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opencv/samples/cpp
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Arnesh Banerjee 11b0bd15cf samples: demonstrate SimpleBlobDetector contour collection 
Enable collectContours in detect_blob.cpp and draw the per-blob
contours returned by getBlobContours(), so the sample exercises the
public contour-collection API added in #21942.

Refs #25904
2026-06-07 12:18:39 +05:30
..
example_cmake
Fix configuring with CMake version 4
2025-04-02 13:45:08 -07:00
tutorial_code
Merge pull request #28824 from s-trinh:update_ArUco_doc
2026-05-20 15:05:51 +03:00
3calibration.cpp
Merge pull request #23108 from crackwitz:issue-23107
2023-01-09 09:55:31 +00:00
application_trace.cpp
Update Samples
2019-09-05 01:10:51 +03:00
aruco_dict_utils.cpp
Merge pull request #28824 from s-trinh:update_ArUco_doc
2026-05-20 15:05:51 +03:00
asift.cpp
Merge pull request #17907 from Yosshi999:gsoc_asift-py2cpp
2020-08-03 14:11:55 +00:00
audio_spectrogram.cpp
Merge pull request #20934 from SinM9:spectrogram_samples
2021-12-14 17:33:26 +00:00
barcode.cpp
Merge pull request #23666 from mshabunin:barcode-move
2023-06-14 22:21:38 +03:00
bgfg_segm.cpp
samples: use findFile() in "cpp"
2018-11-16 18:08:22 +00:00
calibration.cpp
Merge pull request #28824 from s-trinh:update_ArUco_doc
2026-05-20 15:05:51 +03:00
camshiftdemo.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
cloning_demo.cpp
samples: use findFile() in "cpp"
2018-11-16 18:08:22 +00:00
cloning_gui.cpp
samples: use findFile() in "cpp"
2018-11-16 18:08:22 +00:00
CMakeLists.txt
Revert "suppress warning on GCC 7 and later"
2022-08-07 15:43:10 +03:00
connected_components.cpp
samples: use findFile() in "cpp"
2018-11-16 18:08:22 +00:00
contours2.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
convexhull.cpp
Update convexhull.cpp
2021-09-11 23:58:14 +03:00
cout_mat.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
create_mask.cpp
Update samples
2020-07-23 20:09:37 +03:00
dbt_face_detection.cpp
samples: use findFile() in "cpp"
2018-11-16 18:08:22 +00:00
delaunay2.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
demhist.cpp
Update Samples
2019-09-05 01:10:51 +03:00
detect_blob.cpp
samples: demonstrate SimpleBlobDetector contour collection
2026-06-07 12:18:39 +05:30
detect_mser.cpp
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2020-03-04 20:49:09 +00:00
dft.cpp
Update Samples
2019-09-05 01:10:51 +03:00
digits_lenet.cpp
add OpenCV sample for digit and text recongnition, and provide multiple OCR models.
2020-08-22 01:02:13 +08:00
digits_svm.cpp
Add namespace specifier for format()
2021-04-21 14:08:52 +08:00
dis_opticalflow.cpp
Update samples
2019-09-20 18:03:26 +03:00
distrans.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
drawing.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
edge.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
ela.cpp
Update samples
2019-09-20 18:03:26 +03:00
em.cpp
…
epipolar_lines.cpp
Merge pull request #17683 from ivashmak:homography
2020-08-14 22:42:26 +00:00
essential_mat_reconstr.cpp
Update essential_mat_reconstr.cpp
2021-01-18 23:56:34 +08:00
facedetect.cpp
Merge pull request #23108 from crackwitz:issue-23107
2023-01-09 09:55:31 +00:00
facial_features.cpp
fix 4.x links
2021-12-22 13:24:30 +00:00
falsecolor.cpp
Fix trackbar in falsecolor cpp sample
2021-11-06 10:11:58 +00:00
fback.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
ffilldemo.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
fitellipse.cpp
Change article for fitEllipseDirect function
2025-01-07 22:24:48 +03:00
flann_search_dataset.cpp
Merge pull request #17643 from pemmanuelviel:pev--new-flann-demo
2020-08-10 13:26:40 +00:00
gauge.cpp
Merge pull request #28082 from cabelo:4.x
2025-12-03 10:05:50 +03:00
grabcut.cpp
Updated grabcut example to show the background in a transparant way
2021-07-14 22:02:27 +02:00
image_alignment.cpp
core: deprecate MatCommaInitializer_
2026-05-19 07:33:18 +03:00
imagelist_creator.cpp
…
imagelist_reader.cpp
Merge pull request #13188 from alalek:samples_rename
2018-11-17 00:35:05 +03:00
imgcodecs_jpeg.cpp
build: fix warnings
2022-07-02 00:56:10 +03:00
inpaint.cpp
Update Samples
2019-09-05 01:10:51 +03:00
intelligent_scissors.cpp
Merge pull request #16853 from SimpleVlad:note
2020-03-19 21:39:54 +00:00
intersectExample.cpp
Update samples
2020-07-23 20:09:37 +03:00
kalman.cpp
core: deprecate MatCommaInitializer_
2026-05-19 07:33:18 +03:00
kmeans.cpp
Merge pull request #27455 from leopardracer:4.x
2025-06-18 15:28:25 +03:00
laplace.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
letter_recog.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
lkdemo.cpp
…
logistic_regression.cpp
ml: use OpenCV license header for logistic regression
2021-03-17 20:29:52 +00:00
lsd_lines.cpp
restore LSD
2021-10-01 16:23:16 +03:00
mask_tmpl.cpp
Backport C-API cleanup (imgproc) from 5.x
2023-01-16 23:29:50 +03:00
matchmethod_orb_akaze_brisk.cpp
fix 4.x links
2021-12-22 13:24:30 +00:00
minarea.cpp
samples: use findFile() in "cpp"
2018-11-16 18:08:22 +00:00
morphology2.cpp
Add MORPH_DIAMOND support to samples and tutorials
2025-06-27 21:09:53 +05:30
neural_network.cpp
…
npr_demo.cpp
samples: use findFile() in "cpp"
2018-11-16 18:08:22 +00:00
opencv_version.cpp
Minor refactoring in several C++ samples:
2018-03-06 14:23:20 +03:00
pca.cpp
Merge pull request #23108 from crackwitz:issue-23107
2023-01-09 09:55:31 +00:00
peopledetect.cpp
Update Samples
2019-09-05 01:10:51 +03:00
phase_corr.cpp
…
points_classifier.cpp
samples: use findFile() in "cpp"
2018-11-16 18:08:22 +00:00
polar_transforms.cpp
Update Samples
2019-09-05 01:10:51 +03:00
qrcode.cpp
added graphicalCodeDetector, remove QRCodeDetectorBase
2023-06-08 14:50:58 +03:00
segment_objects.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
select3dobj.cpp
core: deprecate MatCommaInitializer_
2026-05-19 07:33:18 +03:00
simd_basic.cpp
Clean up the Universal Intrinsic API.
2023-10-13 19:23:30 +08:00
smiledetect.cpp
Update Samples
2019-09-05 01:10:51 +03:00
squares.cpp
Fix squares sample failure when a single file passed
2021-04-28 09:36:04 +03:00
stereo_calib.cpp
Merge pull request #28824 from s-trinh:update_ArUco_doc
2026-05-20 15:05:51 +03:00
stereo_match.cpp
Update the stereo sample:
2020-08-20 12:20:25 +02:00
stitching_detailed.cpp
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
2020-04-24 19:02:39 +00:00
stitching.cpp
Changed sample code, fixes #18807
2020-11-14 23:29:51 +02:00
text_skewness_correction.cpp
Added tutorial for text skewness correction in C++ and Python.
2020-01-23 08:24:39 +03:00
train_HOG.cpp
Merge pull request #23109 from seanm:misc-warnings
2023-10-06 13:33:21 +03:00
train_svmsgd.cpp
Fix some clang 14 warnings
2023-02-07 01:19:00 +03:00
travelsalesman.cpp
…
tree_engine.cpp
using argv[0] represent binary executable files' name in help() function
2020-02-28 20:36:56 +08:00
videocapture_audio_combination.cpp
Merge pull request #19721 from MaximMilashchenko:Audio
2021-10-20 16:18:24 +03:00
videocapture_audio.cpp
Merge pull request #19721 from MaximMilashchenko:Audio
2021-10-20 16:18:24 +03:00
videocapture_basic.cpp
Update videocapture_basic.cpp
2020-04-24 11:42:45 +03:00
videocapture_camera.cpp
samples: videocapture_camera use VideoCapture with 0 index
2018-07-03 15:44:53 +03:00
videocapture_gphoto2_autofocus.cpp
FIx misc. source and comment typos
2019-08-15 13:09:52 +03:00
videocapture_gstreamer_pipeline.cpp
videoio(doc): add 'videoio_hwaccel' group, fix typos
2021-03-07 04:47:22 +00:00
videocapture_image_sequence.cpp
Merge pull request #13188 from alalek:samples_rename
2018-11-17 00:35:05 +03:00
videocapture_microphone.cpp
Merge pull request #19721 from MaximMilashchenko:Audio
2021-10-20 16:18:24 +03:00
videocapture_obsensor.cpp
Expose Orbbec color camera distortion coefficients as API.
2025-08-12 15:46:28 +03:00
videocapture_openni.cpp
Add tutorial on how to use Orbbec Astra 3D cameras
2020-11-19 13:31:22 +03:00
videocapture_realsense.cpp
New example for realsense
2021-12-16 15:07:53 -03:00
videocapture_starter.cpp
Merge pull request #22149 from seanm:sprintf
2022-06-25 06:48:22 +03:00
videowriter_basic.cpp
samples: avoid using of legacy C-like API
2018-03-26 13:42:35 +03:00
warpPerspective_demo.cpp
Fix some clang 14 warnings
2023-02-07 01:19:00 +03:00
watershed.cpp
Merge pull request #23108 from crackwitz:issue-23107
2023-01-09 09:55:31 +00:00