Embedd Text Data into Bitmap

[ktallan]

Hi All,

I currently have a data app which stores separately an image file and parameters values separately in a database.
I would like for the sake of reporting to embedd the parameter values into the bitmap file. Does anyone have any ideas on how I can achieve this.

Anysuggestions are welcomed as I am new to GDI programming.

 

[Paszt]

The System.Drawing.Graphics.DrawString method is the one you'll be interested in.
There are many good articles on GDI+ at: BobPowell.net

 

[JohnH]

ktallan, if you perhaps didn't mean to draw text onto the images I see two other possible views of your request:

1) Exif (Exchangeable image file format), it's an old standard for storing meta data about images inside them, most imaging software and Windows Explorer supports to read this information from image files that contains such data. For example you can get file properties of an image, see Summary tab and click Advanced, if image was taken with a digital camera chances are great that all kinds of properties are listed. You of course also use Exif records for you own purpose. Check Wiki: http://en.wikipedia.org/wiki/Exif

2) Steganography, this is about hiding data inside the image files as binary blocks that won't interfere with the actual image bytes, this is done by knowing and exploiting the inner architecture of specific image formats. ex: http://www.garykessler.net/library/steganography.html

So you figure out what you really are asking for, now that you have three different interpretations of your question there should be some info for you to research.