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:
Blur Visualization
,Triangle Visualization
,Anthropic Claude
,Trace Visualization
,Label Visualization
,LMM
,Distance Measurement
,Model Monitoring Inference Aggregator
,Roboflow Dataset Upload
,Pixel Color Count
,Absolute Static Crop
,Image Preprocessing
,Relative Static Crop
,Image Threshold
,Reference Path Visualization
,Slack Notification
,Stability AI Outpainting
,SIFT
,Roboflow Dataset Upload
,Identify Outliers
,Google Vision OCR
,Dimension Collapse
,Stability AI Inpainting
,Background Color Visualization
,CSV Formatter
,Circle Visualization
,Image Blur
,Keypoint Visualization
,VLM as Detector
,SIFT Comparison
,Google Gemini
,Image Convert Grayscale
,PTZ Tracking (ONVIF)
.md),OpenAI
,Line Counter Visualization
,Model Comparison Visualization
,Dynamic Zone
,JSON Parser
,Roboflow Custom Metadata
,Image Slicer
,Stitch OCR Detections
,Crop Visualization
,Corner Visualization
,VLM as Classifier
,Line Counter
,Multi-Label Classification Model
,Pixelate Visualization
,Local File Sink
,Image Slicer
,Mask Visualization
,VLM as Classifier
,Clip Comparison
,Color Visualization
,Polygon Visualization
,Email Notification
,Keypoint Detection Model
,Size Measurement
,Gaze Detection
,Perspective Correction
,Detections Consensus
,Camera Calibration
,OpenAI
,Bounding Box Visualization
,Buffer
,Camera Focus
,CogVLM
,Instance Segmentation Model
,Twilio SMS Notification
,OpenAI
,Dynamic Crop
,Depth Estimation
,Halo Visualization
,Florence-2 Model
,Dot Visualization
,Template Matching
,Classification Label Visualization
,Webhook Sink
,SIFT Comparison
,Stability AI Image Generation
,VLM as Detector
,Florence-2 Model
,LMM For Classification
,Ellipse Visualization
,Image Contours
,Llama 3.2 Vision
,Line Counter
,Clip Comparison
,Single-Label Classification Model
,Identify Changes
,Grid Visualization
,Stitch Images
,OCR Model
,Cosine Similarity
,Object Detection Model
,Polygon Zone Visualization
- outputs:
Blur Visualization
,Anthropic Claude
,Triangle Visualization
,Dominant Color
,YOLO-World Model
,Trace Visualization
,Label Visualization
,LMM
,Roboflow Dataset Upload
,Time in Zone
,Pixel Color Count
,Absolute Static Crop
,Image Preprocessing
,Keypoint Detection Model
,Relative Static Crop
,Image Threshold
,Reference Path Visualization
,Segment Anything 2 Model
,QR Code Detection
,Stability AI Outpainting
,SIFT
,Instance Segmentation Model
,Roboflow Dataset Upload
,Google Vision OCR
,Stability AI Inpainting
,Background Color Visualization
,Detections Stabilizer
,Keypoint Visualization
,Circle Visualization
,Image Blur
,VLM as Detector
,Google Gemini
,OpenAI
,Image Convert Grayscale
,Line Counter Visualization
,Multi-Label Classification Model
,Model Comparison Visualization
,Perception Encoder Embedding Model
,Image Slicer
,Crop Visualization
,Corner Visualization
,VLM as Classifier
,Multi-Label Classification Model
,Pixelate Visualization
,Image Slicer
,Mask Visualization
,VLM as Classifier
,Clip Comparison
,Color Visualization
,Qwen2.5-VL
,Polygon Visualization
,Keypoint Detection Model
,Single-Label Classification Model
,Gaze Detection
,Perspective Correction
,Moondream2
,Camera Calibration
,OpenAI
,Bounding Box Visualization
,Barcode Detection
,Buffer
,Camera Focus
,SmolVLM2
,CogVLM
,Instance Segmentation Model
,Detections Stitch
,OpenAI
,Dynamic Crop
,Halo Visualization
,Depth Estimation
,Florence-2 Model
,Dot Visualization
,Template Matching
,Classification Label Visualization
,SIFT Comparison
,Stability AI Image Generation
,Florence-2 Model
,VLM as Detector
,LMM For Classification
,Object Detection Model
,Ellipse Visualization
,Llama 3.2 Vision
,Image Contours
,Clip Comparison
,Single-Label Classification Model
,Stitch Images
,OCR Model
,CLIP Embedding Model
,Byte Tracker
,Object Detection Model
,Polygon Zone Visualization
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
}