Builder class of
FirebaseVisionFaceDetectorOptions.
Public Constructor Summary
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FirebaseVisionFaceDetectorOptions.Builder()
Creates a new builder to build
FirebaseVisionFaceDetectorOptions.
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Public Method Summary
| FirebaseVisionFaceDetectorOptions |
build()
Builds a face detector instance.
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| FirebaseVisionFaceDetectorOptions.Builder |
enableTracking()
Enables face tracking, which will maintain a consistent ID for each face when
processing consecutive frames.
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| FirebaseVisionFaceDetectorOptions.Builder |
setClassificationMode(int classificationMode)
Indicates whether to run additional classifiers for characterizing attributes
such as "smiling" and "eyes open".
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| FirebaseVisionFaceDetectorOptions.Builder |
setContourMode(int contourMode)
Sets whether to detect no contours or all contours.
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| FirebaseVisionFaceDetectorOptions.Builder |
setLandmarkMode(int landmarkMode)
Sets whether to detect no landmarks or all landmarks.
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| FirebaseVisionFaceDetectorOptions.Builder |
setMinFaceSize(float minFaceSize)
Sets the smallest desired face size, expressed as a proportion of the width of
the head to the image width.
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| FirebaseVisionFaceDetectorOptions.Builder |
setPerformanceMode(int performanceMode)
Extended option for controlling additional accuracy / speed trade-offs in
performing face detection.
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Inherited Method Summary
Public Constructors
public FirebaseVisionFaceDetectorOptions.Builder ()
Creates a new builder to build
FirebaseVisionFaceDetectorOptions.
Public Methods
public FirebaseVisionFaceDetectorOptions build ()
Builds a face detector instance.
public FirebaseVisionFaceDetectorOptions.Builder enableTracking ()
Enables face tracking, which will maintain a consistent ID for each face when processing consecutive frames. Tracking should be disabled for handling a series of non-consecutive still images.
public FirebaseVisionFaceDetectorOptions.Builder setClassificationMode (int classificationMode)
Indicates whether to run additional classifiers for characterizing attributes such as "smiling" and "eyes open".
Default:
NO_CLASSIFICATIONS
Parameters
| classificationMode | the classification mode used by the detector. One of
NO_CLASSIFICATIONS or
ALL_CLASSIFICATIONS |
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public FirebaseVisionFaceDetectorOptions.Builder setContourMode (int contourMode)
Sets whether to detect no contours or all contours. Processing time increases as the number of contours to search for increases, so detecting all contours will increase the overall detection time. Note that it would return up to 5 faces contours.
Default:
NO_CONTOURS
Parameters
| contourMode | the contour mode used by the detector. One of
NO_CONTOURS or
ALL_CONTOURS. |
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public FirebaseVisionFaceDetectorOptions.Builder setLandmarkMode (int landmarkMode)
Sets whether to detect no landmarks or all landmarks. Processing time increases as the number of landmarks to search for increases, so detecting all landmarks will increase the overall detection time. Detecting landmarks can improve pose estimation.
Default:
NO_LANDMARKS
Parameters
| landmarkMode | the landmark mode used by the detector. One of
NO_LANDMARKS or
ALL_LANDMARKS. |
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public FirebaseVisionFaceDetectorOptions.Builder setMinFaceSize (float minFaceSize)
Sets the smallest desired face size, expressed as a proportion of the width of the head to the image width. For example, if a value of 0.1 is specified then the smallest face to search for is roughly 10% of the width of the image being searched.
Setting the min face size is a performance vs. accuracy trade-off: setting the face size smaller will enable the detector to find smaller faces but detection will take longer; setting the face size larger will exclude smaller faces but will run faster.
This is not a hard limit on face size; the detector may find faces slightly smaller than specified.
Default minimum face size is 0.1.
Parameters
| minFaceSize | the smallest head size to search for relative to the size of the image, in the range of 0.0 and 1.0. For example, a setting of 0.5 would indicate that detected faces need to fill at least half of the image width. |
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public FirebaseVisionFaceDetectorOptions.Builder setPerformanceMode (int performanceMode)
Extended option for controlling additional accuracy / speed trade-offs in performing face detection. In general, choosing the more accurate mode will generally result in longer runtime, whereas choosing the faster mode will generally result in detecting fewer faces.
Default:
FAST