize.Height)
     Dim Gr As Graphics

     Gr = Graphics.FromImage(Result_image)
     Gr.DrawImage(Result_image, 0, 0, newSize.Width, newSize.Height)

     Return Result_image
 End Function

 Public Function CropBitmap(ByVal inputBmp As Bitmap, _
     ByVal cropRectangle As Rectangle) As Bitmap
     'Create a new bitmap object based on the input
     Dim newBmp As New Bitmap(cropRectangle.Width, _
              cropRectangle.Height, _
              System.Drawing.Imaging.PixelFormat.Format24bppRgb) 'Graphics.FromImage
                     'doesn't like Indexed pixel format

     'Create a graphics object and attach it to the bitmap
     Dim newBmpGraphics As Graphics = Graphics.FromImage(newBmp)

     'Draw the portion of the input image in the crop rectangle
     'in the graphics object
     newBmpGraphics.DrawImage(inputBmp, _
           New Rectangle(0, 0, cropRectangle.Width, cropRectangle.Height), _
             cropRectangle, _

     'Return the bitmap

     'newBmp will have a RawFormat of MemoryBmp because it was created
     'from scratch instead of being based on inputBmp.  Since it is inconvenient
     'for the returned version of a bitmap to be of a different format, now convert
     'the scaled bitmap to the format of the source bitmap
     Return newBmp
 End Function

I wrote this application in about 30 minutes. This program is useful for batch resizing for a large number of photos.


  • 21st February, 2008: Initial post


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

reza shirazi
Web Developer
Iran (Islamic Republic of) Iran (Islamic Republic of)
No Biography provided

You may also be interested in...

Comments and Discussions

GeneralMy vote of 5 Pin
manoj kumar choubey7-Mar-12 6:33
membermanoj kumar choubey7-Mar-12 6:33 
Generalkhalid altahree student from yemen Pin
khalid altahree26-Nov-08 3:52
memberkhalid altahree26-Nov-08 3:52 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

Permalink | Advertise | Privacy | Terms of Use | Mobile
Web01 | 2.8.180218.2 | Last Updated 21 Feb 2008
Article Copyright 2008 by reza shirazi
Everything else Copyright © CodeProject, 1999-2018
Layout: fixed | fluid