How to use the 'solidity' property of the regionprops function of MATLAB in Octave?

问题

I have a code in MATLAB that I have to convert into Octave. I have problems with the following command:

boxes = regionprops (L, 'Solidity')

where L is a binary image class double.

Octave does not know the 'Solidity' property . Is there a similar property or a function that I can use to run the code in Octave?

回答1:

According to the definition of 'Solidity' in matlab regionprops this measurement is the Area/ConvexArea.

In order to calculate the ConvexArea do the following things:

1. Get id list of the connected component pixels. Use: regioprops(I,'PixelIdxList')
2. Calculate their convexhull. Use: H = convhull (x, y)
3. Calculate the area of the convexhull. Use: polyarea(convexHullX,convexHullY)

来源：https://stackoverflow.com/questions/39305344/how-to-use-the-solidity-property-of-the-regionprops-function-of-matlab-in-octa