How can I detect islands in a contour plot?

2 visualizaciones (últimos 30 días)
Sean
Sean el 8 de Sept. de 2011
I am trying to detect abnormalities in data with respect to two variables. (Imagine an smoothly varying image where you are trying to detect anomolies/discrepancies).
I can detect these manually by looking for islands in a contour map, but I can't seem to figure out how to algorithmically detect them. In particular, I am looking for a way to detect embedded islands (e.g. islands within islands).
How can I detect the regions where islands occur? Thanks

Iniciar sesión para responder a esta pregunta.

Respuestas (1)

Florin Neacsu
Florin Neacsu el 8 de Sept. de 2011
Hello,
If I didn't misunderstood your problem, I believe the Danielsson algorithm for map distance (CGIP, 14:227–248, 1980) could help you.
Regards, Florin

Categorías

Más información sobre Contour Plots en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by