On Sun, Aug 29, 2010 at 12:54 AM, P Kishor <[email protected]> wrote: > I have the following piddle > > pdl> $a = ones(5, 4)->random > pdl> p $a > [ > [ 0.45599306 0.67084488 0.7872064 0.80197957 0.31240432] > [ 0.20072609 0.02941865 0.86771778 0.16045055 0.11242522] > [0.017854221 0.20779644 0.74310164 0.41471134 0.54152694] > [ 0.85162429 0.087391935 0.046048242 0.92007438 0.15784042] > ] > > What is the most straight-forward way to create an image whose every > pixel is colored with some factor based on each of the above values? > > I guess, I am seeking recommendations for image IO modules that would > accomplish the above. There are a bunch of Graphics and IO modules, > for example, PDL::IO::Pic,
Hmmm... PDL::IO::Pic is giving me a bit of heartburn via NetPBM. I tried the following pdl> wim($a, 'foo.gif') PDL: wpnm: pbmconverter error: sh: ppmtogif: command not found So, I downloaded NetPBM svn checkout http://netpbm.svn.sourceforge.net/svnroot/netpbm/stable netpbm and tried building the above. On running make, I got a bunch of errors like so that ended in make error -O3 -ffast-math -pedantic -fno-common -Wall -Wno-uninitialized -Wmissing-declarations -Wimplicit -Wwrite-strings -Wmissing-prototypes -Wundef -o pnmtopng.o pnmtopng.c pnmtopng.c: In function ‘makePngLine’: pnmtopng.c:2112: warning: ‘color_type’ is deprecated (declared at /usr/local/include/libpng14/png.h:653) pnmtopng.c:2113: warning: ‘color_type’ is deprecated (declared at /usr/local/include/libpng14/png.h:653) pnmtopng.c:2117: warning: ‘color_type’ is deprecated (declared at /usr/local/include/libpng14/png.h:653) pnmtopng.c:2124: warning: ‘c .. make[2]: *** [pngtopnm.o] Error 1 make[1]: *** [other/all] Error 2 make: *** [converter/all] Error 2 Why? The problem seems to be stemming from my libpng, which I installed successfully not too long ago. Any ideas? > PDL::IO::GD, and the many PDL::Graphics::* > modules. Where am I looking to start? > > I want to output PNGs and possibly Tiffs (geotiffs). > > > -- Puneet Kishor http://www.punkish.org Carbon Model http://carbonmodel.org Charter Member, Open Source Geospatial Foundation http://www.osgeo.org Science Commons Fellow, http://sciencecommons.org/about/whoweare/kishor Nelson Institute, UW-Madison http://www.nelson.wisc.edu ----------------------------------------------------------------------- Assertions are politics; backing up assertions with evidence is science ======================================================================= _______________________________________________ Perldl mailing list [email protected] http://mailman.jach.hawaii.edu/mailman/listinfo/perldl
