The current rpic/wpic framework does not fully support 16-bit
image formats. If you convert your piddle to a ushort array and
then wpic() it to a tiff file, you'll get a 16-bit TIFF file. When you
try to rpic() it back, you get an incorrect 8-bit image back.
I've entered this as a bug #1850913 on the PDL sourceforge page
http://sourceforge.net/tracker/?group_id=612&atid=100612
Thanks for reporting the problem.
--Chris
János Gonzales wrote:
Hello,
This is probably really easy, but I'm a newbie so I'm not sure how to
do it. I'm trying to output a 16-bit Tiff, but all I get is an 8 bit
tiff.
Here's my pseudo code:
use PDL;
use PDL::NiceSlice;
use PDL::IO::Pic;
$blank_slate = zeroes(1800,900);
.......in here i add values to the blank_slate piddle from 0 to about 3000
$blank_slate->wpic("test.tif");
So, if I look at test.tiff it's 1800x900 pixels, but the max value is
255 and not 3000. If it was a 16-bit tiff it could accomodate this
value. I'm running this on Windows XP, and I have the netpbm binaries
installed. (I noticed my wpic command calls pnmtotiff )
Any ideas?
Thanks much,
Janos
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