7 - Connected Components Morphology

These flashcards cover key vocabulary and concepts from Lecture 6, focusing on Connected Components and Morphology in image processing.

Connected Components

A method that labels distinct regions of black pixels that are connected in an image.

Mathematical Morphology

A branch of image processing that uses set theoretic operations to process images, treating them as sets of pixels.

Erosion

A morphological operation that shrinks a foreground object using a structuring element.

Dilation

A morphological operation that expands a foreground object using a structuring element.

Structuring Element

A shape used in morphological operations, similar to a mask, that determines how the operation modifies the image.

Opening

A morphological operation that erodes an image and then dilates it, smoothing contours and eliminating small holes.

Closing

A morphological operation that dilates an image and then erodes it, filling small holes and smoothing boundaries.

Regional of Interest (ROI)

A selected subset of an image that is processed independently from the rest.

Equivalence Table

A data structure used to track and consolidate the labels of connected components.

4-neighbours

A connectivity criterion in image processing where pixels are considered connected if they share an edge.

8-neighbours

A connectivity criterion in image processing where pixels are considered connected if they share an edge or a corner.

Morphological Operations

Operations in image processing that manipulate pixel structures based on their shapes.

Edge Detection by Dilation

A technique where dilation highlights the edges of objects in a binary image.

Image Thresholding

The process of converting a grayscale image to a binary image by determining a threshold level.

Pixel

The smallest unit of a digital image, representing a single point in the image.

Bottleneck

A stage in a process that reduces the overall speed or efficiency, often due to resource limitations.

Labeling

Assigning a distinct identifier to each connected component in a segmented image.