ImageMorphology.jl

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This package provides morphology operations for structure analysis and image processing.

ImageMorphology is a sub-package of the umbrella package Images.jl — either using Images or using ImageMorphology will give you access to this functionality.

Learn

The perhaps quickest way to use this library is to find a set of useful operators from the gallery and build your own pipeline from it.

For any advanced usage, we recommend you to read the "Concept" part. For instance, many morphology operation supports generic "structuring element".

Overview

The following tables give an overview of ImageMorphology functionalities.

This overview is not yet finished and only contains a subset of exported functions. The missing functions will be added in the future. You might still need to check the heavy reference page to find out what you need. Contributions are welcome!

Structuring Element (SE)

Structuring element is the key concept in morphology. If you’re not familiar with this, please read concept: structuring element first.

name summary

name	summary
`strel`	convert between different SE representations
`strel_type`	infer the SE type
`strel_size`	get the minimal block size that contains the SE
`strel_chain` and `strel_product`	compose multiple SEs into a bigger one
`strel_box`	construct a box-shaped SE, e.g., C8, C26 connectivity
`strel_diamond`	construct a diamond-shaped SE, e.g., C4, C6 connectivity
`centered`	shift the array center to `(0, 0, ..., 0)`

strel

convert between different SE representations

strel_type

infer the SE type

strel_size

get the minimal block size that contains the SE

strel_chain and strel_product

compose multiple SEs into a bigger one

strel_box

construct a box-shaped SE, e.g., C8, C26 connectivity

strel_diamond

construct a diamond-shaped SE, e.g., C4, C6 connectivity

centered

shift the array center to (0, 0, ..., 0)

Basic morphological operations

name summary examples

name	summary	examples
`extreme_filter` and `extreme_filter!`	iteratively apply a select function `f(x, y)` to each neighborhood	`extreme_filter` operation
`dilate` and `dilate!`	morphological max filter	`dilate` operation
`erode` and `erode!`	morphological min filter	`erode` operation
`opening` and `opening!`	fills white holes	`opening` operation
`closing` and `closing!`	fills black holes	`closing` operation
`bothat` and `bothat!`	extract black details	`bothat` operation
`tophat` and `tophat!`	extract white details	`tophat` operation
`mgradient` and `mgradient!`	morphological gradient	`mgradient` operation
`mlaplacian` and `mlaplacian!`	morpholigical laplacian	`mlaplacian` operation

extreme_filter and extreme_filter!

iteratively apply a select function f(x, y) to each neighborhood

extreme_filter operation

dilate and dilate!

morphological max filter

dilate operation

erode and erode!

morphological min filter

erode operation

opening and opening!

fills white holes

opening operation

closing and closing!

fills black holes

closing operation

bothat and bothat!

extract black details

bothat operation

tophat and tophat!

extract white details

tophat operation

mgradient and mgradient!

morphological gradient

mgradient operation

mlaplacian and mlaplacian!

morpholigical laplacian

mlaplacian operation

Geodesic operations

name summary examples

name	summary	examples
`underbuild`	morphological reconstruction by dilation, see also `mreconstruct`	`underbuild` operation and `mreconstruct` operation
`underbuild`	morphological reconstruction by erosion, see also `mreconstruct`	`overbuild` operation and `mreconstruct` operation

underbuild

morphological reconstruction by dilation, see also mreconstruct

underbuild operation and mreconstruct operation

underbuild

morphological reconstruction by erosion, see also mreconstruct

overbuild operation and mreconstruct operation