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Element Icon Color Blob Tracker
Category: Object Tracking AddIn: Object Tracking
Creator: OkazoLab Scope: Parent event
Owns Snippets: None Usage: Stimulus screen


NameDescription                              ConstraintsTypeOn
Grab Blob Now        Grabs the mean color and size of a blob inside of the current element area. The grabbed values are assigned to the Base Color and Base Size properties                Boolean         
Base Color        Defines the base blob color                stColor         
Hue Tolerance        Defines the hue tolerance (%) in blob detection relatively to the base color hue and the full hue range in 360 deg.                Double         
Saturation Tolerance        Defines the saturation tolerance (%) in blob detection relatively to saturation of the base color                Double         
Brightness Tolerance        Defines the brightness tolerance (%) in blob detection relatively to brightness of the base color                Double         
Base Size        Defines the base size of the color blob                clSize         
Size Tolerance        Defines the size tolerance (%) in blob detection relatively to the base size                Double         
Detection Pace        Defines the minimal pace (in ms) of the auto-detection passes in response to visual changes in the parent event. If the visual changes are frequent, e.g. due to playing movie, the pace should not be less than the detection processing time.                Double         
Test Detection Now        Runs a test detection that finds a blob on the current event surface.                Boolean         
Border Visible        Defines whether a border is shown around the element's viewport at runtime                Boolean         
Runtime Status
Processing Time        Returns the time spend by the last detection pass.                clTime         
Trajectory Control
Reset Trajectory Now                        Boolean         
Save Trajectory Now        Assign a filename to save the object trajectory recorded at runtime                String         
Preview Trajectory                        Boolean         
Export To Library                        Boolean         
Visual Appearance
Alpha Masking        Defines, whether the visual content is used to create an opacity mask on the event surface. If masking is on, the content's pixel luminance (or, its inverse) defines transparency within element's viewport. The alpha masking allows, for example, create transparent holes on the event surface.                Int32         
AntiAliasing        if true, the rendered content will be antialiased for smoother visual appeariance. If false, rendering will be authentic to its source, e.g. a bitmap.                Boolean         
Position        Defines a position of the rendering viewport on the screen                clPoint         
Size        Defines a size of the element's rendering viewport on the screen                clSize         
Z Order        Indicates Z Order of the element on the given event                Int32         
Pivot Point        Defines alignment of the pivot point (or, element's position) relative to element's rendering area. The pivot point sets the center of element's rotation and scale directions.                stAlig..         
Visible        Defines whether the element is visible                Boolean         
Transparent Color        The color of the original pixels of rendered content that will be set as transparent                stColor         
Transparent Tolerance        Tolerance ratio for choosing colors that become transparent. Zero means that effect is not applied, 1 denotes that all colors will become trasparent                Int32         
Color Mask        Produces a multiplicative combination of the original pixels and the selected mask color (except the alpha channel).  The effect emulates a look through a colored glass.  White or transparent mask color dont change the original pixels                stColor         
Opacity        Opacity of the rendered content                Int32         
Contrast        Contrast of the rendered content                Int32         
Brightness        Brightness the rendered content                Int32         
Saturation        Saturation of the rendered content                Double         
Pixelation        Pixelation of the rendered content                Int32         
Blurring        The radius used in the gaussian blur of rendered content, as a pixel-based factor. The default is 0 which means no blurring.                Int32         
Scrambling                        Double         
Scrambling Grid Size        Defines a size of the scrambling grid                clSize         
Positional Jitter
Reset Jitter Now        Runtime command that resets the positional jitter.                Boolean         
Current Jitter        Returns the current jitter                clPoint         
Jitter Range        Defines a possible range for the random jitter. The range is centered to the position of the element.                clSize         
Is Enabled        If set to false the element is completely omitted when the experiment is run                Boolean         
Title        Title of the element                String         

Color Blob Tracker Element automatically tracks an arbitrary color object on the event surface. The tracking process returns the object position and size over time. The results can be used in runtime, e.g. to move the ROI area, or recorded as a time-line trajectory.


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