Commit Graph

26 Commits

Author SHA1 Message Date
bmad
99c9b61cfc fix orientation thresholding in anisotropic_image_segmentation.py
The Python tutorial sample thresholds the orientation with a single cv.threshold call, passing HighThr as the maxval argument rather than as an upper bound:

```_, imgOrientationBin = cv.threshold(imgOrientation, LowThr, HighThr, cv.THRESH_BINARY)```

That computes imgOrientation > LowThr ? HighThr : 0, so HighThr never restricts the angle. The C++ counterpart uses inRange(imgOrientation, Scalar(LowThr), Scalar(HighThr), imgOrientationBin), and the tutorial text states "LowThr and HighThr define orientation range", so the C++ behaviour is the intended one.
2026-08-20 16:14:30 +01:00
Prasoon Bodke
5846edaa83 Merge pull request #29663 from Prasoon-Bodke:fix/houghlinesp-doc-shape-5.0
samples: fix HoughLines/HoughLinesP Python sample for 5.0 shape change (fixes #29637) - #29663

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Fixes #29637.

OpenCV 5.0 changed vector-backed Mat/OutputArray to true 1D arrays (see 
migration guide: 1D and 0D array semantics). This changes HoughLines/
HoughLinesP Python return shape from (N,1,X) to (N,X), breaking the old 
indexing pattern used in the tutorial sample.

Tested locally against opencv-python 5.0 — script runs without error, 
lines drawn correctly on samples/data/sudoku.png.
2026-08-13 14:14:31 +03:00
krikera
27867cc72c Add MORPH_DIAMOND support to samples and tutorials 2025-06-27 21:09:53 +05:30
Ken Shirriff
d5a5b0e85f Update match_template.py to fix doc bug
shape has Y first, then X. See issue #27292
2025-05-12 17:06:24 +03:00
Christos Malliaridis
3c25fd1ba5 Update and expand erosion / dilation tutorial
- Add python explanation for erosion and dilation
- Add java explanation for erosion and dilation
- Restructure and reword specific sections
2020-11-18 13:32:24 +01:00
dmici
6876f3b91d fix missing 0.5 factor in anisotropic segmentation tutorial 2020-08-30 10:17:50 +02:00
Alexander Alekhin
0e40c8a031 fix pylint warnings
pylint 1.8.3
2019-10-16 18:49:33 +03:00
luz.paz
57ccf14952 FIx misc. source and comment typos
Found via `codespell -q 3 -S ./3rdparty,./modules -L amin,ang,atleast,dof,endwhile,hist,uint`

backporting of commit: 32aba5e64b
2019-08-15 13:09:52 +03:00
SchultzC
1e6e18ff05 Changed to integer division 2019-06-06 14:50:45 -07:00
SchultzC
3833d86f0f Merge pull request #14733 from SchultzC:3.4
* cast positional arguments to int

* Changed to integer division based

* removed white space

* removed white space
2019-06-06 13:02:45 +03:00
Pedro Ferreira da Costa
9cef78b685 Merge pull request #14109 from PedroFerreiradaCosta:adding_python_version_to_anisotropic_tutorial
* Created python version of the code for the anisotropic image segmentation tutorial. Created python/cpp toggles for the markdown file.

* fix doxygen warnings
2019-03-21 22:53:12 +03:00
Alexander Alekhin
c371df4aa2 samples: use findFile() in "python" 2018-11-16 18:08:22 +00:00
Suleyman TURKMEN
c61bc3a0cb Update documentation and samples 2018-08-17 14:21:29 +03:00
catree
c9fe6f1afe Add Java and Python code for the following tutorials:
- Changing the contrast and brightness of an image!
      - Operations with images
2018-07-11 20:14:58 +02:00
Alexander Alekhin
dcb9bc2544 python: eliminate pylint warnings
Tested with:
- pylint 1.9.1
2018-06-04 17:58:06 +03:00
catree
9f6108ae7a Add Java and Python code for the following imgproc tutorials: Canny, Remap, threshold and threshold inRange. Use HSV colorspace instead of RGB for inRange threshold tutorial. 2018-05-18 20:11:53 +02:00
catree
7e3490959a Add Java and Python code for morphology tutorials. 2018-05-16 14:19:48 +02:00
cclauss
05c1a3d160 print() is a function in Python 3 2018-05-03 07:12:12 +02:00
Alexander Alekhin
5560db73bf python: 'cv2.' -> 'cv.' via 'import cv2 as cv' 2017-12-11 13:46:55 +03:00
tribta
08515281b9 Tutorial Image Pyramids 2017-10-05 14:17:38 +03:00
tribta
d068e27420 Tutorial Morph Lines Detection 2017-10-05 14:14:04 +03:00
tribta
18bc4db75c Tutorial Hit-or-Miss 2017-10-05 14:14:04 +03:00
tribta
bc18fb481f Tutorial Smoothing Images 2017-10-05 14:14:03 +03:00
tribta
7c65f7ef11 Fixing Bad identations (line 18 to 96)
Adding _ to the unused variables for clarity (line 77)
2017-07-11 11:59:22 +01:00
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
catree
e357e2c1b7 Fix typos in py_houghlines tutorial. Extract the python code in a specific folder. 2017-01-17 16:09:27 +01:00