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Any school tell a photograph from a pencil drawing, and drawing - a drawing of the precise we need to divide the image on the types or classes, depending not on their artistic merit or subject, but on what technical means they can play or "read" The most common image types - bar, or bar. They are composed of individual lines - segments of arcs that can be consistently applied to paper or other material in any instrument of electron beam on the cathode-ray tube, also can display the line image sequences, although light shows the process and the Sudetenland be repeated many times per second to image remains visible will call this method of obtaining images trajectory Line images from the most simple images with a thickness of the stroke, the one bright line, more complicated images with multiple thicknesses (brightness) of the lines. This type of image - the basis for the various drawings, charts and diagrams, and especially to him, we will focus further on the engravings, drawings in pen strokes we meet with variable thickness can be said that this is also a separate "subspecies" of images yet,however, automatically acquired images with the lines we have not met. The images of this type include the cover and title pages of books with major labels, some posters, logos, decorative designs on fabrics and wallpaper, cartoon pictures of some theoretical "Applique" images can be played with a thin pen strokes by frequent when the sequence deposited |