"=?ISO-8859-1?Q?Alberto_Sim=F5es?=" on wrote...
| On 6/18/07, Ross Presser <[EMAIL PROTECTED]> wrote:
| > See http://www.imagemagick.org/Usage/distorts/#perspective
| >
| > Briefly, perspective transformation is *not* an affine transformation.
| > Affine transformations include only scaling, shearing, rotating and
| > translating, none of which can alter the ratio of lengths in the way
| > that perspective requires. Therefore the -affine option isn't going
| > to cut it. You have to do heavier lifting using the -fx option, using
| > numbers calculated using the perl script on that page (or a similar
| > method).
|
| Hmms, too slow for a CGI script. I need to get another tool to do this :(
|
Don't fret. Cristy is just putting together a general distortion
function, when that is done we should be able to insert perspective,
bilinear, and a whole swag of other common distortion functions into IM
very quickly.
We may even be able to add super-sampling for improved distortion results.
Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]>
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God, that was a realistic 'experience'.
The R&D boys were incredible. And quite mad.
--- Larry Niven and Steven Barnes, "Dream Park"
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Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/
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