ROS Write Image, ROS 2 Write Image

Write image data to a ROS or ROS 2 message

Library:
ROS Toolbox / ROS
ROS Toolbox / ROS 2

Description

The Write Image block writes image data to a ROS or ROS 2 image message. You can specify the encoding for the output image message. Use the ROS Publish or ROS 2 Publish block to publish the output image message to an active topic on the network.

Ports

Input

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`Image` — Input image signal
M-by-N-by-3 matrix | M-by-N matrix

Image pixel data, specified as an M-by-N-by-3 matrix for color images, and an M-by-N matrix for grayscale images.

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16

`AlphaChannel` — Alpha channel for input image
M-by-N matrix

Alpha channel for image, specified as an M-by-N matrix. This matrix is the same height and width as the image input. Each element has a value in the range [0,1] that indicates the opacity of the corresponding pixel, with a value of 0 being completely transparent.

Dependencies

The selected image encoding must support alpha channel.

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16

Output

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`Msg` — ROS or ROS 2 image message
nonvirtual bus

ROS or ROS 2 image message, returned as a nonvirtual bus. You can use the ROS Publish or ROS 2 Publish block to publish the message to an active ROS or ROS 2 network respectively.

Data Types: bus