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Diffstat (limited to 'docs/user_guide/gaze_analysis_pipeline')
| -rw-r--r-- | docs/user_guide/gaze_analysis_pipeline/advanced_topics/scripting.md | 160 | ||||
| -rw-r--r-- | docs/user_guide/gaze_analysis_pipeline/ar_frame_configuration_and_execution.md | 47 | ||||
| -rw-r--r-- | docs/user_guide/gaze_analysis_pipeline/ar_layer.md (renamed from docs/user_guide/gaze_analysis_pipeline/ar_layer_configuration_and_execution.md) | 71 | ||||
| -rw-r--r-- | docs/user_guide/gaze_analysis_pipeline/background.md | 31 | ||||
| -rw-r--r-- | docs/user_guide/gaze_analysis_pipeline/heatmap.md | 24 | ||||
| -rw-r--r-- | docs/user_guide/gaze_analysis_pipeline/introduction.md | 6 | ||||
| -rw-r--r-- | docs/user_guide/gaze_analysis_pipeline/logging.md | 2 | ||||
| -rw-r--r-- | docs/user_guide/gaze_analysis_pipeline/visualisation.md | 196 |
8 files changed, 251 insertions, 286 deletions
diff --git a/docs/user_guide/gaze_analysis_pipeline/advanced_topics/scripting.md b/docs/user_guide/gaze_analysis_pipeline/advanced_topics/scripting.md new file mode 100644 index 0000000..2db69fc --- /dev/null +++ b/docs/user_guide/gaze_analysis_pipeline/advanced_topics/scripting.md @@ -0,0 +1,160 @@ +Script the pipeline +=================== + +All gaze analysis pipeline objects are accessible from Python script. +This could be particularly useful for realtime gaze interaction applications. + +## Load ArFrame configuration from dictionary + +First of all, [ArFrame](../../../argaze.md/#argaze.ArFeatures.ArFrame) configuration can be loaded from a python dictionary. + +```python +from argaze import ArFeatures + +# Edit a dict with ArFrame configuration +configuration = { + "name": "My FullHD screen", + "size": (1920, 1080), + ... + "gaze_movement_identifier": { + ... + }, + "scan_path": { + ... + }, + "scan_path_analyzers": { + ... + }, + "heatmap": { + ... + }, + "layers": { + "MyLayer": { + ... + }, + ... + }, + "image_parameters": { + ... + } +} + +# Load ArFrame +ar_frame = ArFeatures.ArFrame.from_dict(configuration) + +# Do something with ArFrame +... +``` + +## Access to ArFrame and ArLayers attributes + +Then, once the configuration is loaded, it is possible to access to its attributes: [read ArFrame code reference](../../../argaze.md/#argaze.ArFeatures.ArFrame) to get a complete list of what is available. + +Thus, the [ArFrame.layers](../../../argaze.md/#argaze.ArFeatures.ArFrame) attribute allows to access each loaded layer and so, access to their attributes: [read ArLayer code reference](../../../argaze.md/#argaze.ArFeatures.ArLayer) to get a complete list of what is available. + +```python +from argaze import ArFeatures + +# Assuming the ArFrame is loaded +... + +# Iterate over each ArFrame layers +for name, ar_layer in ar_frame.layers.items(): + ... +``` + +## Pipeline execution outputs + +[ArFrame.look](../../../argaze.md/#argaze.ArFeatures.ArFrame.look) method returns many data about pipeline execution. + +```python +# Assuming that timestamped gaze positions are available +... + + # Look ArFrame at a timestamped gaze position + gaze_movement, scan_path_analysis, layers_analysis, execution_times, exception = ar_frame.look(timestamp, gaze_position) + + # Check if a gaze movement has been identified + if gaze_movement.valid and gaze_movement.finished: + + # Do something with identified fixation + if GazeFeatures.is_fixation(gaze_movement): + ... + + # Do something with identified saccade + elif GazeFeatures.is_saccade(gaze_movement): + ... + + # Do something with scan path analysis + for module, analysis in scan_path_analysis.items(): + for data, value in analysis.items(): + ... + + # Do something with each layer AOI scan path analysis + for layer_name, layer_aoi_scan_path_analysis in layers_analysis.items(): + for module, analysis in layer_aoi_scan_path_analysis.items(): + for data, value in analysis.items(): + ... + + # Do something with pipeline execution times + ... + + # Do something with pipeline exception + if exception: + ... +``` + +Let's understand the meaning of each returned data. + +### Gaze movement + +A [GazeMovement](../../../argaze.md/#argaze.GazeFeatures.GazeMovement) once it have been identified by [ArFrame.gaze_movement_identifier](../../../argaze.md/#argaze.ArFeatures.ArFrame) object from incoming consecutive timestamped gaze positions. If no gaze movement have been identified, it returns an [UnvalidGazeMovement](../../../argaze.md/#argaze.GazeFeatures.UnvalidGazeMovement). + +This could also be the current gaze movement if [ArFrame.filter_in_progress_fixation](../../../argaze.md/#argaze.ArFeatures.ArFrame) attribute is false. +In that case, the returned gaze movement *finished* flag is false. + +Then, the returned gaze movement type can be tested thanks to [GazeFeatures.is_fixation](../../../argaze.md/#argaze.GazeFeatures.is_fixation) and [GazeFeatures.is_saccade](../../../argaze.md/#argaze.GazeFeatures.is_saccade) functions. + +### Scan path analysis + +A dictionary with all last scan path analysis if new scan step have been added to the [ArFrame.scan_path](../../../argaze.md/#argaze.ArFeatures.ArFrame) object. + +### Layers analysis + +A dictionary with all layers AOI scan path analysis if new AOI scan step have been added to an [ArLayer.aoi_scan_path](../../../argaze.md/#argaze.ArFeatures.ArLayer) object. + +### Execution times + +A dictionary with each pipeline step execution time. + +### Exception + +A [python Exception](https://docs.python.org/3/tutorial/errors.html#exceptions) object raised during pipeline execution. + +## Setup ArFrame image parameters + +[ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) method parameters can be configured thanks to a python dictionary. + +```python +# Assuming ArFrame is loaded +... + +# Edit a dict with ArFrame image parameters +image_parameters = { + "draw_scan_path": { + ... + }, + "draw_layers": { + "MyLayer": { + ... + } + }, + ... +} + +# Pass image parameters to ArFrame +ar_frame_image = ar_frame.image(**image_parameters) + +# Do something with ArFrame image +... +``` diff --git a/docs/user_guide/gaze_analysis_pipeline/ar_frame_configuration_and_execution.md b/docs/user_guide/gaze_analysis_pipeline/ar_frame_configuration_and_execution.md index 37100ab..cdc7fe0 100644 --- a/docs/user_guide/gaze_analysis_pipeline/ar_frame_configuration_and_execution.md +++ b/docs/user_guide/gaze_analysis_pipeline/ar_frame_configuration_and_execution.md @@ -40,26 +40,6 @@ from argaze import ArFeatures # Load ArFrame ar_frame = ArFeatures.ArFrame.from_json('./configuration.json') - -# Print ArFrame attributes -print("name:", ar_frame.name) -print("size:", ar_frame.size) -print("gaze movement identifier type:", type(ar_frame.gaze_movement_identifier)) -print("scan path:", ar_frame.scan_path) - -for module, analyzer in ar_frame.scan_path_analyzers.items(): - print('scan path analyzer module:', module) -``` - -Finally, here is what the program writes in console: - -```txt -name: My FullHD screen -size: [1920, 1080] -gaze movement identifier type: <class 'argaze.GazeAnalysis.DispersionThresholdIdentification.GazeMovementIdentifier'> -scan path: [] -scan path analyzer module: argaze.GazeAnalysis.Basic -scan path analyzer module: argaze.GazeAnalysis.ExploitExploreRatio ``` Now, let's understand the meaning of each JSON entry. @@ -119,30 +99,5 @@ Timestamped gaze positions have to be passed one by one to [ArFrame.look](../../ ... # Look ArFrame at a timestamped gaze position - movement, scan_path_analysis, _, execution_times, exception = ar_frame.look(timestamp, gaze_position) - - # Check if a movement has been identified - if movement.valid and movement.finished: - - # Do something with identified fixation - if GazeFeatures.is_fixation(movement): - ... - - # Do something with identified saccade - elif GazeFeatures.is_saccade(movement): - ... - - # Do something with scan path analysis - for module, analysis in scan_path_analysis.items(): - for data, value in analysis.items(): - ... - - # Do something with pipeline execution times - ... - - # Do something with pipeline exception - if exception: - ... + ar_frame.look(timestamp, gaze_position) ``` - - diff --git a/docs/user_guide/gaze_analysis_pipeline/ar_layer_configuration_and_execution.md b/docs/user_guide/gaze_analysis_pipeline/ar_layer.md index e96bfff..893e50c 100644 --- a/docs/user_guide/gaze_analysis_pipeline/ar_layer_configuration_and_execution.md +++ b/docs/user_guide/gaze_analysis_pipeline/ar_layer.md @@ -1,5 +1,5 @@ -Add and execute ArLayer -============================= +Add an ArLayer +============== The [ArLayer](../../argaze.md/#argaze.ArFeatures.ArLayer) class defines a space where to make matching of gaze movements and AOIs and inside which those matchings need to be analyzed. @@ -9,7 +9,7 @@ The [ArLayer](../../argaze.md/#argaze.ArFeatures.ArLayer) class defines a space An [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) instance can contains multiples [ArLayers](../../argaze.md/#argaze.ArFeatures.ArLayer). -Here is the JSON ArFrame configuration file example where one layer is added: +Here is an extract from the JSON ArFrame configuration file with a sample where one layer is added: ```json { @@ -46,49 +46,9 @@ Here is the JSON ArFrame configuration file example where one layer is added: } ``` -Then, after the JSON file being loaded: - -```python -from argaze import ArFeatures - -# Assuming the ArFrame is loaded -... - -# Print ArLayer attributes -for name, ar_layer in ar_frame.layers.items(): - - print("name:", ar_layer.name) - print("AOI color:", ar_layer.aoi_color) - print("AOI scene:", ar_layer.aoi_scene) - print("AOI matcher type:", type(ar_layer.aoi_matcher)) - print("AOI scan path:", ar_layer.aoi_scan_path) - - for module, analyzer in ar_layer.aoi_scan_path_analyzers.items(): - print('AOI scan path analyzer module:', module) -``` +!!! note -Finally, here is what the program writes in console: - -```txt -... - -name: MyLayer -AOI color: [0, 0, 255] -AOI scene: - upper_left_corner: -[[0, 0], [960, 0], [960, 540], [0, 540]] - upper_right_corner: -[[960, 0], [1920, 0], [1920, 540], [960, 540]] - lower_left_corner: -[[0, 540], [960, 540], [960, 1080], [0, 1080]] - lower_right_corner: -[[960, 540], [1920, 540], [1920, 1080], [960, 1080]] -AOI matcher type: <class 'argaze.GazeAnalysis.DeviationCircleCoverage.AOIMatcher'> -AOI scan path: [] -AOI scan path analyzer module: argaze.GazeAnalysis.Basic -AOI scan path analyzer module: argaze.GazeAnalysis.TransitionMatrix -AOI scan path analyzer module: argaze.GazeAnalysis.NGram -``` + Timestamped gaze movements identified by parent [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) are passed one by one to each [ArLayer](../../argaze.md/#argaze.ArFeatures.ArLayer). So, the execution of all [ArLayers](../../argaze.md/#argaze.ArFeatures.ArLayer) is done during parent [ArFrame.look](../../argaze.md/#argaze.ArFeatures.ArFrame.look) method call as explained in [previous chapter](ar_frame_configuration_and_execution.md). Now, let's understand the meaning of each JSON entry. @@ -137,24 +97,3 @@ The [AOIScanPath.duration_max](../../argaze.md/#argaze.GazeFeatures.AOIScanPath. Finally, the last [ArLayer](../../argaze.md/#argaze.ArFeatures.ArLayer) pipeline step consists in passing the previously built [AOIScanPath](../../argaze.md/#argaze.GazeFeatures.AOIScanPath) to each loaded [AOIScanPathAnalyzer](../../argaze.md/#argaze.GazeFeatures.AOIScanPathAnalyzer). Each analysis algorithm can be selected by instantiating a particular [AOIScanPathAnalyzer](../../argaze.md/#argaze.GazeFeatures.AOIScanPathAnalyzer) from the [argaze.GazeAnalysis](../../argaze.md/#argaze.GazeAnalysis) submodule or [from another python package](advanced_topics/module_loading.md). - -## Pipeline execution - -Timestamped gaze movements identified by parent ArFrame are passed one by one to each [ArLayer.look](../../argaze.md/#argaze.ArFeatures.ArLayer.look) method to execute each layer intanciated pipeline. - -```python -# Assuming that timestamped gaze positions are available -... - - # Look ArFrame at a timestamped gaze position - movement, _, layers_analysis, _, _ = ar_frame.look(timestamp, gaze_position) - - # Check if a movement has been identified - if movement.valid and movement.finished: - - # Do something with each layer AOI scan path analysis - for layer_name, layer_aoi_scan_path_analysis in layers_analysis.items(): - for module, analysis in layer_aoi_scan_path_analysis.items(): - for data, value in analysis.items(): - ... -``` diff --git a/docs/user_guide/gaze_analysis_pipeline/background.md b/docs/user_guide/gaze_analysis_pipeline/background.md index 420dbdf..a7d59f6 100644 --- a/docs/user_guide/gaze_analysis_pipeline/background.md +++ b/docs/user_guide/gaze_analysis_pipeline/background.md @@ -1,7 +1,7 @@ -Add Background -============== +Add a background +================ -Background is an optional [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) attribute to display any image. +Background is an optional [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) attribute to display any image behind pipeline visualisation.  @@ -9,7 +9,7 @@ Background is an optional [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) [ArFrame.background](../../argaze.md/#argaze.ArFeatures.ArFrame.background) can be enabled thanks to a dedicated JSON entry. -Here is the JSON ArFrame configuration file example where a background picture is loaded and displayed: +Here is an extract from the JSON ArFrame configuration file where a background picture is loaded and displayed: ```json { @@ -25,6 +25,9 @@ Here is the JSON ArFrame configuration file example where a background picture i } ``` +!!! note + As explained in [visualisation chapter](visualisation.md), the resulting image is accessible thanks to [ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) method. + Now, let's understand the meaning of each JSON entry. ### Background @@ -34,23 +37,3 @@ The path to an image file on disk. ### Background weight The weight of background overlay in [ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) between 0 and 1. - -## Edit ArFrame background - -It is also possible to set background image and display it from script: - -```python -import numpy - -# Assuming an ArFrame is loaded -... - -# Set ArFrame background as gray -ar_frame.background = numpy.full((ar_frame.size[1], ar_frame.size[0], 3), 127).astype(numpy.uint8) - -# Get ArFrame image with background and any other options -ar_frame_image = ar_frame.image(background_weight = 1, ...) - -# Do something with ArFrame image -... -``` diff --git a/docs/user_guide/gaze_analysis_pipeline/heatmap.md b/docs/user_guide/gaze_analysis_pipeline/heatmap.md index a741810..fe4246e 100644 --- a/docs/user_guide/gaze_analysis_pipeline/heatmap.md +++ b/docs/user_guide/gaze_analysis_pipeline/heatmap.md @@ -1,5 +1,5 @@ -Add Heatmap -=========== +Add a heatmap +============= Heatmap is an optional [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) pipeline step. It is executed at each new gaze position to update heatmap image. @@ -9,7 +9,7 @@ Heatmap is an optional [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) pip [ArFrame.heatmap](../../argaze.md/#argaze.ArFeatures.ArFrame.heatmap) can be enabled thanks to a dedicated JSON entry. -Here is the JSON ArFrame configuration file example where heatmap is enabled and displayed: +Here is an extract from the JSON ArFrame configuration file where heatmap is enabled and displayed: ```json { @@ -28,22 +28,8 @@ Here is the JSON ArFrame configuration file example where heatmap is enabled and } } ``` - -Then, here is how to access to heatmap object: - -```python - -# Assuming an ArFrame is loaded -... - -print("heatmap:", ar_frame.heatmap) -``` - -Finally, here is what the program writes in console: - -```txt -heatmap: Heatmap(size=[320, 180], buffer=0, sigma=0.025) -``` +!!! note + [ArFrame.heatmap](../../argaze.md/#argaze.ArFeatures.ArFrame.heatmap) is automatically updated each time the [ArFrame.look](../../argaze.md/#argaze.ArFeatures.ArFrame.look) method is called. As explained in [visualisation chapter](visualisation.md), the resulting image is accessible thanks to [ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) method. Now, let's understand the meaning of each JSON entry. diff --git a/docs/user_guide/gaze_analysis_pipeline/introduction.md b/docs/user_guide/gaze_analysis_pipeline/introduction.md index c3f574b..002ba1f 100644 --- a/docs/user_guide/gaze_analysis_pipeline/introduction.md +++ b/docs/user_guide/gaze_analysis_pipeline/introduction.md @@ -11,11 +11,13 @@ To build your own gaze analysis pipeline, you need to know: * [How to edit timestamped gaze positions](timestamped_gaze_positions_edition.md), * [How to deal with an ArFrame instance](ar_frame_configuration_and_execution.md), -* [How to deal with an ArLayer instance](ar_layer_configuration_and_execution.md), +* [How to add ArLayer instance](ar_layer.md), * [How to visualize ArFrame and ArLayers](visualisation.md), * [How to log resulted gaze analysis](logging.md), -* [How to add heatmap](heatmap.md). +* [How to make heatmap image](heatmap.md). +* [How to add a background image](background.md). More advanced features are also explained like: +* [How to script gaze analysis pipeline](advanced_topics/scripting.md) * [How to load module from another package](advanced_topics/module_loading.md) diff --git a/docs/user_guide/gaze_analysis_pipeline/logging.md b/docs/user_guide/gaze_analysis_pipeline/logging.md index 422b43b..1dea712 100644 --- a/docs/user_guide/gaze_analysis_pipeline/logging.md +++ b/docs/user_guide/gaze_analysis_pipeline/logging.md @@ -7,7 +7,7 @@ Log gaze analysis [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) and [ArLayer](../../argaze.md/#argaze.ArFeatures.ArLayer) have a log attribute to enable analysis logging. -Here is the JSON ArFrame configuration file example where logging is enabled for the ArFrame and for one ArLayer: +Here is an extract from the JSON ArFrame configuration file where logging is enabled for the ArFrame and for one ArLayer: ```json { diff --git a/docs/user_guide/gaze_analysis_pipeline/visualisation.md b/docs/user_guide/gaze_analysis_pipeline/visualisation.md index ad59d54..852cdc5 100644 --- a/docs/user_guide/gaze_analysis_pipeline/visualisation.md +++ b/docs/user_guide/gaze_analysis_pipeline/visualisation.md @@ -1,10 +1,75 @@ -Visualize ArFrame and ArLayers -============================== +Visualize ArFrame +================= -All [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) and [ArLayers](../../argaze.md/#argaze.ArFeatures.ArFrame) pipeline steps result can be drawn in real time or afterward. +Visualisation is not a pipeline step but each [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) pipeline steps outputs can be drawn in real time or afterward, depending of application purpose.  +## Add image parameters to ArFrame JSON configuration file + +[ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) method parameters can be configured thanks to a dedicated JSON entry. + +Here is an extract from the JSON ArFrame configuration file with a sample where image parameters are added: + +```json +{ + "name": "My FullHD screen", + "size": [1920, 1080], + ... + "image_parameters": { + "draw_scan_path": { + "draw_fixations": { + "deviation_circle_color": [255, 0, 255], + "duration_border_color": [127, 0, 127], + "duration_factor": 1e-2 + }, + "draw_saccades": { + "line_color": [255, 0, 255] + }, + "deepness": 0 + }, + "draw_layers": { + "MyLayer": { + "draw_aoi_scene": { + "draw_aoi": { + "color": [255, 255, 255], + "border_size": 1 + } + }, + "draw_aoi_matching": { + "draw_matched_fixation": { + "deviation_circle_color": [255, 255, 255] + }, + "draw_matched_fixation_positions": { + "position_color": [0, 255, 255], + "line_color": [0, 0, 0] + }, + "draw_matched_region": { + "color": [0, 255, 0], + "border_size": 4 + }, + "draw_looked_aoi": { + "color": [0, 255, 0], + "border_size": 2 + }, + "looked_aoi_name_color": [255, 255, 255], + "looked_aoi_name_offset": [0, -10] + } + } + }, + "draw_gaze_position": { + "color": [0, 255, 255] + } + } +} +``` + +!!! warning + Most of *image_parameters* entries work if related ArFrame/ArLayer pipeline steps are enabled. + For example, JSON *draw_scan_path* entry needs GazeMovementIdentifier and ScanPath steps to be enabled. + +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/). @@ -70,128 +135,3 @@ if __name__ == '__main__': main() ``` - -## Edit ArFrame image parameters - -[ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) method parameters can be configured thanks to dictionary. - -```python -# Assuming ArFrame is loaded -... - -# Edit ArFrame image parameters -image_parameters = { - "draw_scan_path": { - "draw_fixations": { - "deviation_circle_color": [255, 0, 255], - "duration_border_color": [127, 0, 127], - "duration_factor": 1e-2 - }, - "draw_saccades": { - "line_color": [255, 0, 255] - }, - "deepness": 0 - }, - "draw_layers": { - "MyLayer": { - "draw_aoi_scene": { - "draw_aoi": { - "color": [255, 255, 255], - "border_size": 1 - } - }, - "draw_aoi_matching": { - "draw_matched_fixation": { - "deviation_circle_color": [255, 255, 255] - }, - "draw_matched_fixation_positions": { - "position_color": [0, 255, 255], - "line_color": [0, 0, 0] - }, - "draw_matched_region": { - "color": [0, 255, 0], - "border_size": 4 - }, - "draw_looked_aoi": { - "color": [0, 255, 0], - "border_size": 2 - }, - "looked_aoi_name_color": [255, 255, 255], - "looked_aoi_name_offset": [0, -10] - } - } - }, - "draw_gaze_position": { - "color": [0, 255, 255] - } -} - -# Pass image parameters to ArFrame -ar_frame_image = ar_frame.image(**image_parameters) - -# Do something with ArFrame image -... -``` - -## Configure ArFrame image parameters - -[ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) method parameters can also be configured thanks to a dedicated JSON entry. - -Here is the JSON ArFrame configuration file example with image parameters included: - -```json -{ - "name": "My FullHD screen", - "size": [1920, 1080], - ... - "image_parameters": { - "draw_scan_path": { - "draw_fixations": { - "deviation_circle_color": [255, 0, 255], - "duration_border_color": [127, 0, 127], - "duration_factor": 1e-2 - }, - "draw_saccades": { - "line_color": [255, 0, 255] - }, - "deepness": 0 - }, - "draw_layers": { - "MyLayer": { - "draw_aoi_scene": { - "draw_aoi": { - "color": [255, 255, 255], - "border_size": 1 - } - }, - "draw_aoi_matching": { - "draw_matched_fixation": { - "deviation_circle_color": [255, 255, 255] - }, - "draw_matched_fixation_positions": { - "position_color": [0, 255, 255], - "line_color": [0, 0, 0] - }, - "draw_matched_region": { - "color": [0, 255, 0], - "border_size": 4 - }, - "draw_looked_aoi": { - "color": [0, 255, 0], - "border_size": 2 - }, - "looked_aoi_name_color": [255, 255, 255], - "looked_aoi_name_offset": [0, -10] - } - } - }, - "draw_gaze_position": { - "color": [0, 255, 255] - } - } -} -``` - -!!! warning - Most of *image_parameters* entries work if related ArFrame/ArLayer pipeline steps are enabled. - For example, JSON *draw_scan_path* entry needs GazeMovementIdentifier and ScanPath steps to be enabled.
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