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:
VLM As Classifier,MoonshotAI Kimi,Stability AI Image Generation,Trace Visualization,Image Stack,Anthropic Claude,Icon Visualization,SIFT Comparison,Morphological Transformation,Color Visualization,LMM For Classification,Perspective Correction,Corner Visualization,Clip Comparison,Roboflow Custom Metadata,Halo Visualization,Dynamic Zone,Qwen-VL,Email Notification,Halo Visualization,Google Gemma,Background Color Visualization,Ellipse Visualization,Email Notification,Twilio SMS/MMS Notification,Text Display,Polygon Visualization,Crop Visualization,Absolute Static Crop,Image Preprocessing,Model Monitoring Inference Aggregator,Relative Static Crop,OpenRouter,OpenAI,PLC ModbusTCP,Florence-2 Model,OpenAI,Heatmap Visualization,Motion Detection,OCR Model,Blur Visualization,Dimension Collapse,Depth Estimation,Instance Segmentation Model,Stability AI Outpainting,Anthropic Claude,Google Gemini,Clip Comparison,Google Gemini,PLC EthernetIP,Background Subtraction,Keypoint Visualization,Buffer,CSV Formatter,Webhook Sink,Stitch Images,Florence-2 Model,Current Time,Detections List Roll-Up,Contrast Equalization,OpenAI,VLM As Detector,Google Gemini,Triangle Visualization,Slack Notification,SIFT,Local File Sink,Cosine Similarity,Image Contours,Keypoint Detection Model,GLM-OCR,Roboflow Asset Library Attributes,Image Slicer,Polygon Zone Visualization,Contrast Enhancement,Google Gemma API,Stitch OCR Detections,Image Threshold,Line Counter Visualization,Camera Calibration,QR Code Generator,S3 Sink,Microsoft SQL Server Sink,Google Vision OCR,Twilio SMS Notification,Image Blur,Morphological Transformation,Camera Focus,Size Measurement,Roboflow Vision Events,Stability AI Inpainting,Classification Label Visualization,Stitch OCR Detections,Event Writer,Grid Visualization,Qwen3.5-VL,Mask Visualization,Llama 3.2 Vision,Reference Path Visualization,Image Slicer,Label Visualization,OPC UA Writer Sink,Dot Visualization,Identify Changes,Dynamic Crop,Circle Visualization,Llama 3.2 Vision,Camera Focus,Gaze Detection,MoonshotAI Kimi,OpenAI-Compatible LLM,Single-Label Classification Model,CogVLM,Qwen 3.6 API,Bounding Box Visualization,Multi-Label Classification Model,LMM,OpenAI,Image Convert Grayscale,Roboflow Visual Search,EasyOCR,Roboflow Dataset Upload,Pixelate Visualization,Roboflow Dataset Upload,PLC Writer,Qwen 3.5 API,Anthropic Claude,Object Detection Model,MQTT Writer,Polygon Visualization,Model Comparison Visualization - outputs:
Line Counter,Time in Zone,Path Deviation,Trace Visualization,Distance Measurement,Detection Offset,ByteTrack Tracker,Detection Event Log,Per-Class Confidence Filter,Icon Visualization,Detections Transformation,Color Visualization,Perspective Correction,Corner Visualization,Mask Area Measurement,Roboflow Custom Metadata,Detections Merge,Halo Visualization,Dynamic Zone,Detections Combine,Roboflow Vision Events,Size Measurement,Halo Visualization,Stability AI Inpainting,PTZ Tracking (ONVIF),Bounding Rectangle,SAM2 Video Tracker,Event Writer,Mask Visualization,Byte Tracker,Background Color Visualization,Ellipse Visualization,Velocity,Label Visualization,Byte Tracker,Dot Visualization,Polygon Visualization,Crop Visualization,Dynamic Crop,Path Deviation,Circle Visualization,Detections Stitch,BoT-SORT Tracker,Model Monitoring Inference Aggregator,Camera Focus,Segment Anything 2 Model,Florence-2 Model,Heatmap Visualization,Detections Filter,Overlap Analysis,Blur Visualization,SAM 3 Interactive,Detections Consensus,Byte Tracker,Bounding Box Visualization,Florence-2 Model,Detections List Roll-Up,Mask Edge Snap,Line Counter,Triangle Visualization,Overlap Filter,Roboflow Dataset Upload,Time in Zone,Detections Classes Replacement,Pixelate Visualization,Roboflow Dataset Upload,Detections Stabilizer,SORT Tracker,Track Class Lock,Time in Zone,Polygon Visualization,OC-SORT Tracker,Model Comparison Visualization
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[list_of_values,string]): 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
}