|Home Image Processing Similarity Map
The similarity map is a simple but efficient tool to detect spectroscopically similar regions of an image. The classification obtained with this tool is either based on the multidimensional distance to a reference spectrum ("end member"), or on some kind of correlation to it. The distance or the correlation is calculated on the basis of the currently loaded spectral descriptors.
Epina ImageLab supports the following similarity criteria:
The resulting similarity map is either encoded by a red/blue color palette for correlations, or a red/black color palette for distances. In both cases the red areas are the areas of the highest similarity.