Announcements

Image Segmentation

From images to objects

Image Segmentation

Image histograms

What do histograms look like?

Histogram-based segmentation

Histogram-based segmentation

Clustering

Break it down into subproblems

K-means clustering

Cleaning up the result

Dilation operator:

Dilation operator

Erosion operator:

Erosion operator

Nested dilations and erosions

Nested dilations and erosions

Nested dilations and erosions

Graph-based segmentation?

Images as graphs

Segmentation by Graph Cuts

Cuts in a graph

But min cut is not always the best cut...

Cuts in a graph

Interpretation as a Dynamical System

Interpretation as a Dynamical System

Color Image Segmentation