276 Commits
Author SHA1 Message Date
Vincent Rabaud 32b08d2b9e Remove references to C++ < 17 and older compiler versions.
According to https://github.com/opencv/opencv/wiki/OpenCV-4-to-5-migration#1-build-requirements
are not supported:
- GCC < 7
- clang < 9
- MSVC < 2017 (19.14)
2026-09-24 11:02:15 +02:00
Alexander Smorkalov 18b9bc30a4 Merge pull request #29758 from seanm:Wfloat-conversion
Fixed Clang -Wfloat-conversion warning in public header
2026-08-25 14:05:41 +03:00
Sean McBride f236c17169 Fixed Clang -Wfloat-conversion warning in public header
It was warning:

Implicit conversion turns floating-point number into integer: 'float' to 'unsigned int'

when assigning to `worst_score`.

Looks to me like `worst_score` is actually being given the wrong type, and that it should have the same type as `hamming_distance`, which is `DistanceType`.

It order to test, fixed a few adjacent -Wfloat-conversion warnings in translation units that use lsh_index.h.
2026-08-24 11:27:12 -04:00
Vincent Rabaud 2666516a44 Fix kd-tree on empty data 2026-08-21 23:40:48 +02:00
Sean McBride 948c1be9b3 Fixed numerous Clang -Wextra-semi warnings 2026-08-19 18:32:08 -04:00
Alexander Smorkalov 112959651a Merge pull request #29478 from vrabaud:persistence2
Fix case for intrin.h
2026-07-09 16:24:36 +03:00
Vincent Rabaud 71d900dc36 Fix case for intrin.h
This is similar to: https://github.com/opencv/opencv/pull/28754
2026-07-09 01:17:15 +02:00
Ijtihed Kilani fbd4dc6ca0 flann: use per-thread storage for heap pool to remove lock contention 2026-06-25 21:18:59 +03:00
Pierre Chatelier 6eb0dc97f5 Merge pull request #28907 from chacha21:more_autobuffer
More use of AutoBuffer #28907

When possible, AutoBuffer should be faster than std::vector<>, and should not be worse if it requires a heap allocation rather than a stack allocation.

### Pull Request Readiness Checklist

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- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [X] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
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      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
2026-06-16 18:51:37 +03:00
Kumataro b201d6e631 Merge pull request #28903 from Kumataro:supportDoxygen1_15_0
doc: modernize Doxygen comments to support for v1.15.0 #28903

This PR addresses several documentation build failures encountered with modern Doxygen versions, particularly v1.15.0 (shipped with Ubuntu 26.04).

- flann module: Updated license headers from /**** to /*M****. This prevents Doxygen from misinterpreting the license text (specifically the unclosed backticks in ``AS IS'') as documentation blocks, which previously caused "Reached end of file" errors.
- core module: Fixed a typo in operations.hpp where a doubled backtick (``) caused parsing to fail.
- tutorials: Fixed a missing backtick in real_time_pose.markdown (around line 108) and corrected typos in the RobustMatcher class name.
- Links: Resolved explicit link request failures in calib3d.hpp by ensuring proper namespace resolution.

These fixes ensure that the documentation can be generated without errors on the latest toolchains.

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
2026-04-29 10:47:53 +03:00
hyndhavamahesh345 1194bd24cb docs: fix typos and missing parameter description in flann and calib3d 2026-02-22 14:11:17 +05:30
Vincent Rabaud feee8b202d Help compiler vectorize loops in meanSplit
Otherwise, it does not know dataset_, mean_ and var_ do not
overlap.
2026-02-16 13:30:43 +01:00
Vincent Rabaud 5622958189 Replace pow with std::pow
The C pow casts to double while std::pow has overloads that can be
optimized by the compiler.
Also replace pow(*, 1./3) by cbrt.
2026-01-04 15:12:59 +01:00
Kumataro 98a70539cc Merge pull request #27730 from Kumataro:fix27729
doc: fix doxygen warnings for imgcodecs, flann and objdetect #27730

Close https://github.com/opencv/opencv/issues/27729

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
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2025-09-08 10:35:01 +03:00
sight 37a3eddd53 Fix float-conversion warnings in FLANN by using float literals 2025-06-17 09:59:44 +00:00
Kumataro 1f674dcdb4 Merge pull request #27416 from Kumataro:fix27413
Close https://github.com/opencv/opencv/issues/27413

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
2025-06-12 15:32:28 +03:00
Maksim Shabunin b7e609d5e8 flann: remove unused hdf5 header 2024-11-14 19:44:10 +03:00
Vincent Rabaud 7e3f6875c1 Prevent signed integer overflow in LshTable
This change keeps everything as size_t and the expression is valid
because maxk_block > 0 in hte loop.
2024-05-24 23:47:36 +02:00
Vincent Rabaud f8aa2896a1 Merge pull request #25024 from vrabaud:neon
Replace legacy __ARM_NEON__ by __ARM_NEON #25024

Even ACLE 1.1 referes to __ARM_NEON
https://developer.arm.com/documentation/ihi0053/b/?lang=en

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
2024-02-20 11:29:23 +03:00
Yannis Guyon fefd2e5ce6 Remove 3 hidden leading chars in flann/dist.h
/**** is EF BB BF 2F 2A 2A 2A 2A instead of 2F 2A 2A 2A 2A.
2024-02-14 11:43:52 +01:00
Sean McBrideandAlexander Smorkalov 5fb3869775 Merge pull request #23109 from seanm:misc-warnings
* Fixed clang -Wnewline-eof warnings
* Fixed all trivial clang -Wextra-semi and -Wc++98-compat-extra-semi warnings
* Removed trailing semi from various macros
* Fixed various -Wunused-macros warnings
* Fixed some trivial -Wdocumentation warnings
* Fixed some -Wdocumentation-deprecated-sync warnings
* Fixed incorrect indentation
* Suppressed some clang warnings in 3rd party code
* Fixed QRCodeEncoder::Params documentation.

---------

Co-authored-by: Alexander Smorkalov <alexander.smorkalov@xperience.ai>
2023-10-06 13:33:21 +03:00
Vadim Levin e3cb5f80e7 Merge pull request #24028 from VadimLevin:dev/vlevin/fix-flann-python-bindings
Fix FLANN python bindings #24028

As a side-effect this patch improves reporting errors by FLANN `get_param`.

resolves #21642

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake
2023-07-21 12:44:56 +03:00
Alexander Smorkalov e4a29d93fe Merge remote-tracking branch 'origin/3.4' into merge-3.4 2023-04-21 10:55:04 +03:00
Vladimir Ponomarev b204c39815 Merge pull request #23276 from vovka643:flann_corrections
Fixed potential memory leak in flann

Issue #22426

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake
2023-03-14 15:00:44 +03:00
Alexander Smorkalov 3d635cb4a7 Warning supression fix for XCode 13.1 and newer. Backport #23203 2023-02-06 11:12:05 +03:00
Alexander Alekhin 583bd1a6e2 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2022-06-04 19:10:35 +00:00
mohawk2 72debee125 typo: Minkowsky is actually Minkowski 2022-05-26 12:54:26 +01:00
Kumataro 602caa9cd6 Merge pull request #21937 from Kumataro:4.x-fix-21911
* Fix warnings for clang15

* Fix warnings: Remove unnecessary code

* Fix warnings: Remove unnecessary code
2022-05-13 17:32:05 +00:00
Alexander Alekhin 8b4fa2605e Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-12-03 12:32:49 +00:00
yuki takehara a6277370ca Merge pull request #21107 from take1014:remove_assert_21038
resolves #21038

* remove C assert

* revert C header

* fix several points in review

* fix test_ds.cpp
2021-11-27 18:34:52 +00:00
Hamdi Sahloul 7c73e28a6d Improves FLANN's heap allocations by a memory pool 2021-08-11 17:34:15 +09:00
Alexander Alekhin 7d66f1e391 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2021-05-18 18:06:26 +00:00
Jake Staahl 158b13e0ba Remove static initializers caused by templated static member. 2021-05-07 12:53:14 -07:00
Alexander Alekhin 6659d55a9d Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2020-12-20 18:40:22 +00:00
Vincent Rabaud ff211371bc Replace FLANNException by CV_Error. 2020-12-20 14:17:28 +01:00
Alexander Alekhin a04479746a Merge pull request #19045 from alalek:issue_17553
* flann: avoid dangling pointers on lost features data

* flann: fix Index::load()
2020-12-11 19:09:35 +00:00
Alexander Alekhin 7eaa548b6d flann: drop wrapping of Index class
- due to lifetime restrictions on passed 'features' parameter and its dangling pointers
- dangling pointer issue is fixed for OpenCV 4.5.1+
2020-12-09 05:39:35 +00:00
Alexander Alekhin 5ae9892170 Merge pull request #18243 from alalek:static_code_fixes 2020-09-02 22:50:00 +00:00
Alexander Alekhin 1f2c83845d backport: checks and fixes from static code analyzers results
original commit: 71f665bd8c
2020-09-02 19:05:47 +00:00
Alexander Alekhin 71f665bd8c checks and fixes from static code analyzers results 2020-09-02 21:59:34 +03:00
Alexander Alekhin 0428dce27d Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2020-09-01 20:59:00 +00:00
pemmanuelviel 31dc3e9256 Merge pull request #18211 from pemmanuelviel:pev--handle-dna-vectors
* DNA-mode: update miniflann to handle DNA

* DNA-mode: update hierarchical kmeans to handle DNA sequences
2020-09-01 20:38:21 +00:00
Pierre-Emmanuel Viel 5376863c0c bugfix 2020-08-27 12:21:02 +02:00
Alexander Alekhin f6c2bf21c8 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2020-08-21 19:57:34 +00:00
Alexander Alekhin fc0f9da7a7 Merge pull request #18084 from pemmanuelviel:pev--add-DNA-distances 2020-08-20 13:26:02 +00:00
Alexander Alekhin b45273eccb Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2020-08-14 19:45:45 +00:00
Pierre-Emmanuel Viel 3f55152ca0 Add debug assert to check in FLANN the vectors size is multiple of the architecture word size 2020-08-12 23:07:35 +02:00
Pierre-Emmanuel Viel 98de57c6c4 Refactoring to prepare for other vector types while mutualizing some methods 2020-08-12 00:57:37 +02:00
Pierre-Emmanuel Viel 759c9522fd Merge the two KMeansIndexParams ctor on master 2020-08-09 21:56:21 +02:00
Alexander Alekhin fa25faa2d2 Merge remote-tracking branch 'upstream/3.4' into merge-3.4 2020-08-06 14:15:52 +00:00