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Thread: Image Headers

  1. Jan 31st, 2006, 12:29 PM #1
    2MuchRiceMakesMeSick
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    Cool Image Headers

    Does anyone know how to read and write to a .jpg image header?

    Thanks in advance.
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  2. Feb 1st, 2006, 04:17 PM #2
    2MuchRiceMakesMeSick
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    Re: Image Headers

    anyone?
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  3. Feb 1st, 2006, 11:00 PM #3
    MrPolite
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    Re: Image Headers

    you can use PropertyItems
    what exactly do you want to do? what image information are you modifying/writing, that would be helpful
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    Extract thumbnail without reading the whole image file: (C# - VB)
    Apply texture to bitmaps: (C# - VB)
    Extended console library: (VB)
    Save JPEG with a certain quality (image compression): (C# - VB )
    VB.NET to C# conversion tips!!
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  4. Feb 2nd, 2006, 12:02 AM #4
    2MuchRiceMakesMeSick
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    Re: Image Headers

    there is a cool program called hide and encrypt.

    I was wondering how I would write my own version for fun.

    http://www.topshareware.com/Hide-and...load-12040.htm


    It takes an images and hides data in the file.
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  6. Feb 2nd, 2006, 07:03 PM #5
    MrPolite
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    Re: Image Headers

    uh i see
    well there is a method where you actually modify color values in a certain way and hold the data that way... it could be doing that.
    You need to look up EXIF documentation and figure out the proper EXIF tags... each tag has an ID. You can add new ones using the PropertyItem class....
    not so straightforward
    rate my posts if they help ya!
    Extract thumbnail without reading the whole image file: (C# - VB)
    Apply texture to bitmaps: (C# - VB)
    Extended console library: (VB)
    Save JPEG with a certain quality (image compression): (C# - VB )
    VB.NET to C# conversion tips!!
    Reply With Quote Reply With Quote
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