Dominant Color

Class: DominantColorBlockV1

Source: inference.core.workflows.core_steps.classical_cv.dominant_color.v1.DominantColorBlockV1

Extract the dominant color from an input image using K-means clustering.

This block identifies the most prevalent color in an image. Processing time is dependant on color complexity and image size. Most images should complete in under half a second.

The output is a list of RGB values representing the dominant color, making it easy to use in further processing or visualization tasks.

Note: The block operates on the assumption that the input image is in RGB format.

Type identifier

Use the following identifier in step "type" field: roboflow_core/dominant_color@v1to add the block as as step in your workflow.

Properties

Name	Type	Description	Refs
name	str	Enter a unique identifier for this step..	❌
color_clusters	int	Number of dominant colors to identify. Higher values increase precision but may slow processing..	✅
max_iterations	int	Max number of iterations to perform. Higher values increase precision but may slow processing..	✅
target_size	int	Sets target for the smallest dimension of the downsampled image in pixels. Lower values increase speed but may reduce precision..	✅

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 Dominant Color in version v1.

• inputs: Camera Calibration, Image Preprocessing, Image Contours, Line Counter Visualization, Halo Visualization, Line Counter, Corner Visualization, Stability AI Image Generation, Model Comparison Visualization, Pixel Color Count, Keypoint Visualization, Crop Visualization, Depth Estimation, SIFT, Image Blur, Stitch Images, Blur Visualization, Image Convert Grayscale, Background Color Visualization, Bounding Box Visualization, Image Slicer, Dynamic Crop, Distance Measurement, Line Counter, Perspective Correction, Circle Visualization, Triangle Visualization, Dot Visualization, SIFT Comparison, Template Matching, Mask Visualization, Image Slicer, Ellipse Visualization, Color Visualization, Stability AI Inpainting, Classification Label Visualization, Absolute Static Crop, Image Threshold, Pixelate Visualization, Trace Visualization, Camera Focus, Label Visualization, Grid Visualization, Stability AI Outpainting, Polygon Visualization, SIFT Comparison, Relative Static Crop, Reference Path Visualization, Polygon Zone Visualization
• outputs: Pixel Color Count, Dynamic Crop

Input and Output Bindings

The available connections depend on its binding kinds. Check what binding kinds Dominant Color in version v1 has.

Bindings

• input

  • image (image): The input image for this step..
  • color_clusters (integer): Number of dominant colors to identify. Higher values increase precision but may slow processing..
  • max_iterations (integer): Max number of iterations to perform. Higher values increase precision but may slow processing..
  • target_size (integer): Sets target for the smallest dimension of the downsampled image in pixels. Lower values increase speed but may reduce precision..

• output

  • rgb_color (rgb_color): RGB color.

Example JSON definition of step Dominant Color in version v1

{
    "name": "<your_step_name_here>",
    "type": "roboflow_core/dominant_color@v1",
    "image": "$inputs.image",
    "color_clusters": 4,
    "max_iterations": 100,
    "target_size": 100
}