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31 Commits

Author SHA1 Message Date
Laurent Berger
9742c73254
Merge pull request #23442 from LaurentBerger:tuto_findFile 
Fix image loading in tutorials code #23442

Fixes https://github.com/opencv/opencv/issues/23378

### 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
 2023-04-06 13:02:00 +03:00
Vladimir
90be83ae99 Fix an arg for calcHist() in demos 
`float* histRange = { range };` doesn't make much sense. `histRange` is
an array of array(s), so it should have a type of ptr to ptr. Strangely
some domos are correct as well as the example for the function
https://docs.opencv.org/master/d6/dc7/group__imgproc__hist.html#ga4b2b5fd75503ff9e6844cc4dcdaed35d
 2021-06-30 17:22:56 +03:00
float13
1accf3b3f4 Tutorial - Make required input args positional. 
I think it would help to change all 3 of the the input file arguments to be "positional" for consistency with the other tutorials. This also simplifies the command line input to run this tutorial by reducing typing, and helpfully prints the "usage" info if any of the 3 required inputs are missing.

I'm new to OpenCV and working through the tutorials. I kept getting runtime errors with this one until I realized that the arguments weren't positional, and I was missing the "--input1", "--input2, "--input3" flags preceding the filenames. All of the previous tutorials had required filenames as positional arguments and didn't require this.

The original code would require each input to be specified like this:
./compareHist_Demo --input1 filename1 --input2 filename2 --input3 filename3 

But with this change, the above command is simplified to:
./compareHist_Demo  filename1 filename2 filename3

This avoids a confusing runtime error to make things simpler for newcomers like me :)
 2019-10-23 13:07:52 +03:00
Suleyman TURKMEN
f73395122c Update Samples 2019-09-05 01:10:51 +03:00
catree
4c1c3147d9 Add Java and Python code for the following imgproc tutorials: Affine Transformations, Histogram Equalization, Histogram Calculation, Histogram Comparison, Back Projection. 2018-05-24 01:11:28 +02:00
Alexander Alekhin
7f9253ea0a samples: avoid using of legacy C-like API 
- CV_RGB() macro is moved into opencv2/imgproc.hpp from imgproc_c.h
- samples/cpp/filestorage_base64.cpp is dropped
 2018-03-26 13:42:35 +03:00
Suleyman TURKMEN
1654dfe3a9 Update samples (#10333) 
* Update samples

* Update calib3d.hpp

* Update calib3d.hpp

* Update calib3d.hpp

* Update calib3d.hpp
 2017-12-18 13:44:11 +03:00
Cartucho
2055bcc807 Extending template_matching tutorial with Java (#8043) 
* Extending template_matching tutorial with Java

* adding mask to java version of the tutorial

* adding the python toggle and code

* updating table of content

* adding py and java to table of content

* adding mask to python

* going back to markdown with duplicated text

* non duplicated text
 2017-05-12 00:42:04 +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
Arthur Cinader
2b08f29543 Allow for an optional mask for MatchTemplate_Demo 2016-06-30 17:04:25 -07:00
Suleyman TURKMEN
11ca1c95f8 update cpp samples and tutorials 2016-06-26 20:55:00 +03:00
Adil Ibragimov
8a4a1bb018 Several type of formal refactoring: 
1. someMatrix.data -> someMatrix.prt()
2. someMatrix.data + someMatrix.step * lineIndex -> someMatrix.ptr( lineIndex )
3. (SomeType*) someMatrix.data -> someMatrix.ptr<SomeType>()
4. someMatrix.data -> !someMatrix.empty() ( or !someMatrix.data -> someMatrix.empty() ) in logical expressions
 2014-08-13 15:21:35 +04:00
vbystricky
4286f60387 Extract imgcodecs module from highgui 2014-07-07 16:28:08 +04:00
侯骥
055adc2302 Update MatchTemplate_Demo.cpp 2014-06-11 10:29:30 +02:00
Roman Donchenko
cc05493730 Merge remote-tracking branch 'origin/2.4' into merge-2.4 
Conflicts:
	cmake/OpenCVDetectAndroidSDK.cmake
	cmake/OpenCVGenAndroidMK.cmake
	cmake/OpenCVModule.cmake
	cmake/templates/OpenCV.mk.in
	cmake/templates/OpenCVConfig.cmake.in
	doc/tutorials/imgproc/histograms/histogram_comparison/histogram_comparison.rst
	modules/cudabgsegm/src/cuda/mog.cu
	modules/imgproc/perf/opencl/perf_filters.cpp
	modules/imgproc/src/opencl/filterSep_singlePass.cl
	modules/nonfree/CMakeLists.txt
	modules/nonfree/perf/perf_precomp.hpp
	modules/ocl/perf/perf_haar.cpp
	modules/ocl/src/filtering.cpp
	modules/ocl/src/opencl/bgfg_mog.cl
	modules/superres/CMakeLists.txt
	modules/superres/src/btv_l1_cuda.cpp
	modules/superres/src/cuda/btv_l1_gpu.cu
	modules/superres/src/frame_source.cpp
	modules/superres/src/input_array_utility.cpp
	modules/superres/src/optical_flow.cpp
	modules/superres/src/precomp.hpp
	samples/gpu/CMakeLists.txt
	samples/gpu/brox_optical_flow.cpp
	samples/gpu/super_resolution.cpp
 2014-03-24 19:02:16 +04:00
berak
5f94a205d1 fixed h / s ranges in histogram_calculation tutorial 
literalinclude

literalinclude, dropped :lines:
 2014-03-17 11:01:02 +01:00
Roman Donchenko
aacf188e83 Merge remote-tracking branch 'origin/2.4' into merge-2.4 
Conflicts:
	modules/ocl/include/opencv2/ocl/ocl.hpp
	modules/ocl/src/arithm.cpp
	modules/ocl/src/build_warps.cpp
	modules/ocl/src/color.cpp
	modules/ocl/src/haar.cpp
	modules/ocl/src/imgproc.cpp
	modules/ocl/src/split_merge.cpp
	modules/ocl/test/test_color.cpp
	samples/cpp/3calibration.cpp
	samples/cpp/OpenEXRimages_HDR_Retina_toneMapping.cpp
	samples/cpp/OpenEXRimages_HDR_Retina_toneMapping_video.cpp
	samples/cpp/Qt_sample/main.cpp
	samples/cpp/camshiftdemo.cpp
	samples/cpp/descriptor_extractor_matcher.cpp
	samples/cpp/distrans.cpp
	samples/cpp/generic_descriptor_match.cpp
	samples/cpp/grabcut.cpp
	samples/cpp/morphology2.cpp
	samples/cpp/segment_objects.cpp
	samples/cpp/stereo_calib.cpp
	samples/cpp/tutorial_code/Histograms_Matching/compareHist_Demo.cpp
	samples/cpp/tutorial_code/core/mat_mask_operations/mat_mask_operations.cpp
	samples/cpp/tutorial_code/introduction/display_image/display_image.cpp
	samples/cpp/tutorial_code/introduction/windows_visual_studio_Opencv/Test.cpp
	samples/cpp/tutorial_code/objectDetection/objectDetection.cpp
	samples/cpp/tutorial_code/objectDetection/objectDetection2.cpp
	samples/cpp/video_dmtx.cpp
 2013-11-19 16:21:09 +04:00
StevenPuttemans
2b106db02f Applied all fixes related to translating C to C++ code 
Also fixed some typos and code alignment
Also adapted tutorial CPP samples
Fixed some identation problems
 2013-11-17 20:34:50 +01:00
Andrey Kamaev
0738ea7d0f Make highgui.hpp independent from C API 2013-04-08 15:47:29 +04:00
Andrey Kamaev
288a0634c2 Make imgproc.hpp independent from C API 2013-04-08 15:47:28 +04:00
Andrey Kamaev
b131dfeecd Build tutorial codes together with other samples 
These codes should be included into regular builds.
 2012-11-09 10:15:48 +04:00
OpenCV Buildbot
04384a71e4 Normalize line endings and whitespace 2012-10-17 15:32:23 +04:00
Andrey Kamaev
ab20da0f53 Merged the trunk r8547:8574, r8587 2012-06-15 08:36:35 +00:00
Alexander Shishkov
1494da339d fixed #1507 2012-03-05 11:08:59 +00:00
Ana Huaman
9c8aafba27 Fixed small inconsistency in sample code calcBackProject_Demo2.cpp 2011-07-06 14:48:46 +00:00
Ana Huaman
20dd7b70c0 Added tutorial for BackProject in cpp (demo 2) - tutorial code 2011-07-05 18:08:46 +00:00
Ana Huaman
4f7a8f6fb0 Added calcBackProject_Demo1.cpp for tutorial sample code 2011-07-05 06:20:39 +00:00
Ana Huaman
cc2bfdec30 Added compareHist_demo.cpp code 2011-07-04 23:12:27 +00:00
Ana Huaman
4ae5de7f1e Added MatchTemplate_Demo.cpp to tutorial sample code 2011-07-04 18:58:57 +00:00
Ana Huaman
6d549490fb Added calcHist_Demo.cpp tutorial code 2011-07-04 03:22:16 +00:00
Ana Huaman
08724393f4 Added tutorial sample code: EqualizeHist_Demo.cpp 2011-07-03 18:55:47 +00:00