Import image from MATLAB workspace

Library:
Computer Vision Toolbox / Sources

端口

Output

`Image`- 输出图像
matrix | 3-D array

Output image, returned as a matrix or 3-D array. If the imported image is binary or grayscale image, the output is a matrix of sizeM-经过-N. If the imported image is a color image, the output is a 3-D array of sizeM-经过-N-by-3。

Dependencies

To enable this port ,set theImage signalparameter toOne multidimensional signal.

`R`— Red color component of image
matrix

图像的红色组成部分，返回为M-经过-Nmatrix. The block returns this output if the input is a color image. If theImage signal参数设置为Separate color signals输入图像是二进制图像或灰度，块仅返回此端口

Dependencies

To enable this port, set theImage signalparameter toSeparate color signals.

`G`- 图像的绿色组成部分
matrix

绿色部分的形象,作为一个返回M-经过-Nmatrix. The block returns this output only if the input is a color image.

Dependencies

To enable this port, set theImage signalparameter toSeparate color signals.

`B`— Blue color component of image
matrix

图像的蓝色组成部分，返回为M-经过-Nmatrix. The block returns this output only if the input is a color image.

Dependencies

To enable this port ,set theImage signalparameter toSeparate color signals.

Parameters

expand all

主要的

`价值`— Image to be imported
`checker_board(10)`（默认）|vector | matrix | 3-D array |`MATLAB工作区变量`|`MATLAB功能`

Specify the image as a vector, matrix, 3-D array, function, or MATLAB workspace variable. The value parameter can be:

Vector — The value given to the价值parameter can be a row vector or column vector
3-D numeric array — The value given to the价值参数可以是3-D数组，它是使用MATLAB函数生成的
MATLAB工作区变量— The value given to the价值参数可以是变量名称，即Matlab Workspace变量
MATLAB函数 - 给出的值价值parameter can be a MATLAB function with specified input arguments to generate a numeric array

`Sample time`- 执行块的示例时间
`inf`（默认）|`正标量`|`Vector`

此参数指定块执行的示例时间。矢量长度必须为2，代表[周期，偏移]值，其中偏移应小于周期和非负值。给定INF的默认值，该块为灰度和二进制输出矩阵。如果输入图像分别为灰度或颜色图像，则输出为3-D或4-D。

The value of the added dimension is equal to地面((T_sim/T_s)+1)

T_simis the simulation time andT_s是示例时间，用于块执行。例如，如果输入图像为256 by-256矩阵，则模拟时间为10秒，样品时间设置为0.5秒，则输出为256 by-256 by-21阵列。

`Image signal`— Signal returned by block
`One multidimensional signal`（默认）|`Separate color signals`

Specify how the block returns the image read from the MATLAB workspace.

One multidimensional signal- 块有一个输出端口，Image，返回整个图像。
Separate color signals— The block has an output port for each color channel. Each port returns a single color channel of the image.

`Output port labels`- 输出端口标签
`r | g | b`（默认）|port names

Specify labels for the output ports. Each label can be any value. Use the vertical bar character, |, as a delimiter to name all the output ports.

Dependencies

要启用此参数，请设置Image signalparameter toSeparate color signals.

数据类型

`输出数据类型`— Data type of the output image
`Inherit from Value`（默认）|`double`|`single`|`int8`|`uint8`|`INT16`|`UINT16`|`INT32`|`uint32`|`布尔`|`Fixed-point`|`User-defined`|`通过背部传播继承`| ...

指定输出图像的数据类型。如果导入图像的数据类型，则在价值参数，不同于输出数据类型parameter, the block scales the pixel values, adds an offset to the pixel values so that they are in the dynamic range of the new data type, or does both. Double- and single-precision floating-point pixel values must be in the range of [0, 1].

`Signed`— Signed fixed-point data type
`上`（默认）|`离开`

如果输入图像数据类型已签名定义点，请选择此参数。

Dependencies

要启用此参数，请设置输出数据类型parameter toFixed-point.

`Word length`— Bits in fixed-point data type
`16`（默认）|正标量

指定定点输出数据类型的单词长度。该值应小于32。

Dependencies

要启用此参数，请设置输出数据类型parameter toFixed-point.

`Set fraction length in output to`— Scaling factor of the fixed-point
`User-defined`（默认）|`Best precision`

Specify the scaling factor of the fixed-point output by either of the following two methods:

Best precision— The output scaling automatically such that the output signal has the best possible precision.
User-defined- 输出缩放分数长度parameter.

Dependencies

要启用此参数，请设置输出数据类型parameter toFixed-point.

`Fractional length`— Fractional bits
`15`（默认）|`scalar`

Specify the number of bits to the right of the decimal point.

Dependencies

要启用此参数，请设置输出数据类型parameter toFixed-point, and set theSet fraction length in outputparameter toUser-defined.

`用户定义的数据类型`- 用户定义的固定点数据类型
`sfix(16)`（默认）|`user-defined fixed-point data type`

Specify any built-in or fixed-point data type. You can specify fixed-point data types using thefixdt(Simulink)function.

Dependencies

要启用此参数，请设置输出数据类型parameter toUser-defined.

Model Examples

Import an image from MATLAB to Simulink workspace usingImage从工作区block.

打开脚本

块特征

Data Types	`Boolean`\|`double`\|`固定点`\|`整数`\|`single`
Multidimensional Signals	`不`
Variable-Size Signals	`不`

Image From Workspace

描述

端口

Output

`Image`- 输出图像
matrix | 3-D array

Dependencies

`R`— Red color component of image
matrix

Dependencies

`G`- 图像的绿色组成部分
matrix

Dependencies

`B`— Blue color component of image
matrix

Dependencies

Parameters

`价值`— Image to be imported
`checker_board(10)`（默认）|vector | matrix | 3-D array |`MATLAB工作区变量`|`MATLAB功能`

`Sample time`- 执行块的示例时间
`inf`（默认）|`正标量`|`Vector`

`Image signal`— Signal returned by block
`One multidimensional signal`（默认）|`Separate color signals`

`Output port labels`- 输出端口标签
`r | g | b`（默认）|port names

Dependencies

`输出数据类型`— Data type of the output image
`Inherit from Value`（默认）|`double`|`single`|`int8`|`uint8`|`INT16`|`UINT16`|`INT32`|`uint32`|`布尔`|`Fixed-point`|`User-defined`|`通过背部传播继承`| ...

`Signed`— Signed fixed-point data type
`上`（默认）|`离开`

Dependencies

`Word length`— Bits in fixed-point data type
`16`（默认）|正标量

Dependencies

`Set fraction length in output to`— Scaling factor of the fixed-point
`User-defined`（默认）|`Best precision`

Dependencies

`Fractional length`— Fractional bits
`15`（默认）|`scalar`

Dependencies

`用户定义的数据类型`- 用户定义的固定点数据类型
`sfix(16)`（默认）|`user-defined fixed-point data type`

Dependencies

Model Examples