3.5 Concluding remarks Considering chosen land cover classes, results from image classification (Figure 5) and accuracy assessment can be good starting point for certain analysis:
in the knowledge base, it must be well known whether selected sample is vegetation (forested area) or vegetated crop area
around 30% of misclassified samples represent classes with small signature separability
classification procedure is strongly influenced by the presence of clouds. These regions are lighter, so they cannot be properly classified. Since several samples, during accuracy assessment, were taken in this area with intention, overall classification procedure is probably of higher accuracy
at first sight, time necessary for fuzzy classification is longer comparing to maximum likelihood procedure, which takes several seconds to classify an image. But, if in ML procedure possible image transfer to recognizable format for certain software, formulation of the training areas, analysis concerning signature separability take place, than situation is quite different: fuzzy logic takes advantage of already created simple rules and image classification (started from the scratch in both procedures) equal or even less time consuming. Of course, different conditions during image capture must be taken into account.
considering the level of classification accuracy, fuzzy logic can be satisfactory used for image classification.