Color Clustering

Color Clustering determines the dominant colors in an image or video frame by clustering similar colors. The task returns the color at the center of each cluster, and the proportion of the pixels that belong to each cluster. If you configure a color dictionary, the task clusters colors around the colors that are defined in the dictionary, and returns a name (such as "light blue" or "red") for each cluster.

This section describes the parameters that you can use to configure color clustering.

Configuration Parameter Description
ColorDictionary The path to a dictionary file that associates names with RGB color values.
ColorSpace The color space in which the results of analysis are provided.
ColorThreshold Discards colors that do not make up a significant proportion of the frame.
CombineNamedColors A Boolean value that specifies whether to combine clusters that have the same color name.
Input The image track to process.
Region Specifies a region of the frame to process, instead of the entire frame.
RegionUnit Specifies the units used by the Region parameter.
RestrictToInputRegion Specifies whether to analyze a region of the input image or video frame that is specified in the input record, instead of the entire image.
SampleInterval The interval at which frames are selected to be analyzed.
Type The analysis engine to use. Set this parameter to ColorCluster.

Output Tracks

Output track Type Description Output1This column indicates whether the information contained in the track is included by default in the output created by an output task (when you don't set the Input parameter for the output task).
ClusteredImage ColorClusterImage Contains the source image, containing only colors that match the center of a color cluster, and cropped to the analyzed region. If the analyzed region is not rectangular any pixels outside the region are transparent (or black if you use an image format that does not support transparency). False
Result ColorClusterResult Contains a record for each analyzed frame. Each record contains information about the colors that are present in the image. True

ColorClusterResult

Field name Type Description
id UUIDData A universally unique identifier to identify the analyzed image or video frame.
colorspace String The color space in which the results are presented.
cluster An array of ColorClusters Information about the colors in the analyzed frame.

ColorCluster

Field name Type Description
Color String The color at the center of a cluster.
Colorname String Only present if you set the parameter ColorDictionary. Provides the name of the color from the dictionary.
Proportion Float The proportion of pixels in the frame that belong to the cluster.

ColorClusterImage

Field name Type Description
id UUIDData A universally unique identifier to identify the analyzed image or video frame.
image ImageData The source image, containing only colors that match the center of a color cluster, and cropped to the analyzed region. If the analyzed region is not rectangular any pixels outside the region are transparent (or black if you use an image format that does not support transparency).

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