Commit Graph

1207 Commits

Author SHA1 Message Date
catree
a891caa755 Use directly the doxygen snippet command for the Changing the contrast and brightness of an image tutorial. Extend the tutorial with a pratical example and with a gamma correction method to adjust the brightness of an image. 2017-01-05 18:31:03 +01:00
Lorena García
3650ec02be HitMiss tutorial 2017-01-03 18:34:04 +01:00
LaurentBerger
a2f3692bff Merge branch 'master' of git://github.com/Opencv/opencv into UserColormap 2016-12-26 17:03:52 +01:00
Vadim Pisarevsky
75eeb25c1e Merge pull request #7866 from alalek:update_waitKey 2016-12-16 12:25:11 +00:00
LaurentBerger
8415b907bb warnings 2 2016-12-16 09:23:21 +01:00
LaurentBerger
f92c9ddb43 warning 2 2016-12-16 09:09:39 +01:00
LaurentBerger
1f724e2e8a warnings 2016-12-16 08:33:31 +01:00
LaurentBerger
5ad02d7a9a Add sample 2016-12-15 22:55:59 +01:00
StevenPuttemans
6d34d6b47e update samples: waitKey() usage
Original commit is a5f19f7dd6
2016-12-15 15:39:47 +03:00
Cartucho
fcddfa4f86 GSoC 2016 - Adding ALIASES for tutorial (#7041)
* GSoC 2016 - Adding toggle files to be used by tutorials.

Add a toggle option for tutorials.
* adds a button on the HTML tutorial pages to switch between blocks
* the default option is for languages: one can write a block
for C++ and another one for Python without re-writing the tutorial

Add aliases to the doxyfile.
* adding alises to make a link to previous and next tutorial.
* adding alias to specify the toggle options in the tutorials index.
* adding alias to add a youtube video directly from link.

Add a sample tutorial (mat_mask_opertaions) using the developed aliases:
* youtube alias
* previous and next tutorial alias
* buttons
* languages info for tutorial table of content
* code referances with snippets (and associated sample code files)

* Removing the automatic ordering.
Adding specific toggles for cpp, java and python.
Move all the code to the footer / header and Doxyfile.
Updating documentation.
2016-12-15 15:32:12 +03:00
LaurentBerger
fb456eb69c Merge pull request #7691 from LaurentBerger:I7676
* Solve issue 7676

* I7676 bis
2016-11-21 04:28:59 +03:00
Vadim Pisarevsky
050731c4d2 Merge pull request #7552 from es0m:master 2016-11-02 12:12:09 +00:00
Eric Sommerlade
752b10e410 fixed _MSC_VER check for at least vs2013 in dbt_face_detection sample 2016-10-31 13:48:41 +00:00
Eric Sommerlade
72e4e9d43d fixed _MSC_VER check for vs2013 in dbt_face_detection sample 2016-10-31 13:46:22 +00:00
Eric Sommerlade
049a894986 fixed detection_based_tracker on visual studio 2013 and later
modules/objectdetect/src/detection_based_tracker.cpp: made unique_lock<mutex> local to each function
samples/cpp/dbt_face_detection.cpp: fixed warnings on loop in Visual Studio
2016-10-31 11:07:09 +00:00
StevenPuttemans
5728f796f6 updating python tutorials + providing necessary data 2016-10-26 13:14:20 +02:00
Jiri Horner
c17afe0fab Merge pull request #6933 from hrnr:gsoc_all
[GSOC] New camera model for stitching pipeline

* implement estimateAffine2D

estimates affine transformation using robust RANSAC method.

* uses RANSAC framework in calib3d
* includes accuracy test
* uses SVD decomposition for solving 3 point equation

* implement estimateAffinePartial2D

estimates limited affine transformation

* includes accuracy test

* stitching: add affine matcher

initial version of matcher that estimates affine transformation

* stitching: added affine transform estimator

initial version of estimator that simply chain transformations in homogeneous coordinates

* calib3d: rename estimateAffine3D test

test Calib3d_EstimateAffineTransform rename to Calib3d_EstimateAffine3D. This is more descriptive and prevents confusion with estimateAffine2D tests.

* added perf test for estimateAffine functions

tests both estimateAffine2D and estimateAffinePartial2D

* calib3d: compare error in square in estimateAffine2D

* incorporates fix from #6768

* rerun affine estimation on inliers

* stitching: new API for parallel feature finding

due to ABI breakage new functionality is added to `FeaturesFinder2`, `SurfFeaturesFinder2` and `OrbFeaturesFinder2`

* stitching: add tests for parallel feature find API

* perf test (about linear speed up)
* accuracy test compares results with serial version

* stitching: use dynamic_cast to overcome ABI issues

adding parallel API to FeaturesFinder breaks ABI. This commit uses dynamic_cast and hardcodes thread-safe finders to avoid breaking ABI.

This should be replaced by proper method similar to FeaturesMatcher on next ABI break.

* use estimateAffinePartial2D in AffineBestOf2NearestMatcher

* add constructor to AffineBestOf2NearestMatcher

* allows to choose between full affine transform and partial affine transform. Other params are the as for BestOf2NearestMatcher
* added protected field

* samples: stitching_detailed support affine estimator and matcher

* added new flags to choose matcher and estimator

* stitching: rework affine matcher

represent transformation in homogeneous coordinates

affine matcher: remove duplicite code
rework flow to get rid of duplicite code

affine matcher: do not center points to (0, 0)
it is not needed for affine model. it should not affect estimation in any way.

affine matcher: remove unneeded cv namespacing

* stitching: add stub bundle adjuster

* adds stub bundle adjuster that does nothing
* can be used in place of standard bundle adjusters to omit bundle adjusting step

* samples: stitching detailed, support no budle adjust

* uses new NoBundleAdjuster

* added affine warper

* uses R to get whole affine transformation and propagates rotation and translation to plane warper

* add affine warper factory class

* affine warper: compensate transformation

* samples: stitching_detailed add support for affine warper

* add Stitcher::create method

this method follows similar constructor methods and returns smart pointer. This allows constructing Stitcher according to OpenCV guidelines.

* supports multiple stitcher configurations (PANORAMA and SCANS) for convenient setup
* returns cv::Ptr

* stitcher: dynamicaly determine correct estimator

we need to use affine estimator for affine matcher

* preserves ABI (but add hints for ABI 4)
* uses dynamic_cast hack to inject correct estimator

* sample stitching: add support for multiple modes

shows how to use different configurations of stitcher easily (panorama stitching and scans affine model)

* stitcher: find features in parallel

use new FeatureFinder API to find features in parallel. Parallelized using TBB.

* stitching: disable parallel feature finding for OCL

it does not bring much speedup to run features finder in parallel when OpenCL is enabled, because finder needs to wait for OCL device.

Also, currently ORB is not thread-safe when OCL is enabled.

* stitching: move matcher tests

move matchers tests perf_stich.cpp -> perf_matchers.cpp

* stitching: add affine stiching integration test

test basic affine stitching (SCANS mode of stitcher) with images that have only translation between them

* enable surf for stitching tests

stitching.b12 test was failing with surf

investigated the issue, surf is producing good result. Transformation is only slightly different from ORB, so that resulting pano does not exactly match ORB's result. That caused sanity check to fail.

* added size checks similar to other tests
* sanity check will be applied only for ORB

* stitching: fix wrong estimator choice

if case was exactly wrong, estimators were chosen wrong

added logging for estimated transformation

* enable surf for matchers stitching tests

* enable SURF
* rework sanity checking. Check estimated transform instead of matches. Est. transform should be more stable and comparable between SURF and ORB.
* remove regression checking for VectorFeatures tests. It has a lot if data andtest is the same as previous except it test different vector size for performance, so sanity checking does not add any value here. Added basic sanity asserts instead.

* stitching tests: allow relative error for transform

* allows .01 relative error for estimated homography sanity check in stitching matchers tests
* fix VS warning

stitching tests: increase relative error

increase relative error to make it pass on all platforms (results are still good).

stitching test: allow bigger relative error

transformation can differ in small values (with small absolute difference, but large relative difference). transformation output still looks usable for all platforms. This difference affects only mac and windows, linux passes fine with small difference.

* stitching: add tests for affine matcher

uses s1, s2 images. added also new sanity data.

* stitching tests: use different data for matchers tests

this data should yeild more stable transformation (it has much more matches, especially for surf). Sanity data regenerated.

* stitching test: rework tests for matchers

* separated rotation and translations as they are different by scale.
* use appropriate absolute error for them separately. (relative error does not work for values near zero.)

* stitching: fix affine warper compensation

calculation of rotation and translation extracted for plane warper was wrong

* stitching test: enable surf for opencl integration tests

* enable SURF with correct guard (HAVE_OPENCV_XFEATURES2D)
* add OPENCL guard and correct namespace as usual for opencl tests

* stitching: add ocl accuracy test for affine warper

test consistent results with ocl on and off

* stitching: add affine warper ocl perf test

add affine warper to existing warper perf tests. Added new sanity data.

* stitching: do not overwrite inliers in affine matcher

* estimation is run second time on inliers only, inliers produces in second run will not be therefore correct for all matches

* calib3d: add Levenberg–Marquardt refining to estimateAffine2D* functions

this adds affine Levenberg–Marquardt refining to estimateAffine2D functions similar to what is done in findHomography.

implements Levenberg–Marquardt refinig for both full affine and partial affine transformations.

* stitching: remove reestimation step in affine matcher

reestimation step is not needed. estimateAffine2D* functions are running their own reestimation on inliers using the Levenberg-Marquardt algorithm, which is better than simply rerunning RANSAC on inliers.

* implement partial affine bundle adjuster

bundle adjuster that expect affine transform with 4DOF. Refines parameters for all cameras together.

stitching: fix bug in BundleAdjusterAffinePartial

* use the invers properly
* use static buffer for invers to speed it up

* samples: add affine bundle adjuster option to stitching_detailed

* add support for using affine bundle adjuster with 4DOF
* improve logging of initial intristics

* sttiching: add affine bundle adjuster test

* fix build warnings

* stitching: increase limit on sanity check

prevents spurious test failures on mac. values are still pretty fine.

* stitching: set affine bundle adjuster for SCANS mode

* fix bug with AffineBestOf2NearestMatcher (we want to select affine partial mode)
* select right bundle adjuster

* stitching: increase error bound for matcher tests

* this prevents failure on mac. tranformation is still ok.

* stitching: implement affine bundle adjuster

* implements affine bundle adjuster that is using full affine transform
* existing test case modified to test both affinePartial an full affine bundle adjuster

* add stitching tutorial

* show basic usage of stitching api (Stitcher class)

* stitching: add more integration test for affine stitching

* added new datasets to existing testcase
* removed unused include

* calib3d: move `haveCollinearPoints` to common header

* added comment to make that this also checks too close points

* calib3d: redone checkSubset for estimateAffine* callback

* use common function to check collinearity
* this also ensures that point will not be too close to each other

* calib3d: change estimateAffine* functions API

* more similar to `findHomography`, `findFundamentalMat`, `findEssentialMat` and similar
* follows standard recommended semantic INPUTS, OUTPUTS, FLAGS
* allows to disable refining
* supported LMEDS robust method (tests yet to come) along with RANSAC
* extended docs with some tips

* calib3d: rewrite estimateAffine2D test

* rewrite in googletest style
* parametrize to test both robust methods (RANSAC and LMEDS)
* get rid of boilerplate

* calib3d: rework estimateAffinePartial2D test

* rework in googletest style
* add testing for LMEDS

* calib3d: rework estimateAffine*2D perf test

* test for LMEDS speed
* test with/without Levenberg-Marquart
* remove sanity checking (this is covered by accuracy tests)

* calib3d: improve estimateAffine*2D tests

* test transformations in loop
* improves test by testing more potential transformations

* calib3d: rewrite kernels for estimateAffine*2D functions

* use analytical solution instead of SVD
* this version is faster especially for smaller amount of points

* calib3d: tune up perf of estimateAffine*2D functions

* avoid copying inliers
* avoid converting input points if not necessary
* check only `from` point for collinearity, as `to` does not affect stability of transform

* tutorials: add commands examples to stitching tutorials

* add some examples how to run stitcher sample code
* mention stitching_detailed.cpp

* calib3d: change computeError for estimateAffine*2D

* do error computing in floats instead of doubles

this have required precision + we were storing the result in float anyway. This make code faster and allows auto-vectorization by smart compilers.

* documentation: mention estimateAffine*2D function

* refer to new functions on appropriate places
* prefer estimateAffine*2D over estimateRigidTransform

* stitching: add camera models documentations

* mention camera models in module documentation to give user a better overview and reduce confusion
2016-10-22 19:10:42 +03:00
Alexander Alekhin
c31f89f0de viz: eliminate warnings from tutorial code 2016-10-21 18:33:40 +03:00
Alexander Alekhin
5da8d65371 eliminate compiler warnings 2016-10-08 02:19:43 +03:00
Maksim Shabunin
4e918fb987 Merge pull request #7165 from PkLab:doc_videoio 2016-09-09 18:01:41 +00:00
PkLab.net
be65701908 Large update of videoio doc and samples following mshabunin comments 2016-09-09 18:46:11 +02:00
catree
aaa335b617 Add the possibility to use a video stream with the peopledetect.cpp sample.
Fixed video input argument.
2016-09-04 19:50:36 +02:00
Maksim Shabunin
a278abdc76 Merge pull request #7140 from Asalle:fix-7136-Bounding_Box_explanation 2016-08-29 08:42:02 +00:00
Asal Mirzaieva
ec5ae4af1d add explanation to the Bounding Box and Circles tutorial
- also some minor changes to the respective sample cpp file
2016-08-26 18:23:32 +03:00
Vadim Pisarevsky
e00e8ebea9 Merge pull request #7149 from Cartucho:patch-1 2016-08-26 11:39:51 +00:00
Vadim Pisarevsky
4c75872e0f Merge pull request #6937 from catree:add_peopledetect_sample 2016-08-22 12:48:41 +00:00
Cartucho
d482b5c102 Update hull_demo.cpp
The Mat "src_copy" is never used.
2016-08-22 13:45:24 +02:00
Vadim Pisarevsky
2f069c108f Merge pull request #6945 from sturkmen72:update_documentation 2016-08-18 13:23:17 +00:00
Alexander Alekhin
89833fa073 Merge pull request #7095 from PkLab:fix_rho&phi_doc 2016-08-17 10:46:30 +00:00
PkLab.net
4b099e8ade Fix rho,phi exchange and amend linearPolar & logPolar docs with details and pics. 2016-08-16 12:49:33 +02:00
LaurentBerger
42b763e6b7 Canny with own gradient (#6664)
* example using the Canny algorithm with custom image gradient.

* Modified example to integrate new function canny with custom gradient
2016-08-16 10:51:09 +03:00
Suleyman TURKMEN
bb6f65c199 Update documentation ( tutorials ) 2016-08-15 17:23:04 +03:00
Maksim Shabunin
8e06ae2762 Merge pull request #7078 from mshabunin:pr6862 2016-08-11 08:56:07 +00:00
Vadim Pisarevsky
5eee757658 Merge pull request #6949 from wiryls:FileStorageBase64DocsTests 2016-08-10 09:26:13 +00:00
ggargov
83b36bfd79 Added comments to clarify sample code
Program flow is not easily apparent so hopefully ANY comments in the code could help new users.
2016-08-09 18:08:58 +03:00
Vladislav Sovrasov
46c8b09453 Improvements in camera_calibration tutorial code 2016-08-08 12:07:04 +03:00
MYLS
7429ed07be solve warnings in sample file 2016-07-30 02:05:15 +08:00
MYLS
3935855365 Merge remote-tracking branch 'refs/remotes/opencv/master' into FileStorageBase64DocsTests
# Conflicts:
#	modules/core/test/test_io.cpp
2016-07-30 01:08:27 +08:00
MYLS
08911cbfae change code to snippet and do some cleaning.
- use `@snippet` instead of `@code` in docs.
- remove some functions that were not used.
2016-07-30 00:35:41 +08:00
Alexander Alekhin
60676dbbe8 fix build: move LOG macro from stitching public headers 2016-07-20 18:10:26 +03:00
catree
42d5b1fb3b Re-add peopledetect.cpp sample. 2016-07-19 10:42:47 +02:00
Vadim Pisarevsky
ce05d6cb89 Merge pull request #6773 from acinader:add-mask-to-match-template-demo 2016-07-18 21:14:19 +00:00
Vadim Pisarevsky
d62b0bd363 Merge pull request #6849 from alcinos:optflow_interface 2016-07-18 15:05:13 +00:00
Alexander Alekhin
ddc0b42bc3 migration: github.com/opencv/opencv 2016-07-12 12:51:12 +03:00
Arthur Cinader
0ed250cb5d Implement PR feedback:
1. Explain grayscale input still read as three channel
2. Fix typo
3. Add more details to image match explanation to include the use of masks
2016-07-11 15:21:47 -04:00
LaurentBerger
62a87ce38c Issue 6780 2016-07-07 09:29:41 +02:00
Arthur Cinader
2b08f29543 Allow for an optional mask for MatchTemplate_Demo 2016-06-30 17:04:25 -07:00
Alexander Alekhin
8184535de1 samples: repair viz tutorial 2016-06-30 17:21:31 +03:00
Alexander Alekhin
b7735b3400 Merge pull request #6731 from jokereactive:viz_sample 2016-06-30 12:41:52 +00:00
Alexander Alekhin
69bd6dad1f Merge pull request #6029 from sturkmen72:patch-7 2016-06-29 11:55:09 +00:00
Dmitry Trifonov
f9e6741807 added support for OpenNI2 IR stream #4366 2016-06-27 10:04:59 -07:00
sarthak
43dca117b9 opencv viz bug
removed binary

update
2016-06-27 14:12:55 +05:30
Suleyman TURKMEN
11ca1c95f8 update cpp samples and tutorials 2016-06-26 20:55:00 +03:00
berak
a2b353d178 Update non_linear_svms.cpp
fix for #6598
2016-05-30 06:56:28 +02:00
CSBVision
d72625d506 neural_network.cpp added 2016-05-19 15:40:42 +02:00
Julien Nabet
a29c814bd8 cppcheck: fix some reports
All of these: (performance) Prefer prefix ++/-- operators for non-primitive types.
[modules/calib3d/src/fundam.cpp:1049] -> [modules/calib3d/src/fundam.cpp:1049]: (style) Same expression on both sides of '&&'.
2016-04-29 15:41:39 +02:00
Vadim Pisarevsky
5ed4e1b887 Merge pull request #6459 from eliao:Fix6457 2016-04-25 13:07:51 +00:00
Eric Liao
f87b175a19 Fix 6457
Allow configuration of the square size in stereo_calib.
2016-04-22 14:49:43 -07:00
Eric Liao
d3aaf8acf3 Change hardcoded relative path for instrinsics file to current path, matching the extrinsics file.
https://github.com/Itseez/opencv/issues/6456
2016-04-22 14:14:25 -07:00
Maksim Shabunin
ba3b1de93f Updates for XCode 7.3 2016-04-17 20:21:29 +03:00
Maksim Shabunin
fc5e32c7ac Merge pull request #6305 from rishirajsurti:master 2016-04-14 08:42:40 +00:00
rishirajsurti
4a9170ba42 Thresholding Tutorial using inRange function on a video 2016-04-14 11:55:52 +05:30
Maksim Shabunin
26416343c4 Merge pull request #6300 from berak:fix_akaze_sample 2016-03-21 14:01:17 +00:00
berak
e0c65499fd remove opencv_contrib dependancy from planar_tracking.cpp 2016-03-19 10:29:22 +01:00
Bleach666
93e50dabcd fix build detect_mser sample in vc2010 2016-03-16 16:51:20 +02:00
berak
79ac072e6c train_svmsgd.cpp : float response
responses must be float, else we trigger an assertion in line 150
2016-03-14 08:09:36 +01:00
Vadim Pisarevsky
fbc221d334 Merge pull request #6096 from mnoskova:mn/SVMSGD_to_opencv3_0 2016-03-12 17:16:35 +00:00
Alexander Alekhin
05a68fd82b Merge pull request #6118 from Emoters:hotfix/planar_tutorial_fixes 2016-03-03 17:24:08 +00:00
Marina Noskova
53711ec29d Deleted default value for parameters in docs.
Added some asserts.
2016-02-25 19:12:54 +03:00
Marina Noskova
74c87a26a5 Delete function areClassesEmpty(). 2016-02-25 15:31:07 +03:00
Marina Noskova
f3c4a6aab8 Rename parameters lambda, gamma0 and c. 2016-02-24 13:22:07 +03:00
Maksim Shabunin
8c29380471 Merge pull request #6105 from mshabunin:tutorial-folder-correction 2016-02-15 13:10:45 +00:00
Eric Zavesky
77fa8d9d5a - fix windows-based warnings for type casts 2016-02-15 05:37:54 -06:00
Marina Noskova
ff54952769 Corrected spelling mistakes 2016-02-15 14:35:36 +03:00
Eric Zavesky
335f7e7916 - trim whitespace, as required by build machine 2016-02-15 05:33:37 -06:00
Eric Zavesky
d7e57f2152 - fix typo from last minute change 2016-02-15 04:54:59 -06:00
Eric Zavesky
4c5af4f361 - add ROI selection, allow device input, use BB for area exclusion
- previously BB was ignored for first frame, now masks analysis area
  - also allow real-time feedback of processing
2016-02-15 04:27:28 -06:00
Eric Zavesky
4546139844 - remove zero threshold that prevents ORB from finding any local features 2016-02-15 04:26:03 -06:00
Maksim Shabunin
6c0c0466c6 Tutorials: moved Megamind.avi files to samples/data folder 2016-02-12 13:44:14 +03:00
Maksim Shabunin
359acc0d33 Tutorials: moved imgcodecs and videoio tutorials to separate pages 2016-02-12 13:35:46 +03:00
Marina Noskova
5496dedd6a Fixed warnings. 2016-02-10 19:46:24 +03:00
Marina Noskova
05353a1492 Removed trailing whitespaces 2016-02-10 16:59:12 +03:00
Marina Noskova
41c0a38344 Fixed test samples for tests with different borders
Added new test (separating two points)
2016-02-10 16:59:12 +03:00
Marina Noskova
bfdca05f25 Added margin type, added tests with different scales of features.
Also fixed documentation, refactored sample.
2016-02-10 16:59:12 +03:00
Marina Noskova
acd74037b3 Increasing the dimension of features space in the SVMSGD::train function. 2016-02-10 16:59:11 +03:00
Marina Noskova
40bf97c6d1 Refactored SVMSGD class 2016-02-10 16:56:14 +03:00
alcinos
6e3b90de9b Add static creator for TVL1 optical flow class 2016-01-28 20:03:28 +01:00
Alexander Fedorov
474c53ac71 Fixed parser for img1_filename and img2_filename.
Without fixes after 68 line (img1_filename = parser.get<std::string>(0);) OpenCV Error:
./stereo_matching im0.png im1.png --max-disparity=16 --blocksize=17

OpenCV Error: Bad argument (undeclared position 0 requested) in getByIndex, file /home/entodi/opencv/modules/core/src/command_line_parser.cpp, line 169
terminate called after throwing an instance of 'cv::Exception'
  what():  /home/entodi/opencv/modules/core/src/command_line_parser.cpp:169: error: (-5) undeclared position 0 requested in function getByIndex
2016-01-18 15:34:41 +03:00
Ishank gulati
24da1ba3dc added videoio docs and tutorials 2015-12-26 10:48:01 +05:30
Alexander Alekhin
03e74330fa Merge pull request #5828 from mshabunin:CommandLineArgs 2015-12-17 17:46:37 +00:00
ValeryTyumen
297808e6b9 Feature #3957 2015-12-17 18:19:39 +03:00
Alexander Alekhin
8f60740205 fix build warning (unreachable code) and exit error codes 2015-12-15 22:06:11 +03:00
Alexander Alekhin
31d0dcf28e fixup 2015-12-15 15:54:45 +03:00
Alexander Alekhin
8f732f2cfe fix samples deps
some tutorials depends on contrib modules
2015-12-12 15:23:31 +03:00
Deanna Hood
0d706f6796 Return uncompressed support vectors for getSupportVectors on linear SVM (Bug #4096) 2015-12-10 18:31:02 +03:00
niederb
d8e3971e7f Fixed variable importance in rtrees 2015-12-10 18:09:15 +03:00
LaurentBerger
bef009c9dd fixed #5005: stitching_detailed.cpp 2015-11-23 21:55:59 +01:00
Vadim Pisarevsky
c4edd86aeb Merge pull request #5400 from dtmoodie:thrust_tutorial 2015-11-23 18:36:42 +00:00
Dan
aa14b6d2f3 Merge branch 'thrust_tutorial' of http://github.com/dtmoodie/opencv into thrust_tutorial 2015-11-10 12:29:51 -05:00
Dan
01f40cfafc Corrected the case where channel == -1 2015-11-10 12:29:29 -05:00