Morfologi

Bildbehandling i Python

Rebeca Gonzalez

Data Engineer

Binära bilder

Morfologisk filtrering

Bättre för binära bilder
Kan utökas för gråskala

Morfologiska operationer

Dilatation
Erosion

Strukturelement

Former i scikit-image

from skimage import morphology


square = morphology.square(4)

[[1 1 1 1]
 [1 1 1 1]
 [1 1 1 1]
 [1 1 1 1]]

rectangle = morphology.rectangle(4, 2)

[[1 1]
 [1 1]
 [1 1]
 [1 1]]

Erosion i scikit-image

from skimage import morphology


# Set structuring element to the rectangular-shaped
selem = rectangle(12,6)


# Obtain the erosed image with binary erosion
eroded_image = morphology.binary_erosion(image_horse, selem=selem)

Erosion i scikit-image

# Show result
plot_comparison(image_horse, eroded_image, 'Erosion')

Binär erosion med standard-selem

# Binary erosion with default selem
eroded_image = morphology.binary_erosion(image_horse)

Dilatation i scikit-image

from skimage import morphology

# Obtain dilated image, using binary dilation
dilated_image = morphology.binary_dilation(image_horse)


# See results
plot_comparison(image_horse, dilated_image, 'Erosion')

Dilatation i scikit-image

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Bildbehandling i Python