输入图像必须是二进制值的向量或矩阵，每个元素代表图像的像素。该块将像素分类为0作为背景像素，搜索像素内的连接组件，值为1.

Data Types:Boolean

Labeled objects in the input image, returned as a vector or matrix of nonnegative integers. The elements of the output vector or matrix labeled0represent the background, the elements labeled1代表第一个对象，标记的元素2represent the second object, and so on. The size of this output matches the size of theBWinput.

Dependencies

To enable this port, set theOutputparameter to either标签矩阵或者标签矩阵和number of labels.

Data Types:uint8|UINT16|uint32

Number of labeled objects, returned as a scalar.

Dependencies

To enable this port, set theOutputparameter to eitherNumber of labels或者标签矩阵和number of labels.

Data Types:uint8|UINT16|uint32

Specify how the block defines which pixels are connected to each other. If you want to connect adjacent pixels in only the horizontal and vertical directions, select4. If you want to connect adjacent pixels in the horizontal, vertical, and diagonal directions, select8. These figures show how the block defines a connected component for 4-connected and 8-connected pixels. The block considers the white pixels marked by black circles to be connected to each other.

将块输出指定为以下选项之一：

Specify the data type of the outputs at theLabel和Countports. When you specify this parameter asAutomatic, the block calculates the maximum number of objects that can fit inside the image based on the image size and the specified connectivity. Using this calculation, it chooses the output data type with the minimum value that guarantees unique region labels.

Use this parameter to specify the behavior of the block when the block finds more objects than the maximum possible value the output data type can represent. The block labels the remaining objects with the value determined by one of these options:

Dependencies

要启用此参数，请设置Output data typeparameter to eitheruint8或者UINT16.