ImageProcessor class abstract

Pure Dart computer vision and image processing engine.

Constructors

ImageProcessor()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

computeLbpMap(FaceImage src) → Uint8List

Computes Local Binary Pattern (LBP) image encoding texture details.

computeSpatialFeatureVector(FaceImage src) → Float32List

Extracts 128-dimensional spatial grid facial feature descriptor (16 cells x 8 features).

crop(FaceImage src, int x, int y, int cropWidth, int cropHeight) → FaceImage

Extracts a sub-rectangle region from an image.

gaussianBlur(FaceImage src, {int kernelSize = 5, double sigma = 1.0}) → FaceImage

Separable Gaussian Spatial Smoothing Blur.

histogramEqualization(FaceImage src) → FaceImage

Contrast enhancement via Histogram Equalization on a Grayscale image.

pad(FaceImage src, int top, int bottom, int left, int right, {Pixel fillColor = const Pixel(0, 0, 0)}) → FaceImage

Adds border padding around an image.

resizeBilinear(FaceImage src, int targetWidth, int targetHeight) → FaceImage

Bilinear resize transformation.

rotate(FaceImage src, double angleRadians, {Pixel fillColor = const Pixel(0, 0, 0)}) → FaceImage

Rotates an image around its center by angleRadians using inverse bilinear mapping.

sobelEdgeDetection(FaceImage src) → FaceImage

Sobel Edge Detection gradient magnitude filter ($G = \sqrt{G_x^2 + G_y^2}$).

toTensor(FaceImage src, {bool normalizeZeroToOne = true, bool standardize = false}) → Tensor

Converts a FaceImage into a 3D neural input Tensor [Channels, Height, Width].