Image
Display raw and compressed images, superimposed with annotations.
Select an image topic to display from the dropdown.
Supported encodings
| Raw images | Compressed images |
|---|---|
8UC1 | webp |
8UC3 | jpeg |
16UC1 | png |
32FC1 | |
bayer_bggr8 | |
bayer_gbrg8 | |
bayer_grbg8 | |
bayer_rggb8 | |
bgr8 | |
bgra8 | |
mono8 | |
mono16 | |
rgb8 | |
rgba8 | |
uyuv | |
yuyv | |
yuv422 (deprecated, use uyuv) |
Annotations
If your robot is publishing CameraCalibration messages for the selected camera, you can go to the Markers section of the panel to toggle on any ImageAnnotations topic. Any given image annotation topic will overlay a combination of CircleAnnotations and PointsAnnotations onto your selected camera image.
For unrectified images, the image markers will be transformed based on the Camera Calibration.
When zooming in or out on an image, image markers will re-render to remain sharp.
User interactions
Right-click on the image to download it as a PNG file.
Click any displayed image marker to view its details.
Use the available zoom controls to adjust the image's scale.
Scroll to zoom, and drag to pan – by default, the maximum zoom will be set to 300%, but this value can be adjusted in the panel settings.
Settings
| General | |
|---|---|
| Topic | Camera image topic to display |
| Transform markers | Displays transform markers in the context of the image |
| Synchronize timestamps | Synchronizes messages from the camera topic and selected markers topics |
| Bilinear smoothing | Resamples images to minimize visual distortion when resizing, using bilinear interpolation |
| Flip horizontal | Flip image horizontally over a vertical axis |
| Flip vertical | Flip image vertically over a horizontal axis |
| Rotation | Rotate image by 90°, 180°, or 270° |
| Min (depth images) | Minimum scaling value for depth images (default: 0); currently only used for mono16 and 16UC1 images |
| Max (depth images) | Maximum scaling value for depth images (default: 10000); currently only used for mono16 and 16UC1 images |
| Markers |
|---|
| Image annotation markers to toggle on and off |
Supported messages
To use this panel, your data source must provide messages conforming to one of the following supported schemas.
RawImage
| framework | schema |
|---|---|
| ROS 1 | sensor_msgs/Image |
| ROS 2 | sensor_msgs/msg/Image |
| Custom | foxglove.RawImage |
CompressedImage
| framework | schema |
|---|---|
| ROS 1 | sensor_msgs/CompressedImage |
| ROS 2 | sensor_msgs/msg/CompressedImage |
| Custom | foxglove.CompressedImage |
CameraCalibration
NOTE: Studio currently only supports plumb_bob and rational_polynomial for the distortion_model field value.
| framework | schema |
|---|---|
| ROS 1 | sensor_msgs/CameraInfo |
| ROS 2 | sensor_msgs/msg/CameraInfo |
| Custom | foxglove.CameraCalibration |
ImageAnnotation
| framework | schema |
|---|---|
| ROS 1 | visualization_msgs/ImageMarker |
| ROS 2 | visualization_msgs/msg/ImageMarker |
ImageAnnotations
| framework | schema |
|---|---|
| ROS 1 | foxglove_msgs/ImageMarkerArray |
| Custom | foxglove.ImageAnnotations |