Image Processing Toolbox

Feature Measurement

When you process an image, you may want to obtain information about how certain features of the image change. For example, when you perform dilation, you may want to determine how many pixels are changed from off to on by the operation, or to see if the number of objects in the image changes. This section describes two functions, bwarea and bweuler, that return two common measures of binary images: the image area and the Euler number.

In addition, you can use the imfeature function, in combination with bwlabel, to compute measurements of various features in a binary image. See the reference page for imfeature for more information.

Object Selection

Image Area