Class SuperpixelSLIC
- Namespace
- OpenCvSharp.XImgProc
- Assembly
- OpenCvSharp.dll
Class implementing the SLIC (Simple Linear Iterative Clustering) superpixels algorithm described in @cite Achanta2012.
public class SuperpixelSLIC : Algorithm, IDisposable- Inheritance
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SuperpixelSLIC
- Implements
- Inherited Members
Methods
- Create(InputArray, SLICType, int, float)
Initialize a SuperpixelSLIC object.
The function initializes a SuperpixelSLIC object for the input image. It sets the parameters of chosen superpixel algorithm, which are: region_size and ruler.It preallocate some buffers for future computing iterations over the given image.For enanched results it is recommended for color images to preprocess image with little gaussian blur using a small 3 x 3 kernel and additional conversion into CieLAB color space.An example of SLIC versus SLICO and MSLIC is ilustrated in the following picture.
- EnforceLabelConnectivity(int)
Enforce label connectivity.
The function merge component that is too small, assigning the previously found adjacent label to this component.Calling this function may change the final number of superpixels.
- GetLabelContourMask(OutputArray, bool)
Returns the mask of the superpixel segmentation stored in SuperpixelSLIC object. The function return the boundaries of the superpixel segmentation.
- GetLabels(OutputArray)
Returns the segmentation labeling of the image. Each label represents a superpixel, and each pixel is assigned to one superpixel label.
The function returns an image with the labels of the superpixel segmentation. The labels are in the range[0, getNumberOfSuperpixels()].
- GetNumberOfSuperpixels()
Calculates the actual amount of superpixels on a given segmentation computed and stored in SuperpixelSLIC object.
- Iterate(int)
Calculates the superpixel segmentation on a given image with the initialized parameters in the SuperpixelSLIC object.
This function can be called again without the need of initializing the algorithm with createSuperpixelSLIC(). This save the computational cost of allocating memory for all the structures of the algorithm.
The function computes the superpixels segmentation of an image with the parameters initialized with the function createSuperpixelSLIC(). The algorithms starts from a grid of superpixels and then refines the boundaries by proposing updates of edges boundaries.