Re: CAPTCHA image validation in web form

That would be cool to use the iseries functionality to generate the
images, but a quick search on iseries printing (AFP, InfoPrint Server,
etc.) didn't indicate that a character could be rotated. Of course
Postscript supports it and it's an addon to InfoPrint Server, per the
IBM blurbs, and maybe the "precise character positioning and alignment"
feature includes that, I don't know.

However, just wanted to clarify that the rotation that is done in
most CAPTCHA's isn't that critical to busting OCR's, just slightly
overlapping a couple of the characters will do it. So in that regard,
the DDS AFP POSITION keyword I saw I think could definitely do that.

But then getting the spoolfile into some graphics format and
clipping the characters out and converting into one of the HTML
supported formats if for example it was in TIFF would probably require
more effort than just generating the images with that Java program. :)

rd


vhamberg@xxxxxxxxxxx wrote:

I've been thinking about native image generation as this thread continures.

Seems one could generate oddly placed numbers into a spooled file using the

various font characteristics and rotation, then run the result through
HPT or

InfoPrint Server to get a graphic image - we have a couple converter
products

that could help in the effort, but this is not specifically a vendor plug.

There are also a TIFF library and a PNG library of functions that can be

installed into PASE. Maybe these have some uses in such a process.

Eh?

Vern