FAQ

C++ SDK Benchmarks
Speed (CPU only)Memory UsageModel SizeFace recognition lite model30 ms30 MB4 MBFace recognition model full200 ms1.3 GB250 MBLandmark detection 20 m...
Thu, 10 Oct, 2019 at 10:04 AM
How to use the python SDK with GPU?
1. Install Cuda: https://developer.nvidia.com/cuda-downloads 2. Install CUDNN: https://developer.nvidia.com/cudnn 3. Install mxnet-gpu for your cuda ve...
Tue, 6 Aug, 2019 at 3:16 PM
VideoStream and QVideoStream Don't work on windows?
There's a known multiprocessing bug on Windows. We recommend using cv2.VideoCapture when working on Windows.
Wed, 7 Aug, 2019 at 12:46 PM
Do you have Sample Apps?
Yes: https://github.com/getchui/sample-apps
Wed, 7 Aug, 2019 at 9:57 PM
Do you have a liveness detection solution for Mobile?
Yes,  we created an offline extremely lightweight neural network (800kb in size) to detect eye blinks in camera feeds, please contact us for further details.
Thu, 15 Aug, 2019 at 4:46 PM
What's the difference between confidence and probability in the responses?
Confidence means confidence level from 0 to 1 that this is a human face. The probability depending on which method call you're using means the probab...
Sun, 25 Aug, 2019 at 4:57 PM
Are face templates (features) cross compatible between models and visionbox images?
No, features (templates) generated from a particular model are not cross compatible with other models, they can only be used with the model that generated t...
Mon, 26 Aug, 2019 at 11:29 AM
How to adjust brightness/Contrast?
There are functions in the Python SDK (trueface.utils)  to adjust brightness and contrast : adjust_gamma(image, gamma=1.0) adjust_brightness_and_contra...
Thu, 5 Sep, 2019 at 11:56 AM
What’s the difference between COObjectTracker and CVObjectTracker?
CVObjectTracker is an implementation that wraps every object tracker available in opencv and allows you to use it easily (attached).  COObjectTracker ...
Tue, 17 Sep, 2019 at 1:10 PM