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The basic idea in binary morphology is to probe an image with a simple, pre-defined shape, drawing conclusions on how this shape fits or misses the shapes in the image. This simple "probe" is called structuring element, and is itself a binary image (i.e., a subset of the space or grid).
However, the drawing shows little resemblance to the latter. Historians suggest that many of the backdrops of the drawings were copied from drawing manuals. One such example is a drawing of the greater mousedeer, the background of which shows a leafless climber attached to a rock. Some scholars query this, as mousedeer do not live in such rocky ...
It describes the way a surface reflects light as a combination of the diffuse reflection of rough surfaces with the specular reflection of shiny surfaces. It is based on Bui Tuong Phong 's informal observation that shiny surfaces have small intense specular highlights , while dull surfaces have large highlights that fall off more gradually.
The term "neural rendering" is sometimes used when a neural network is the primary means of generating an image but some degree of control over the output image is provided. [8] Neural networks can also assist rendering without replacing traditional algorithms, e.g. by removing noise from path traced images.
Patterns in nature are visible regularities of form found in the natural world. These patterns recur in different contexts and can sometimes be modelled mathematically . Natural patterns include symmetries , trees , spirals , meanders , waves , foams , tessellations , cracks and stripes. [ 1 ]
Let X be an affine space over a field k, and V be its associated vector space. An affine transformation is a bijection f from X onto itself that is an affine map; this means that a linear map g from V to V is well defined by the equation () = (); here, as usual, the subtraction of two points denotes the free vector from the second point to the first one, and "well-defined" means that ...
Pennsylvania Dutch hex signs are a familiar type of motif in the eastern portions of the United States. Their circular and symmetric design, and their use of brightly colored patterns from nature, such as stars, compass roses, doves, hearts, tulips, leaves, and feathers have made them quite popular. [citation needed]
The brilliant iridescent colors of the peacock's tail feathers are created by structural coloration, as first noted by Isaac Newton and Robert Hooke.. Structural coloration in animals, and a few plants, is the production of colour by microscopically structured surfaces fine enough to interfere with visible light instead of pigments, although some structural coloration occurs in combination ...