encode text to image

[paolo mazza]

Thank you Dar .
I have to store an image in a MySQL database and I was told I could store
the text... it is not gonna work ... I thought it was like that.... but I
wanted be sure that there was not a way to recover the imagedata from the
text.

So, I have to encode and decode the image data ... I tryed this way, but
unfortunately , when I decode image data and upload it in in the database,
some chars get lost.

Ciao Paolo

>
>
>> I imported an image as text (URL file:xxx)
>> I wonder if I can convert the text file to binary and set the  
>> imagedata of
>> an image to it
>
>If the image file format is inherently binary, such as PNG or JPEG,  
>then you should read it as a binary file (URL binfile:).  Reading a  
>binary file as a text file will corrupt it.
>
>
>If it is really text, then it probably has some header information  
>that includes the size, and then a bunch of numerals in decimal or  
>hex.  You need to know what its format is.
>
> From that, you can build imageData.  If the file has an alpha  
>channel (transparency) you can also build alphaData.

>
>
>After you have the image data, set the text of the image to empty  
>then set the height and width of the image, then set the imageData  
>(and alphaData).  (I'm going by memory; there might be a flaw in that.)
>
>If the image file is really JPEG or PNG then simply set the text of  
>the image to the value.
>
>Dar Scott


********************************************************
Paolo Mazza
NEOL SRL
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