PaddleDetection class
Flutter plugin for PaddlePaddle PP-PicoDet object detection using NCNN.
Constructors
Properties
-
detectionStream
→ Stream<
CameraDetectionEvent> -
Stream of detection results from native camera.
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
capturePhoto(
{required String folder, String prefix = 'capture'}) → Future< CaptureResult> -
Capture current frame. Saves clean + annotated images to
folder. Returns paths and detections. -
detect(
String imagePath) → Future< List< DetectionResult> > - Detect objects in an image file.
-
detectFromBytes(
Uint8List data, int width, int height) → Future< List< DetectionResult> > - Detect objects from raw RGBA pixel bytes.
-
dispose(
) → Future< void> - Release native resources.
-
getAntiSpoof(
) → Future< bool> - Check if anti-spoof is currently enabled.
-
getGpuCount(
) → Future< int> - Get number of Vulkan GPU devices available.
-
getNumClass(
) → Future< int> - Get number of classes from loaded model.
-
hasGpu(
) → Future< bool> - Check if device has Vulkan GPU available for inference.
-
loadLabelsFromAsset(
String fileName) → Future< List< String> > - Load label names from a text file in Android assets. File format: one label name per line. Returns the list of labels loaded.
-
loadLabelsFromFile(
String path) → Future< List< String> > - Load label names from a text file on device storage. File format: one label name per line. Returns the list of labels loaded.
-
loadModel(
{required String paramName, required String binName, int numClass = 2, int sizeId = 0, int cpuGpu = 0}) → Future< ModelInfo> - Load model from assets. Returns ModelInfo with actual class count from model.
-
loadModelFromFile(
{required String paramPath, required String binPath, int numClass = 2, int sizeId = 0, int cpuGpu = 0}) → Future< ModelInfo> - Load model from file paths. Returns ModelInfo with actual class count.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
setAntiSpoof(
{required bool enabled}) → Future< void> - Enable/disable anti-spoof detection. When enabled, detection is skipped if the image appears to be from a screen/monitor.
-
setLabels(
List< String> ? labels) → Future<void> -
Set custom label names for the loaded model.
Pass a list of class names matching the model's class indices.
Example:
['person', 'car', 'truck']for a 3-class model. Pass null or empty list to use built-in labels (COCO for 80-class, generic for others). -
setThreshold(
{required double threshold}) → Future< void> - Set detection threshold. Both prob and NMS use the same value.
-
startCamera(
) → Future< CameraInfo> - Start native camera. Returns texture info.
-
stopCamera(
) → Future< void> - Stop native camera.
-
switchCamera(
) → Future< bool> - Switch between front and back camera. Returns true if now using front camera.
-
toggleFlash(
{bool? enable}) → Future< bool> - Toggle flash. Returns new flash state.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited