Seg Preview¶
Class: SegPreviewBlockV1
Source: inference.core.workflows.core_steps.models.foundation.seg_preview.v1.SegPreviewBlockV1
Seg Preview
Type identifier¶
Use the following identifier in step "type" field: roboflow_core/seg-preview@v1to add the block as
as step in your workflow.
Properties¶
| Name | Type | Description | Refs |
|---|---|---|---|
name |
str |
Enter a unique identifier for this step.. | ❌ |
class_names |
Union[List[str], str] |
List of classes to recognise. | ✅ |
threshold |
float |
Threshold for predicted mask scores. | ✅ |
The Refs column marks possibility to parametrise the property with dynamic values available
in workflow runtime. See Bindings for more info.
Runtime compatibility¶
-
requires_internet— air-gapped / offline deployments - This block depends on a service that is not reachable from fully offline / air-gapped deployments.
-
hard— runtimeself_hosted_cpu,self_hosted_gpu,inference_pipeline - Seg Preview calls the Roboflow-internal API_BASE_URL/inferenceproxy/seg-preview endpoint, which is only reachable from Roboflow-hosted runtimes (HOSTED_SERVERLESS, DEDICATED_DEPLOYMENT). Self-hosted deployments cannot run this block.
Available Connections¶
Compatible Blocks
Check what blocks you can connect to Seg Preview in version v1.
- inputs:
Image Preprocessing,Anthropic Claude,Image Slicer,Dynamic Crop,Bounding Box Visualization,Absolute Static Crop,SIFT Comparison,Stitch Images,Stitch OCR Detections,OpenAI,Email Notification,Stability AI Inpainting,Cosine Similarity,EasyOCR,Llama 3.2 Vision,Florence-2 Model,Gaze Detection,Roboflow Custom Metadata,Dynamic Zone,Auto Rotate on Edges,Keypoint Detection Model,Stability AI Outpainting,Model Comparison Visualization,Slack Notification,Line Counter Visualization,Camera Calibration,Single-Label Classification Model,Clip Comparison,VLM As Detector,CogVLM,Camera Focus,Corner Visualization,Ellipse Visualization,PP-OCR,Morphological Transformation,Detections List Roll-Up,Anthropic Claude,Roboflow Visual Search,Color Visualization,Instance Segmentation Model,OpenAI,Triangle Visualization,Image Contours,Image Threshold,Current Time,Roboflow Visual Search Classifier,QR Code Generator,OpenAI-Compatible LLM,Florence-2 Model,Polygon Zone Visualization,Stitch OCR Detections,Roboflow Asset Library Attributes,GeoTag Detection,Microsoft SQL Server Sink,VLM As Classifier,Camera Focus,Image Convert Grayscale,Label Visualization,Llama 3.2 Vision,Stability AI Image Generation,MQTT Writer,Roboflow Dataset Upload,Local File Sink,Google Gemini,Event Writer,Depth Estimation,Google Gemini,OpenAI,Trace Visualization,Twilio SMS Notification,PLC EthernetIP,LMM For Classification,Object Detection Model,Webhook Sink,Halo Visualization,Buffer,Mask Visualization,Pixelate Visualization,Twilio SMS/MMS Notification,MoonshotAI Kimi,Dot Visualization,Multi-Label Classification Model,Image Stack,OPC UA Writer Sink,Google Gemini,Keypoint Visualization,Dimension Collapse,LMM,Image Slicer,OCR Model,Circle Visualization,Contrast Enhancement,Relative Static Crop,Morphological Transformation,Email Notification,Halo Visualization,Clip Comparison,Cosmos 3,Polygon Visualization,Qwen-VL,PLC Writer,Google Gemma,Crop Visualization,Qwen 3.5 API,Model Monitoring Inference Aggregator,Size Measurement,Icon Visualization,Heatmap Visualization,Motion Detection,Google Gemma API,CSV Formatter,Image Blur,Background Color Visualization,Grid Visualization,Blur Visualization,GLM-OCR,Anthropic Claude,Reference Path Visualization,Classification Label Visualization,Google Vision OCR,Perspective Correction,Background Subtraction,Polygon Visualization,Contrast Equalization,SIFT,Qwen 3.6 API,Text Display,MoonshotAI Kimi,OpenRouter,Qwen3.5-VL,Roboflow Vision Events,Identify Changes,OpenAI,PLC ModbusTCP,S3 Sink,Roboflow Dataset Upload - outputs:
Roboflow Dataset Upload,Trace Visualization,SAM 3 Interactive,Time in Zone,Dynamic Crop,Detections Filter,Mask Area Measurement,BoT-SORT Tracker,Bounding Box Visualization,Mask Edge Snap,Velocity,Halo Visualization,Mask Visualization,Path Deviation,Pixelate Visualization,Dot Visualization,Stability AI Inpainting,Frame Delay,Distance Measurement,OC-SORT Tracker,Track Class Lock,Florence-2 Model,Roboflow Custom Metadata,Dynamic Zone,Detections Combine,Detections Transformation,PTZ Tracking (ONVIF),Time in Zone,Byte Tracker,Circle Visualization,Model Comparison Visualization,Detections Classes Replacement,Byte Tracker,SAM2 Video Tracker,ByteTrack Tracker,Per-Class Confidence Filter,Halo Visualization,Polygon Visualization,SORT Tracker,Ellipse Visualization,Corner Visualization,Camera Focus,Crop Visualization,Model Monitoring Inference Aggregator,Detections List Roll-Up,Size Measurement,Icon Visualization,Heatmap Visualization,Color Visualization,Detections Consensus,Overlap Analysis,Time in Zone,Detection Event Log,Detections Stitch,Background Color Visualization,Segment Anything 2 Model,Triangle Visualization,Detections Stabilizer,Blur Visualization,Detections Merge,Florence-2 Model,Path Deviation,GeoTag Detection,Perspective Correction,Polygon Visualization,Label Visualization,Detection Offset,Line Counter,Roboflow Dataset Upload,Roboflow Vision Events,Bounding Rectangle,Overlap Filter,Event Writer,Line Counter,Byte Tracker
Input and Output Bindings¶
The available connections depend on its binding kinds. Check what binding kinds
Seg Preview in version v1 has.
Bindings
-
input
images(image): The image to infer on..class_names(Union[string,list_of_values]): List of classes to recognise.threshold(float): Threshold for predicted mask scores.
-
output
predictions(instance_segmentation_prediction): Prediction with detected bounding boxes and segmentation masks in form of sv.Detections(...) object.
Example JSON definition of step Seg Preview in version v1
{
"name": "<your_step_name_here>",
"type": "roboflow_core/seg-preview@v1",
"images": "$inputs.image",
"class_names": [
"car",
"person"
],
"threshold": 0.3
}