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    ball-morphologypublic

    ball-morphology

    Mathematical morphology for ndarrays where the structuring element is a ball in some Lp metric.

    Example

    First, let's read an image:

    var morphology = require("ball-morphology")
     
    require("get-pixels")("bwimage.png", function(err, data) {
      var r = data.pick(-1, -1, 0)
      
      // ... do stuff ... 
    })

    Which gives us the following array:

    We can dilate the image using the following command:

    morphology.dilate(r, 1)

    Which produces the following result:

    Similarly, we can also perform an erosion:

    morphology.erode(r, 1)

    Giving the result:

    For convenience, openings and closing are also implemented:

    morphology.open(r, 1)
    morphology.close(r, 1)

    Install

    npm install ball-morphology
    

    API

    var morphology = require("ball-morphology")

    morphology.dilate(array, radius[, p])

    Performs a binary morphological dilation with an Lp ball of a given radius

    • array is a binary image (updated in place)
    • radius is the radius of the ball in pixel units (may be fractional)
    • p is an optional argument giving the exponent of the metric. (Default 2)

    Returns array

    morphology.erode(array, radius[, p])

    Performs a binary morphological erosion with an Lp ball of a given radius

    • array is a binary image (updated in place)
    • radius is the radius of the ball in pixel units (may be fractional)
    • p is an optional argument giving the exponent of the metric. (Default 2)

    Returns array

    morphology.open(array, radius[, p])

    Performs a binary morphological opening with an Lp ball of a given radius

    • array is a binary image (updated in place)
    • radius is the radius of the ball in pixel units (may be fractional)
    • p is an optional argument giving the exponent of the metric. (Default 2)

    Returns array

    morphology.close(array, radius[, p])

    Performs a binary morphological closing with an Lp ball of a given radius

    • array is a binary image (updated in place)
    • radius is the radius of the ball in pixel units (may be fractional)
    • p is an optional argument giving the exponent of the metric. (Default 2)

    Returns array

    Credits

    (c) 2013 Mikola Lysenko. MIT License

    Keywords

    none

    install

    npm i ball-morphology

    Downloadslast 7 days

    3

    version

    0.1.0

    license

    none

    repository

    github.com

    last publish

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