- int bicubic needs more precision? try a 10x upscale and compare to the double path - test python setup.py build_ext python setup.py build python setup.py install now we get: >>> from vipsCC import * Traceback (most recent call last): File "", line 1, in File "/usr/local/lib/python2.6/dist-packages/vipsCC/VImage.py", line 25, in vimagemodule = swig_import_helper() File "/usr/local/lib/python2.6/dist-packages/vipsCC/VImage.py", line 21, in swig_import_helper _mod = imp.load_module('vimagemodule', fp, pathname, description) ImportError: /usr/local/lib/python2.6/dist-packages/vipsCC/vimagemodule.so: undefined symbol: _ZTIN4vips5VMaskE ie. vimagemodule.so can't find libvipsCC.so I guess? or perhaps the compiler is being given a differnt mangling flag we're building with: gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -DDEBUG_FATAL=1 -DDEBUG_LEAK=1 -I/usr/lib/glib-2.0/include -I/usr/include/pango-1.0 -I/usr/include/libxml2 -I/usr/include/libpng12 -I/usr/include/libexif -I/usr/include/glib-2.0 -I/usr/include/freetype2 -I/usr/include/OpenEXR -I/usr/include/ImageMagick -I../../libvips/include -I../../libvipsCC/include -I/usr/include/python2.6 -c vimagemodule.cpp -o build/temp.linux-x86_64-2.6/vimagemodule.o -pthread -fopenmp -pthread -Wl,--export-dynamic -pthread -pthread -pthread g++ -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions build/temp.linux-x86_64-2.6/vimagemodule.o -Wl,-R/home/john/vips/lib -lMagickWand -lMagickCore -lpng12 -ltiff -lz -ljpeg -lgthread-2.0 -lrt -lglib-2.0 -lgmodule-2.0 -lxml2 -lgobject-2.0 -lgthread-2.0 -lrt -lglib-2.0 -lpangoft2-1.0 -lpango-1.0 -lfreetype -lfontconfig -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt -lglib-2.0 -lfftw3 -lm -llcms -lIlmImf -lz -lImath -lHalf -lIex -lIlmThread -lmatio -lz -lexif -lm -lstdc++ -lm -o build/lib.linux-x86_64-2.6/vipsCC/vimagemodule.so -pthread -fopenmp -pthread -Wl,--export-dynamic -pthread -pthread -pthread how does this compare to the working build? swig/vipsCC does g++ -DHAVE_CONFIG_H -I. -I../.. -I../../libvips/include -I../../libvipsCC/include -DDEBUG_FATAL -DDEBUG_LEAK -pthread -fopenmp -I/usr/lib/glib-2.0/include -I/usr/include/pango-1.0 -I/usr/include/libxml2 -I/usr/include/libpng12 -I/usr/include/libexif -I/usr/include/glib-2.0 -I/usr/include/freetype2 -I/usr/include/OpenEXR -I/usr/include/ImageMagick -I/usr/include/python2.6 -g -Wall -MT vimagemodule.lo -MD -MP -MF .deps/vimagemodule.Tpo -c vimagemodule.cxx -o vimagemodule.o >/dev/null 2>&1 g++ -shared -nostdlib /usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/crti.o /usr/lib/gcc/x86_64-linux-gnu/4.4.3/crtbeginS.o .libs/vimagemodule.o -Wl,-rpath -Wl,/home/john/SVN/vips/vips7/trunk/libvipsCC/.libs -Wl,-rpath -Wl,/home/john/SVN/vips/vips7/trunk/libvips/.libs -Wl,-rpath -Wl,/home/john/vips/lib ../../libvipsCC/.libs/libvipsCC.so ../../libvips/.libs/libvips.so /usr/lib/libMagickWand.so /usr/lib/libMagickCore.so -lpng12 /usr/lib/libtiff.so /usr/lib/libjpeg.so /usr/lib/libxml2.so /usr/lib/libpangoft2-1.0.so /usr/lib/libpango-1.0.so /usr/lib/libfreetype.so -lfontconfig /usr/lib/libgobject-2.0.so /usr/lib/libgmodule-2.0.so /usr/lib/libgthread-2.0.so -lrt /usr/lib/libglib-2.0.so /usr/lib/libfftw3.so /usr/lib/liblcms.so /usr/lib/libIlmImf.so -lImath -lHalf -lIex -lIlmThread /usr/lib/libmatio.so -lz /usr/lib/libexif.so -L/usr/lib/gcc/x86_64-linux-gnu/4.4.3 -L/usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib -L/lib/../lib -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../.. -L/usr/lib/x86_64-linux-gnu -lstdc++ -lm -lc -lgcc_s /usr/lib/gcc/x86_64-linux-gnu/4.4.3/crtendS.o /usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/crtn.o -pthread -Wl,--export-dynamic -pthread -pthread -pthread -pthread -Wl,-soname -Wl,vimagemodule.so -o .libs/vimagemodule.so - convert_saveable for other writers: tiff, ppm, csv, rad etc. - the tiff writer could use more im_check_ things - expose more of the tone funcs in nip2 - quite a few hist operations have no GUI ... lhisteq, for example? or histspec? - added im_local_imask(), im_local_dmask(), needs docs? I guess when mask/* gets docs - im_rotate_imask90 only works for square, odd-sized masks, argh just use im_rot90? have a small wrapper to let you use image functions on masks - lots of stupid little files in hist, eg. im_hsp.c ... paste them into larger modules - try writing docs for vipsthumbnail with gtkdoc? then try header etc. we need to have a separate docs package for the tools/ dir - rename header, edvips as vipsheader, vipsedit maybe have back compat links? - should im_rwcheck() copy to disc? maybe im_rwcheck_disc() copies to im->filename and maps that rather awkward to do atm with the way check.c is structured - what does G_UNLIKELY() do? can we use it? - rename vipsCC in SWIG as pyvips? - look into G_GNUC_DEPRECATED for back compat in vips8 - use http://library.gnome.org/devel/glib/stable/glib-Byte-Order-Macros.html for swapping ... they are asm macros so we should see a speedup - can we use conv_sep to speed up the memuse benchmarks? - move im_shrink & friends to resample? match_linear, match_linear_search? what about im_stretch3.c, im_resize_linear - check mosaic1, global_balance, similarity etc. use of im__affine how can we move them to im_affinei ? - doc strings would be nice, read the SWIG notes on this - bilateral filtering, see: http://en.wikipedia.org/wiki/Bilateral_filter http://www.shellandslate.com/fastmedian.html also a mail from Martin Breidt has links to several fast free C implementations - try making vips_add(), an operator as a class - need a section for vipsobject in the tutorial also a manpage? not really stable yet :( don't document - how to expose things like snohalo1's "blur" parameter to C++/Python? can we write a find-by-nickname function? eg. GType vips_get_type (const char *base, const char *nickname) then vips_get_type ("VipsInterpolator", "bicubic") would get us the GType for VipsInterpolatorBicubic - we shouldn't need to call im_invalidate() in gtkdisp4 :( how can we fix this? - we should wrap the format API, also im_render*(), see gtkdisp.cc for sample code - have a base VObject class and put the ref stuff in there ... share between VMask, VDisplay, VImage - need an im_init_world() for C++ which does cmd-line args too, so C++ progs can get --vips-progress and stuff automatically - more cleanups to the handling of vips format images, esp. we have vips write spread across many files atm - could remove a lot of crappy old API - try libsrc/convolution$ grep -l offsets *.c could we do the don't calc offsets thing unless bpl; changes thing in more places? - unsharp should work on GREY16? should be easy to add GREY16->LABS no, labs is signed short, ranges are all differrent, and the scaling will be wrong anyway correct: import with ICC to labs, then process, then export to RGB, take green? yuk, can we add a 16bit path to vips's lab <--> rgb converter? use TIFF RGB16 as the 16bit RGB target im_XYZ2disp() would be easy to 16bit ... just need the 1,500 element table table->t_Yr2r[i] expanded im_disp2XYZ() uses im_col_rgb2XYZ() in a loop ... again, need the 1,500 element table table->t_r2Yr[i] expanded usually these three tables (t_r2Yr, t_g2Yg, t_b2Yb) will be identical, can we common them up? same for t_Yr2r etc. how big should the table be for 16 bits? 256 times larger? too big! we really just need a LUT for pow() with the right exponent, eg. 2.4 for sRGBs, and one for 1/2.4 ... see what calcul_tables does: table->t_r2Yr[i] = yo + a * pow( i * table->ristep / f + c, ga ); see - test maxpos_avg, quite a few changes - HAVE_HYPOT could define a hypot() macro? - im_exr2vips can now use c++ api see TODO notes in openexr read (though they all need more openexr C API) consider openexr write - python startup fails with plugins in vipslib: Fatal Python error: can't initialise module vips plugin: unable to open plugin "/home/john/vips/lib/resample.plg" plugin: /home/john/vips/lib/resample.plg: undefined symbol: im_start_one do we need to build plugins with -rpath etc. and more libs? or do we need to make sure our python modules export all their im_ symbols? check: http://www.swig.org/Doc1.3/SWIGDocumentation.html#Python_nn8 http://docs.python.org/dist/dist.html - write our own python extension to call a vips operation by name result = vips_call ("name", args) then call that from VImage_method - do we really need VImage_method? Can't we write __getattr__ (self, name) = lambda (obj_to_call, arguments): or something like that? - TIFF load/save should use meta system for unknown tags - balance should use new meta stuff - magick2vips should spot ICC profiles and attach them as meta - also png2vips? - magick should set some header field for n_frames and frame_height? see also analyze - im_csv2vips() could use "-" for filename to mean stdin but then we'd have to read to a malloced buffer of some sort rather than an image, since we might need to grow it during the read, since we couldn't then seek - add erode/dilate 3x3 special case using a 512-bit LUT ... nope, actually slower :-( we end up doing an inner loop like for( i = 0; i < 9; i++ ) bits |= (p[o[i]] != 0) << i; which is horrible. Maybe if we had a one band true 1 bit image it'd be quicker since we could get bits out in parallel and wouldn't have to worry about converting non-zero to 1 could have a Coding type for bitpack? eg. relational produces a bitpack image by default, boolean & morph can work on bitpack etc maybe something for vips8 ... we could have a flag on operations for the coding types they can accept, and if they are passed other type, they are automatically converted - non-linear sharpen: replace each pixel by the lightest or darkest neighbour depending on which is closer in value - can wrap other inplace funcs which use ink now we have vector_to_ink() in inplace_dispatch.c see also comments in nip2 TODO ... we could auto-wrap in vips_call.c cleaner!