opencv / opencv/opencv-python

opencv-python doesn't have GUI ?

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Description

Hi! I am trying to install the GUI version of opencv-python as opposed to the non-GUI version called opencv-python-headless. However, no matter which version of opencv-python I install, the GUI is not always present. I had to go back to version 4.5.5.64 to find a wheel that has some sort of GUI.

# pip install opencv-python==4.5.5.64; python -c "import cv2; print(cv2.getBuildInformation());"
Collecting opencv-python==4.5.5.64
  Downloading opencv_python-4.5.5.64-cp36-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (18 kB)
Requirement already satisfied: numpy>=1.21.2 in /usr/local/lib/python3.12/dist-packages (from opencv-python==4.5.5.64) (1.26.4)
Downloading opencv_python-4.5.5.64-cp36-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (60.5 MB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 60.5/60.5 MB 52.6 MB/s eta 0:00:00
Installing collected packages: opencv-python
Successfully installed opencv-python-4.5.5.64
.
.
.
  GUI:                           QT5
    QT:                          YES (ver 5.15.0 )
      QT OpenGL support:         NO
    GTK+:                        NO
    VTK support:                 NO
.
.
.
# pip install opencv-python==4.6.0.66; python -c "import cv2; print(cv2.getBuildInformation());"
Collecting opencv-python==4.6.0.66
  Downloading opencv_python-4.6.0.66-cp36-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (18 kB)
Requirement already satisfied: numpy>=1.21.2 in /usr/local/lib/python3.12/dist-packages (from opencv-python==4.6.0.66) (1.26.4)
Downloading opencv_python-4.6.0.66-cp36-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (60.9 MB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 60.9/60.9 MB 73.4 MB/s eta 0:00:00
Installing collected packages: opencv-python
Successfully installed opencv-python-4.6.0.66
.
.
.
  GUI:                           NONE
    GTK+:                        NO
    VTK support:                 NO
.
.
.
# pip install opencv-python==4.7.0.72; python -c "import cv2; print(cv2.getBuildInformation());"
Collecting opencv-python==4.7.0.72
  Using cached opencv_python-4.7.0.72-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (18 kB)
Requirement already satisfied: numpy>=1.21.2 in /usr/local/lib/python3.12/dist-packages (from opencv-python==4.7.0.72) (1.26.4)
Using cached opencv_python-4.7.0.72-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (61.8 MB)
Installing collected packages: opencv-python
Successfully installed opencv-python-4.7.0.72
.
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  GUI:                           NONE
    GTK+:                        NO
    VTK support:                 NO
.
.
.
# pip install opencv-python==4.8.0.74; python -c "import cv2; print(cv2.getBuildInformation());"
Collecting opencv-python==4.8.0.74
  Downloading opencv_python-4.8.0.74-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (19 kB)
Requirement already satisfied: numpy>=1.21.2 in /usr/local/lib/python3.12/dist-packages (from opencv-python==4.8.0.74) (1.26.4)
Downloading opencv_python-4.8.0.74-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (61.7 MB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 61.7/61.7 MB 64.3 MB/s eta 0:00:00
Installing collected packages: opencv-python
Successfully installed opencv-python-4.8.0.74
.
.
.
  GUI:                           NONE
    GTK+:                        NO
    VTK support:                 NO
.
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Same for all of the versions after this one.

Am I doing something wrong?

Contributor guide

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First steps

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Research direction

The report names the opencv-python wheel versions 4.5.5.64 through 4.8.0.74 and the cv2.getBuildInformation() command; start by reproducing those installations and comparing the GUI sections. The payload names no repository files or tests, so done would require identifying why GUI support changed and documenting or correcting the expected wheel behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
build-system
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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