Class CVLaplaceBlock

Namespace

VisioForge.Core.MediaBlocks.OpenCV

Assembly

VisioForge.Core.dll

OpenCV Laplacian edge detection block for advanced image analysis and feature extraction. This block applies the Laplacian operator to detect edges and rapid intensity changes in video frames. The Laplacian is a second-order derivative operator that's particularly effective at finding edge discontinuities and fine details. Often used in image sharpening, blob detection, and computer vision applications where edge definition is critical. Provides configurable kernel sizes and normalization options for different image types and analysis requirements. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class CVLaplaceBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

object

MediaBlock

CVLaplaceBlock

Implements

IMediaBlock

IDisposable

IMediaBlockInternals

Inherited Members

MediaBlock._isBuilt

MediaBlock._pipeline

MediaBlock._pipelineCtx

MediaBlock.GetPipelineContext()

MediaBlock.SetPipelineContext(BlockPipelineContext)

MediaBlock.SetPipeline(MediaBlocksPipeline)

MediaBlock.Context

MediaBlock.Name

MediaBlock.IsBuilt

MediaBlock.Owner

MediaBlock.Type

MediaBlock.ID

MediaBlock.Input

MediaBlock.Inputs

MediaBlock.Output

MediaBlock.Outputs

MediaBlock.HasInputs

MediaBlock.HasOutputs

MediaBlock.Build()

MediaBlock.CreateElements()

MediaBlock.AddElementsToPipeline()

MediaBlock.RemoveElementsFromPipeline()

MediaBlock.DeepCopy(string)

MediaBlock.Reset()

MediaBlock.ToYAMLBlock()

MediaBlock.ClearPads()

MediaBlock.Dispose(bool)

MediaBlock.Dispose()

object.Equals(object?)

object.Equals(object?, object?)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object?, object?)

object.ToString()

Extension Methods

MediaBlockExtensions.GetInputPadByType(IMediaBlock, MediaBlockPadMediaType)

MediaBlockExtensions.GetOutputPadByType(IMediaBlock, MediaBlockPadMediaType)

MediaBlockHelper.SendEndOfStream(MediaBlock)

MediaBlockHelper.SendEvent(MediaBlock, Event)

MediaBlockHelper.SetState(MediaBlock, State)

Constructors

CVLaplaceBlock(CVLaplaceSettings)

Initializes a new instance of the VisioForge.Core.MediaBlocks.OpenCV.CVLaplaceBlock class with the specified Laplacian edge detection settings.

public CVLaplaceBlock(CVLaplaceSettings settings)

Parameters

settings CVLaplaceSettings

The Laplacian configuration settings containing algorithm parameters.

Properties

Input

Gets the input pad for connecting video sources to be processed.

public override MediaBlockPad Input { get; }

Property Value

MediaBlockPad

Inputs

Gets all input pads for this Laplacian block.

public override MediaBlockPad[] Inputs { get; }

Property Value

MediaBlockPad[]

Output

Gets the output pad for connecting to downstream processing blocks.

public override MediaBlockPad Output { get; }

Property Value

MediaBlockPad

Outputs

Gets all output pads for this Laplacian block.

public override MediaBlockPad[] Outputs { get; }

Property Value

MediaBlockPad[]

Settings

Gets or sets the Laplacian configuration settings. Defines kernel parameters, normalization options, and edge detection sensitivity.

public CVLaplaceSettings Settings { get; set; }

Property Value

CVLaplaceSettings

Type

Gets the media block type identifier.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Constructs and initializes the OpenCV Laplacian element within the pipeline. This method creates the Laplacian filter with the specified edge detection settings, establishes input and output pads, and prepares the block for image analysis.

public override bool Build()

Returns

bool

true if the Laplacian element was successfully built and configured; false if initialization failed.

CleanUp()

Releases all resources and performs cleanup operations for this OpenCV Laplacian block. This method disposes of the Laplacian element and resets the build state.

public void CleanUp()

Dispose(bool)

Releases unmanaged and - optionally - managed resources.

protected override void Dispose(bool disposing)

Parameters

disposing bool

true to release both managed and unmanaged resources; false to release only unmanaged resources.

GetCore()

Gets the core BaseElement wrapper that provides additional functionality around the OpenCV Laplacian element.

public BaseElement GetCore()

Returns

BaseElement

The BaseElement wrapper instance that encapsulates the Laplacian functionality.

GetElement()

Gets the underlying GStreamer element that performs the Laplacian operation.

public Element GetElement()

Returns

Element

The GStreamer Element instance representing the OpenCV Laplacian filter.

IsAvailable()

Determines whether this media block is available. Correct NuGet SDK redist should be included into your project. Checks for OpenCV library availability and Laplacian operator support.

public static bool IsAvailable()

Returns

bool

true if OpenCV Laplacian functionality is available; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Associates this OpenCV Laplacian block with a pipeline and initializes its internal context. This method is called internally when the block is added to a pipeline.

void IMediaBlockInternals.SetContext(MediaBlocksPipeline pipeline)

Parameters

pipeline MediaBlocksPipeline

The MediaBlocksPipeline instance that will manage this block.

See Also

MediaBlock

IMediaBlockInternals

IDisposable