Rasterizing dynamically generated images

I have a script that takes a piece of clip art on the
server, resizes it and
changes the color with imagemagick, and then outputs the new
image to the
browser. I've embedded some of the resulting images in my
SVG document using
the following tag:

<image
xlink:href="http://mydomain.com/clipart.php?i=ca_som
eimage&amp;c=00a650&amp;
w=156.95&amp;h=191.35" x="0"
y="0" width="156.95"
height="191.35" />

Basically that outputs an image that is about 156x191, with
a color of
#00a650. I don't know if the floating point dimension sizes
is bad, but it
seems to work ok. It takes a little while for the image to
pop up in the SVG
document, since imagemagick has to do its thing each time,
but it eventually
shows up just fine.

When I use batik-rasterizer to rasterize the SVG to a JPG,
the image shows
up in the correct location at the correct size, but the
colors are all
psychadelic. Does anyone have any idea what might cause
this?  The
clipart.php script outputs the image in PNG format, if that
matters.

Thanks,

Rob Hinst


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