# \#facedetection **URL:** https://forum.opencv.org/tag/facedetection/197.md [Latest](https://forum.opencv.org/latest.md) · [Categories](https://forum.opencv.org/categories.md) · [Tags](https://forum.opencv.org/tags.md) --- ## [Python YUNet workflow](https://forum.opencv.org/t/python-yunet-workflow/20942)
**Author:** [@TypeVar](https://forum.opencv.org/u/TypeVar)\ **Replies:** 0\ **Last updated:** [May 3, 2025, 6:47am UTC](https://forum.opencv.org/t/python-yunet-workflow/20942 "2025-05-03T06:47:14Z")
Hi there. I’m enjoying YUNet face detector from here: opencv\_zoo/models/face\_detection\_yunet at main · opencv/opencv\_zoo · GitHub I noticed that raw .onnx file has input shape of 640x640, but in demo.py the input shape… --- ## [Unable to get hardware acceleration for YuNet on Windows in Python-Opencv](https://forum.opencv.org/t/unable-to-get-hardware-acceleration-for-yunet-on-windows-in-python-opencv/18551)
**Author:** [@nullbyte](https://forum.opencv.org/u/nullbyte)\ **Replies:** 4\ **Last updated:** [August 22, 2024, 11:27am UTC](https://forum.opencv.org/t/unable-to-get-hardware-acceleration-for-yunet-on-windows-in-python-opencv/18551 "2024-08-22T11:27:08Z")
Hi there, I’m building a small project around opencv in Python. The goal is to do some exploration around computer vision inside a custom made python library. I have also built a small GUI that use that library to explo… --- ## [Troubleshooting (-15:Bad number of channels) for face landmarks detection](https://forum.opencv.org/t/troubleshooting-15-bad-number-of-channels-for-face-landmarks-detection/14199)
**Author:** [@Kan\_Kawabata](https://forum.opencv.org/u/Kan_Kawabata)\ **Replies:** 4\ **Last updated:** [August 10, 2023, 6:53am UTC](https://forum.opencv.org/t/troubleshooting-15-bad-number-of-channels-for-face-landmarks-detection/14199 "2023-08-10T06:53:21Z")
Hello I am doing a project using LBF landmark detector using the sample landmark\_demo.py as a starting point. the detector is able to successfully detect faces on the 512 x 512 image of lena as well as a custom 640 x 4… --- ## [Face Recognition using OpenCV](https://forum.opencv.org/t/face-recognition-using-opencv/11559)
**Author:** [@Nfsaja\_5536](https://forum.opencv.org/u/Nfsaja_5536)\ **Replies:** 3\ **Last updated:** [January 10, 2023, 1:37pm UTC](https://forum.opencv.org/t/face-recognition-using-opencv/11559 "2023-01-10T13:37:16Z")
Before Discuss my problem, I described what I want to do. I want to recognize every user based on profile image with single face and determine if the user is fake or not. The given dataset contains training dataset cons… --- ## [How to zoom on/follow MOUTH in FACE?](https://forum.opencv.org/t/how-to-zoom-on-follow-mouth-in-face/7074)
**Author:** [@slowninja](https://forum.opencv.org/u/slowninja)\ **Replies:** 0\ **Last updated:** [January 11, 2022, 11:52am UTC](https://forum.opencv.org/t/how-to-zoom-on-follow-mouth-in-face/7074 "2022-01-11T11:52:01Z")
When I only detect the face the camera zoom on the face and follows it. But when I want to detect & zoom/follow the mouth it doesn’t. Mouth detection only work when the face is detected first so I can’t just detect only… --- ## [How to zoom on/follow MOUTH in FACE? (OPENCV Face Detection)](https://forum.opencv.org/t/how-to-zoom-on-follow-mouth-in-face-opencv-face-detection/7072)
**Author:** [@slowninja](https://forum.opencv.org/u/slowninja)\ **Replies:** 0\ **Last updated:** [January 11, 2022, 11:45am UTC](https://forum.opencv.org/t/how-to-zoom-on-follow-mouth-in-face-opencv-face-detection/7072 "2022-01-11T11:45:08Z")
When I only detect the face the camera zoom on the face and follows it. But when I want to detect & zoom/follow the mouth it doesn’t. Mouth detection only work when the face is detected first so I can’t just detect only… --- ## [Android opencv4 facedetection with javacameraview not working in portrait mode](https://forum.opencv.org/t/android-opencv4-facedetection-with-javacameraview-not-working-in-portrait-mode/1335)
**Author:** [@bhattkishan](https://forum.opencv.org/u/bhattkishan)\ **Replies:** 0\ **Last updated:** [February 4, 2021, 8:18am UTC](https://forum.opencv.org/t/android-opencv4-facedetection-with-javacameraview-not-working-in-portrait-mode/1335 "2021-02-04T08:18:28Z")
I am new to Opencv sdk in android and i am developing app for face detecion but the problem is Opencv javacamera view work perfect in landscape mode but when i modify CameraBirdgeview base to portrait facedetection stop …