Regression of Layers

Command: Image Analysis > Regression of Layers

Sometimes the question arises whether two layers are correlated to each other. While simply calculating the correlation coefficient between layers may lead to wrong conclusions (e.g. due to outliers) plotting the corresponding layers against each other immediately uncovers the relationship, and will not only show the correlation but also the data structure of the two related layers. Furthermore, plotting the residuals of a regression model may result in an image which displays specific information otherwise not seen.

How To: Please follow these steps to perform layer regression:
  1. Select the two layers to be regressed by clicking the layer selection buttons .
  2. Select the appropriate regression model.
  3. The correspondence between pixels in the regression model and the residual image at the right can be visualized by marking pixels which stand out.