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Removing Speckle

Removing “Speckle”

CAD drafting Removing Speckle 0    Ribbon: Raster – Filters > CAD software Removing Speckle 1 Speckle Remover

CAD drawing Removing Speckle 2    Menu: RasterFilters > CAD drafting Removing Speckle 3 Speckle Remover…

CAD software Removing Speckle 4 Command line: SpeckleRemover

CAD drawing Removing Speckle 5   This functionality is available only in the Raster module.

The filter removes raster objects (isolated groups of pixels), the size of which is less than the specified value, and automatically estimates the size of spots in the image. This filter can be used after binarization or separation procedures to remove small raster objects from the resulting monochrome layer images.

CAD drafting Removing Speckle 6

Fragment of a monochrome raster obtained as a result of binarization

CAD software Removing Speckle 7

After “speckle” removal

1.    Select images to be processed and run the CAD drawing Removing Speckle 8 Speckle Remover command.

CAD drafting Removing Speckle 9 

2.    Enter the maximum size of raster objects to be deleted in the current units (left input field) or in points (right input field).

3.    Or check the Auto estimating box to let the filter estimate the size of the raster “speckle” before filtering.

To measure the size of a raster object on the screen, click CAD software Removing Speckle 10 button and specify a point inside the object, or click CAD drawing Removing Speckle 11 button and specify two points on the screen. The program will set the “speckle” size equal to the distance between the specified points.

4.    Click Apply.

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