January 2009 - Olena-patches

[Olena] #179: Float precision issues with epsilon
by Olena 13 Jul '09

13 Jul '09

#179: Float precision issues with epsilon ---------------------+------------------------------------------------------ Reporter: lazzara | Owner: Olena Team Type: defect | Status: new Priority: major | Milestone: Olena 1.0 Component: Milena | Version: 1.0 Keywords: | ---------------------+------------------------------------------------------ In level::stretch, we use float variables to do the following: {{{ float epsilon = mln_epsilon(float), M = mln_max(V) + 0.5f - epsilon, m = 0.0f - 0.5f + epsilon; }}} 'm' is precise enough since it is a really low value. However, M is not precise enough since mln_max(V) may be a high value, so we will loose decimal precision if we store that number as float. As a result, M is always equal to 'mln_max(V) + 0.5' which introduce a bug in level::stretch. This issue can be avoided by using double variables instead, but do we really want that? Don't we want to handle that issue in a more generic way? -- Ticket URL: <https://trac.lrde.org/olena/ticket/179> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.

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[Olena] #165: Separate sites sets from their psites?
by Olena 13 Jul '09

13 Jul '09

#165: Separate sites sets from their psites? ----------------------+----------------------------------------------------- Reporter: levill_r | Owner: Olena Team Type: proposal | Status: new Priority: major | Milestone: Olena 1.0 Component: Milena | Version: 1.0 Keywords: | ----------------------+----------------------------------------------------- Many files containing the definitions site sets, located in source:branches/cleanup-2008/milena/mln/core/site_set/, include the related psite and piters. Split them into several files? (And add convenience headers including all of them?) -- Ticket URL: <https://trac.lrde.org/olena/ticket/165> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.

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[Olena] #155: Reuse existing script to factor the Makefile machinery in Swilena
by Olena 10 Jun '09

10 Jun '09

#155: Reuse existing script to factor the Makefile machinery in Swilena -------------------------+-------------------------------------------------- Reporter: levill_r | Owner: levill_r Type: enhancement | Status: new Priority: minor | Milestone: Olena 1.0 Component: Swilena | Version: 1.0 Keywords: | -------------------------+-------------------------------------------------- For instance, there are parts to be factored in source:trunk/swilena/python/Makefile.am. See what TC, Olena 0.11 and clspr used. -- Ticket URL: <https://trac.lrde.org/olena/ticket/155> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.

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[Olena] #156: Kill a maximum of warnings in Swilena
by Olena 10 Jun '09

10 Jun '09

#156: Kill a maximum of warnings in Swilena -------------------------+-------------------------------------------------- Reporter: levill_r | Owner: levill_r Type: enhancement | Status: new Priority: minor | Milestone: Olena 1.0 Component: Milena | Version: 1.0 Keywords: | -------------------------+-------------------------------------------------- The Python wrappers have been written quickly, and they lack some information (base classes, etc.), making `swig` emit a lot of warnings. Most of them are harmless, however they clutter the output of the build. Get rid of them. -- Ticket URL: <https://trac.lrde.org/olena/ticket/156> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.

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[Olena] #128: Handle carefully tests using X11
by Olena 10 Jun '09

10 Jun '09

#128: Handle carefully tests using X11 ----------------------+----------------------------------------------------- Reporter: levill_r | Owner: Olena Team Type: defect | Status: new Priority: major | Milestone: Olena 1.0ß Component: Milena | Version: 1.0 Keywords: test | ----------------------+----------------------------------------------------- Some tests require X11 visualization programs such as `display` (from !ImageMagick) or `xv`. This is an issue since * the they might not be installed on the machine; * the host/session on which tests are executed might not run a X11 display. IMHO, we could either 1. move them out of the `check` target (and have them launched by the `check-all`/`check-full` target, or a check-x11 target); or 2. have `configure` check whether the required programs are present, as well as a (usable) X11 session. (Maybe the Vaucanson Team ran into such questions; ask them.) -- Ticket URL: <https://trac.lrde.org/olena/ticket/128> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image library.

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[Olena] #125: Ambiguity in comparaison with literals
by Olena 09 Jun '09

09 Jun '09

#125: Ambiguity in comparaison with literals --------------------------------+------------------------------------------- Reporter: garrigues | Owner: theo Type: defect | Status: new Priority: major | Milestone: Olena 1.0ß Component: Milena | Version: 1.0 Keywords: literals operators | --------------------------------+------------------------------------------- This test shows the problem : {{{ #!cpp # include <mln/value/gl8.hh> # include <mln/literal/all.hh> int main() { using mln::value::gl8; using mln::literal::white; gl8 b; b == white; } }}} The compiler can't find the right operator== to compate graylevel with literals. Here is the error output : {{{ test.cc: In function 'int main()': test.cc:11: error: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: ../../mln/literal/ops.hh:252: note: candidate 1: typename mln::trait::op::eq<O, O>::ret mln::operator==(const mln::Object<E>&, const mln::Literal<L>&) [with O = mln::value::graylevel<8u>, L = mln::literal::white_t] ../../mln/value/internal/gray_f.hh:317: note: candidate 2: bool mln::value::operator==(const mln::value::Integer<I>&, const mln::value::graylevel_f&) [with I = mln::value::graylevel<8u>] }}} -- Ticket URL: <https://trac.lrde.epita.fr/olena/ticket/125> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image library.

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[Olena] #163: Decide into what mln_?iter(T) should expand
by Olena 09 Jun '09

09 Jun '09

#163: Decide into what mln_?iter(T) should expand ---------------------------------+------------------------------------------ Reporter: levill_r | Owner: Olena Team Type: proposal | Status: new Priority: minor | Milestone: Olena 1.0 Component: Milena | Version: 1.0 Keywords: convention shortcut | ---------------------------------+------------------------------------------ In source:trunk/milena/mln/core/macros.hh, the macros {{{ #!cpp mln_?iter(T) mln_?iter_(T) }}} expand as {{{ #!cpp typename T::fwd_?iter T::fwd_?iter }}} Shouldn't they expand as {{{ #!cpp typename T::?iter T::?iter }}} ? -- Ticket URL: <https://trac.lrde.org/olena/ticket/163> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.

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[Olena] #157: Improve depency tracking in Swilena
by Olena 09 Jun '09

09 Jun '09

#157: Improve depency tracking in Swilena -------------------------+-------------------------------------------------- Reporter: levill_r | Owner: Olena Team Type: enhancement | Status: new Priority: minor | Milestone: Olena 1.0 Component: Swilena | Version: 1.0 Keywords: | -------------------------+-------------------------------------------------- Our hand-made build system does not seem to track dependencies very well in Swilena/Python. Improve this. -- Ticket URL: <https://trac.lrde.org/olena/ticket/157> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.

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[Olena] #180: algebra::vec's != operators cannot be used.
by Olena 08 Jun '09

08 Jun '09

#180: algebra::vec's != operators cannot be used. ---------------------+------------------------------------------------------ Reporter: lazzara | Owner: Olena Team Type: defect | Status: new Priority: major | Milestone: Olena 1.0 Component: Milena | Version: 1.0 Keywords: | ---------------------+------------------------------------------------------ The following example does not compile. test.cc: {{{ # include <mln/algebra/vec.hh> int main() { using namespace mln::algebra; vec<3, float> a, b; bool c = (a != b); } }}} g++ -I. test.cc {{{ test.cc: In function 'int main()': test.cc:6: error: cannot convert 'mln::algebra::vec<3u, bool>' to 'bool' in initialization ./mln/core/routine/ops.hh: In function 'typename mln::trait::op::neq<L, R>::ret mln::operator!=(const mln::Object<E>&, const mln::Object<O2>&) [with O1 = mln::algebra::vec<3u, float>, O2 = mln::algebra::vec<3u, float>]': test.cc:6: instantiated from here ./mln/core/routine/ops.hh:528: error: conversion from 'bool' to non-scalar type 'mln::algebra::vec<3u, bool>' requested }}} Note that if '(a != b)' is replaced by '(a == b)' or '!(a == b)', this example compiles. -- Ticket URL: <https://trac.lrde.org/olena/ticket/180> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.

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[Olena] #144: Fix load (and maybe save) routine(s) for ASCII-encoded PBM images
by Olena 29 May '09

29 May '09

#144: Fix load (and maybe save) routine(s) for ASCII-encoded PBM images -------------------------------------+-------------------------------------- Reporter: levill_r | Owner: Olena Team Type: defect | Status: new Priority: critical | Milestone: Olena 1.0 Component: Milena | Version: 1.0 Keywords: I/O IO input output pbm | -------------------------------------+-------------------------------------- Théo discovered on May 28, 2008 that the load routine for ASCII-encoded PBM (boolean) images was broken (and maybe the save routine, too). The other ASCII-based Netpbm should be checked as well. Don't close this ticket until all of these routine have been inspected and declared safe! -- Ticket URL: <https://trac.lrde.org/olena/ticket/144> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.

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