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The Concept Of The Islands Extraction In Satellite Images Using Mathematical Morphology, Przemysław Kupidura
The Concept Of The Islands Extraction In Satellite Images Using Mathematical Morphology, Przemysław Kupidura
Przemysław Kupidura
The neighborhood is one of the indirect features of the object which may be used in the interpretation of the image. Sometimes, this feature may be essential, what can be shown using an example of islands. According to Oxford Dictionary (Internet edition) island is "a piece of land surrounded by water" so, as we can see, this element of landscape is defined by its neighborhood. The traditional, pixel-based classification is useless in such a case, taking into account only digital numbers of individual pixels. It is impossible to classify islands properly, using this kind of non-contextual algorithms. This paper presents …
The Morphological Filtering Of The Remote Sensing Images For The Noise Reduction Comparing To Traditional Filters, Przemysław Kupidura, Magdalena Jakubiak
The Morphological Filtering Of The Remote Sensing Images For The Noise Reduction Comparing To Traditional Filters, Przemysław Kupidura, Magdalena Jakubiak
Przemysław Kupidura
The advantages and disadvantages of the traditional (non-morphological) filters are commonly known. Focusing only on disadvantages, it is necessary to mention that most of these filters mainly blur noise over the image, making it less visible. That operation causes depreciation of the amount of information on the image rather than increasing its quality. In recent years there has been a trend to develop more efficient procedures for improving image quality. Theoretically, morphological filters have potential in such usage without possessing the drawbacks of traditional filters. The purpose of this paper is to present the results of an evaluation of the …