Akihito Kubota

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We deal with the "octgrid" model which is a data structure for raster data such as 2D images, spread sheets and so forth. The "octgrid" model is an octal degree grid graph model and is able to handle various raster data with heterogeneous parts. In this paper, we consider change ratio of the number of cells when regions are shifted in a 2D image represented(More)
We deal with data structures and algorithms suitable for the displaying of multiple binary raster images. Multiple images are dealt as a multiple layer image. In this paper, we introduce three algorithms for operation of images represented by hexadeci-grid as multiple layer images and show some examples for our introduced algorithms.
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