ASP.NET

Convert byte[ ] to image RSS

3 replies

Last post Sep 26, 2011 02:17 PM by donpisci

‹ Previous Thread|Next Thread ›

donpisci

Member

74 Points

178 Posts

Convert byte[ ] to image

Sep 07, 2011 02:52 PM|LINK

Hi All,

I'm running into a bit of trouble converting my byte array to an image.

I'm getting the following error:

System.ArgumentException: Parameter is not valid. at System.Drawing.Image.FromStream(Stream stream, Boolean useEmbeddedColorManagement, Boolean validateImageData)

Any ideas?

Thanks!

Here is my code:

ImageConverter ic = new ImageConverter();

            //imageBytes is my array
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            ms.Write(imageBytes, 0, imageBytes.Length);

            //System.Drawing.Image passImage = (System.Drawing.Image)ic.ConvertFrom(imageBytes);
            try
            {
                System.Drawing.Image passImage = System.Drawing.Image.FromStream(ms,true,true);
                webcamImage.Height = passImage.Height;
                webcamImage.Width = passImage.Width;
            }
            catch (System.ArgumentException ex)
            {
                Label1.Text = "Can't convert Image from bytes: </br>" + ex;
            }

Edited by donpisci on Sep 07, 2011 02:53 PM

- Reply
chiragvidani

Participant

1288 Points

254 Posts
Re: Convert byte[ ] to image

Sep 15, 2011 11:34 AM|LINK
Hello
```
Response.ContentType = imageEntity.ImageType; //Type of image
            Response.BinaryWrite(imageEntity.ImageContent); //bit data of image
```
Regards,
Chirag Vidani | My Blog
MCTS - .Net Framework 4.0, Web Applications

"…Mark As Answer" if my reply is helpful to you…”
- Reply
Raigad

Contributor

5131 Points

957 Posts
Re: Convert byte[ ] to image

Sep 15, 2011 11:37 AM|LINK
<div style="margin: 5px 20px 20px;"> <div class="smallfont" style="margin-bottom: 2px;">Code:</div>
```
public Image ByteArrayToImage(byte[] data)
{
MemoryStream bipimag = new MemoryStream(data);
Image imag = new Bitmap(bipimag);
return imag;
}
```
</div>
And to access that you can use this as follows:

pictureBox2.Image = ByteArrayToImage(data);
<div style="margin-top: 10px;" align="right"></div>
Babasaheb Kale
Mark as Answer, if the post helped you...
Visit My Blog
- Reply
donpisci

Member

74 Points

178 Posts
Re: Convert byte[ ] to image

Sep 26, 2011 02:17 PM|LINK
It turned out that the problem was solved by using the following:
```
imageBytes = Convert.FromBase64String(hfValue);
```
- Marked as answer by donpisci on Sep 26, 2011 02:18 PM