Line Counter Visualization¶
Class: LineCounterZoneVisualizationBlockV1
Source: inference.core.workflows.core_steps.visualizations.line_zone.v1.LineCounterZoneVisualizationBlockV1
The LineCounterZoneVisualization
block draws line
in an image with a specified color and opacity.
Please note: line zone will be drawn on top of image passed to this block,
this block should be placed before other visualization blocks in the workflow.
Type identifier¶
Use the following identifier in step "type"
field: roboflow_core/line_counter_visualization@v1
to add the block as
as step in your workflow.
Properties¶
Name | Type | Description | Refs |
---|---|---|---|
name |
str |
Enter a unique identifier for this step.. | ❌ |
copy_image |
bool |
Enable this option to create a copy of the input image for visualization, preserving the original. Use this when stacking multiple visualizations.. | ✅ |
zone |
List[Any] |
Line in the format [[x1, y1], [x2, y2]] consisting of exactly two points.. | ✅ |
color |
str |
Color of the zone.. | ✅ |
thickness |
int |
Thickness of the lines in pixels.. | ✅ |
text_thickness |
int |
Thickness of the text in pixels.. | ✅ |
text_scale |
float |
Scale of the text.. | ✅ |
count_in |
int |
Reference to the number of objects that crossed into the line zone.. | ✅ |
count_out |
int |
Reference to the number of objects that crossed out of the line zone.. | ✅ |
opacity |
float |
Transparency of the Mask overlay.. | ✅ |
The Refs column marks possibility to parametrise the property with dynamic values available
in workflow
runtime. See Bindings for more info.
Available Connections¶
Compatible Blocks
Check what blocks you can connect to Line Counter Visualization
in version v1
.
- inputs:
Background Color Visualization
,VLM as Classifier
,Trace Visualization
,Google Vision OCR
,OpenAI
,Dot Visualization
,Classification Label Visualization
,Stitch Images
,Model Monitoring Inference Aggregator
,Line Counter
,Line Counter Visualization
,SIFT Comparison
,Cosine Similarity
,Email Notification
,Anthropic Claude
,Dimension Collapse
,LMM
,Pixel Color Count
,Multi-Label Classification Model
,Model Comparison Visualization
,Line Counter
,OCR Model
,Absolute Static Crop
,Stability AI Image Generation
,Image Contours
,Dynamic Crop
,CSV Formatter
,LMM For Classification
,JSON Parser
,Image Slicer
,Gaze Detection
,CogVLM
,Object Detection Model
,Image Preprocessing
,Circle Visualization
,Distance Measurement
,Florence-2 Model
,VLM as Detector
,Keypoint Detection Model
,PTZ Tracking (ONVIF)
.md),Relative Static Crop
,Image Slicer
,Slack Notification
,Label Visualization
,Roboflow Dataset Upload
,Image Threshold
,Reference Path Visualization
,Depth Estimation
,Bounding Box Visualization
,Dynamic Zone
,Icon Visualization
,Roboflow Custom Metadata
,Local File Sink
,Polygon Visualization
,Florence-2 Model
,Identify Outliers
,VLM as Classifier
,Ellipse Visualization
,Pixelate Visualization
,SIFT
,Buffer
,Grid Visualization
,Camera Focus
,Detections Consensus
,Clip Comparison
,Single-Label Classification Model
,Image Blur
,Keypoint Visualization
,Polygon Zone Visualization
,Template Matching
,Size Measurement
,Crop Visualization
,Corner Visualization
,Triangle Visualization
,Stitch OCR Detections
,Twilio SMS Notification
,Clip Comparison
,Stability AI Inpainting
,Webhook Sink
,OpenAI
,QR Code Generator
,OpenAI
,Stability AI Outpainting
,Camera Calibration
,Image Convert Grayscale
,Llama 3.2 Vision
,SIFT Comparison
,Roboflow Dataset Upload
,Blur Visualization
,VLM as Detector
,Identify Changes
,Color Visualization
,Instance Segmentation Model
,Halo Visualization
,Google Gemini
,Perspective Correction
,Mask Visualization
- outputs:
Background Color Visualization
,Perception Encoder Embedding Model
,VLM as Classifier
,Trace Visualization
,Google Vision OCR
,OpenAI
,Dot Visualization
,Classification Label Visualization
,Stitch Images
,Line Counter Visualization
,SIFT Comparison
,Anthropic Claude
,Pixel Color Count
,LMM
,Qwen2.5-VL
,Multi-Label Classification Model
,Model Comparison Visualization
,OCR Model
,Stability AI Image Generation
,Object Detection Model
,Absolute Static Crop
,Image Contours
,Dynamic Crop
,LMM For Classification
,Image Slicer
,Gaze Detection
,CogVLM
,QR Code Detection
,Object Detection Model
,Image Preprocessing
,Circle Visualization
,CLIP Embedding Model
,Florence-2 Model
,VLM as Detector
,Keypoint Detection Model
,Keypoint Detection Model
,Relative Static Crop
,Image Slicer
,YOLO-World Model
,Moondream2
,Label Visualization
,Roboflow Dataset Upload
,Image Threshold
,Reference Path Visualization
,Depth Estimation
,Bounding Box Visualization
,Icon Visualization
,Polygon Visualization
,Florence-2 Model
,Byte Tracker
,Dominant Color
,VLM as Classifier
,Buffer
,Pixelate Visualization
,SIFT
,Ellipse Visualization
,Camera Focus
,Instance Segmentation Model
,Clip Comparison
,Single-Label Classification Model
,Image Blur
,Keypoint Visualization
,Polygon Zone Visualization
,Template Matching
,Crop Visualization
,Corner Visualization
,Detections Stabilizer
,Triangle Visualization
,Clip Comparison
,Stability AI Inpainting
,OpenAI
,OpenAI
,Stability AI Outpainting
,Camera Calibration
,Detections Stitch
,Multi-Label Classification Model
,Image Convert Grayscale
,Single-Label Classification Model
,Llama 3.2 Vision
,Roboflow Dataset Upload
,Segment Anything 2 Model
,Blur Visualization
,VLM as Detector
,Color Visualization
,Instance Segmentation Model
,SmolVLM2
,Barcode Detection
,Halo Visualization
,Google Gemini
,Mask Visualization
,Perspective Correction
,Time in Zone
Input and Output Bindings¶
The available connections depend on its binding kinds. Check what binding kinds
Line Counter Visualization
in version v1
has.
Bindings
-
input
image
(image
): The image to visualize on..copy_image
(boolean
): Enable this option to create a copy of the input image for visualization, preserving the original. Use this when stacking multiple visualizations..zone
(list_of_values
): Line in the format [[x1, y1], [x2, y2]] consisting of exactly two points..color
(string
): Color of the zone..thickness
(integer
): Thickness of the lines in pixels..text_thickness
(integer
): Thickness of the text in pixels..text_scale
(float
): Scale of the text..count_in
(integer
): Reference to the number of objects that crossed into the line zone..count_out
(integer
): Reference to the number of objects that crossed out of the line zone..opacity
(float_zero_to_one
): Transparency of the Mask overlay..
-
output
image
(image
): Image in workflows.
Example JSON definition of step Line Counter Visualization
in version v1
{
"name": "<your_step_name_here>",
"type": "roboflow_core/line_counter_visualization@v1",
"image": "$inputs.image",
"copy_image": true,
"zone": [
[
0,
50
],
[
500,
50
]
],
"color": "WHITE",
"thickness": 2,
"text_thickness": 1,
"text_scale": 1.0,
"count_in": "$steps.line_counter.count_in",
"count_out": "$steps.line_counter.count_out",
"opacity": 0.3
}