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diff --git a/docs/user_guide/gaze_analysis_pipeline/visualisation.md b/docs/user_guide/gaze_analysis_pipeline/visualisation.md index 5f06fac..e046ddf 100644 --- a/docs/user_guide/gaze_analysis_pipeline/visualisation.md +++ b/docs/user_guide/gaze_analysis_pipeline/visualisation.md @@ -82,43 +82,6 @@ Here is an extract from the JSON ArFrame configuration file with a sample where Then, [ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) method can be called in various situations. -## Export to PNG file - -Once timestamped gaze positions have been processed by [ArFrame.look](../../argaze.md/#argaze.ArFeatures.ArFrame.look) method, it is possible to write [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) image into a file thanks to [OpenCV package](https://pypi.org/project/opencv-python/). - -```python -import cv2 - -# Assuming that timestamped gaze positions have been processed by ArFrame.look method -... - -# Export ArFrame image -cv2.imwrite('./ar_frame.png', ar_frame.image()) -``` - -## Export to MP4 file - -While timestamped gaze positions are processed by [ArFrame.look](../../argaze.md/#argaze.ArFeatures.ArFrame.look) method, it is possible to write [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) image into a video file thanks to [OpenCV package](https://pypi.org/project/opencv-python/). - -```python -import cv2 - -# Assuming ArFrame is loaded -... - -# Create a video file to save ArFrame -video = cv2.VideoWriter('ar_frame.avi', cv2.VideoWriter_fourcc(*'MJPG'), 10, ar_frame.size) - -# Assuming that timestamped gaze positions are being processed by ArFrame.look method -... - - # Write ArFrame image into video file - video.write(ar_frame.image()) - -# Close video file -video.release() -``` - ## Live window display While timestamped gaze positions are processed by [ArFrame.look](../../argaze.md/#argaze.ArFeatures.ArFrame.look) method, it is possible to display [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) image thanks to [OpenCV package](https://pypi.org/project/opencv-python/). @@ -147,3 +110,7 @@ if __name__ == '__main__': main() ``` + +!!! note "Export to video file" + + Video exportation is detailed in [gaze analysis logging chapter](logging.md).
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