- don't do vips_image_write() at the end of a pipeline, instead try: g_object_set( object, "output", t ); ie. replace the output object in cache.c, we must not include the hash of the output objects, I guess we don't - vipsimage should be cached too, eg. VipsImage *a = vips_image_new_from_file( "poop.jpg" ); can be reused - bandalike: consider RGB + RGBA ... we should bandup by adding a black band (or white?? unclear) not clear if this is a good idea ... eg. when we upband a 1 band to a 2 band, should we duplicate the 1 band or add black? - note member free stuff in vipsobject docs should boxed get freed in finalise rather than dispose? - we have this is many places: if( vips_image_copy_fieldsv( conversion->output, insert->main, insert->sub, NULL ) ) return( -1 ); vips_demand_hint( conversion->output, VIPS_DEMAND_STYLE_THINSTRIP, insert->main, insert->sub, NULL ); why not combine these into a single API call? use array version in several places - we have some serious exif problems we attach exif as both the original exif data and as a set of broken-out tags, such as 'exif-Orientation' ... the tags are attached as strings when we write a jpg file, we parse the original exif block, update the resolution and Orientation tags from metadata, and add to the output file we need a way to update the exif block with all 'exif-' tags, but this is hard because a tag is tag format (eg. short, rational, string) components (for short, for example, you can have an array of 12) data (byte buffer) size (sizeof byte buffer) many tags have extra meanings, for example Orientation means that the format must be short and the data must be 1, 2, 3, 4, 5, 6, 7 or 8 for the 8 possible rotates and flips ... libexif does not expose any way to convert strings to enum values safely, what do we do with "Bottom-right" how do we expose this to bindings in a sane way, how do we accurately convert the updated tag values back into correct exif when we reattach additionally, exif tags can be in one of several ifd blocks, do we need to add the tag to the correct block? how do we save that information? oo! we have the original, of course to reattach, get the entry from the original exif block, get the updated tag, coerce the updated value back to the orginal format save exif entries to tags as something like: exif-Orientation: 1 (Top-left, Short, 1 component, 2 bytes) so we can restore the value from the "1" without needding to look up i18n strings - vips_object_set_argument_from_string() needs more arg types must be some way to make this more automatic - add nifti support http://niftilib.sourceforge.net/ - add vips_init_argv() which processes argc/argv for you? handy for tiny progs, perhaps - generate the code for vips_add() etc. automatically? it might be nice to have them all in one place at least - all the old dispatch wrappers could move to deprecated - support planar tiff - vips operation print could show operation flags as well, cf. "vips im_subtract" haha, we don't have any flags like that on operation ... NOCACHE looks useful, should we add that? any others? maybe wait until we have to - revisit orc conv use an 8.8 accumulator ... build the scale into the 8.8 coeffs ... no div at the end, just a shift need 8 x 8.8 -> 8.8 for each coeff though - also VipsFormat ... could this replace vips_image_new_from_string()? or could we call this from vips_image_new_from_string()? at the moment, VipsFormat subclasses never get made, we just use the classes ... we'd need to start making real vipsformat objects for this to work how would this work? at the moment we have image = vips_image_new_from_file( filename ); build a VipsImage with filename "r" we also have the new CLI thing obj = vips_object_new_from_string( class, str ); calls class->new_from_string( first-component(str) ), then sets optional args from rest-of-str(str), then does _build() image-class->new_from_string() just make a vipsimage "r" str the _build() uses VipsFormat() to load via im_tiff2vips() or whatever so ... we could change vips_image_new_from_file() to be VIPS_IMAGE( vips_object_new_from_string( VipsImageClass, str ) ) we could also make VipsImage::new_from_string() make a real VipsFormat object, then load options could be set from the str how does save work? we call image-class->output_to_arg(obj, str), which in turn calls vips_image_write(), which in turn uses VipsFormat - make a vips8 binding for Python as well use ctypes and not swig so we get an easy Win version wrap new API for C++ - Magick: - do we bundle "convert" in the OS X / win32 builds? if we don't we should - need vips_image_invalidate_area() - add matlab write - need a way to make the vips.1 etc. man pages gtk has things like docs/reference/gtk/gtk-update-icon-cache.xml and man pages are made from that with xslt - get rid of a lot of the command-line programs, who wants to write a man page for batch_image_convert etc yuk - can we make man pages for the API as well? probably not from googling a bit - use g_mmap() or whatever it's called ... or perhaps they don't have all these options - use |_O_TEMPORARY to open()'s mode on Windows for tmpfiles to increase the chances we actually delete see http://www.mail-archive.com/bug-gnulib@gnu.org/msg05730.html - lab [100,0,0] -> srgb [255, 255, 254]? how odd - im_conv()/im_morph() could have more than 10 programs? try 20 and see if we still have a speedup make a base class for vector area operations with a matrix with three vfuncs for init / generate code for one element / end and a gslist of programs, use that as the base for morph and conv wait for vipsobject for this - perspective transform with a matrix ... base it on the Lenz transformer, but partial - maybe im_draw_smudge() is too slow :-( also, we had a sanity failure with it, argh make a region, prepare to that, copy back over the image? - use D65 in cmsCreateLab4Profile() ? not sure - im_divide() can /0 for complex - unlink temps earlier on *nix systems the file is created by setupout, which is called just before generate or writeline, so perhaps unlink on evalstart? no, on a rewind we need to be able to close and reopen, argh - test python setup.py build_ext python setup.py build python setup.py install >>> 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: 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. - expose more of the tone funcs in nip2 - quite a few hist operations have no GUI ... lhisteq, for example? or histspec? - 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? - 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 http://people.csail.mit.edu/sparis/bf_course/ also a mail from Martin Breidt has links to several fast free C implementations - need a section for vipsobject in the tutorial also a manpage? not really stable yet :( don't document - 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 - need an im_init_world() for C++ which does cmd-line args too, so C++ progs can get --vips-progress and stuff automatically - 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 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!