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GroupRegionsByLines

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Module: OCR

Splits an array of blobs by distance to computed base lines.

Name Type Range Description
Input value inRegions RegionArray Input regions (parts of characters)
Input value inRoi Rectangle2D Range of character classification
Input value inRoiAlignment CoordinateSystem2D*
Input value inLinesCount Integer 0 - ROI is divided into inLinesCount lines
Input value inLineWidth Real 0.0 - Value of line range used if inRemoveOutliers is set to TRUE
Input value inRemoveOutliers Bool If this flag is set blobs with distance greater than inLineWidth are removed.
Output value outLines RegionArrayArray Lines in single Array
Output value outLine0 RegionArray
Output value outLine1 RegionArray
Output value outLine2 RegionArray
Output value outLine3 RegionArray
Output value outAlignedRoi Rectangle2D
Diagnostic input diagLines Segment2DArray Segments which indicates the position of lines
Diagnostic input diagLineRanges Rectangle2DArray Rectangles represents range of lines which are included if inRemoveOutliers is set
Diagnostic input diagRegionPoints Point2DArray Point which indicates region position

Examples

As you can see in the below picture, the filter's task is to divide the input region into several sub-regions by its placement in a line. As a result, each line represents a separate region.

Exemplary result of the filter's usage.

Complexity Level

This filter is available on Advanced Complexity Level.