A method for generating binary stipple effect pictures and videos

Abstract

The invention relates to the technical field of image processing and discloses a generation method for a two-value stipple effect picture. The generation method comprises the steps that a target picture is created on the basis of an original picture; the unit area size is set; a drawing terminal condition is determined; the original picture is converted into a grey scale picture; the random array of positions for drawing two-value points in the target picture is determined; the position information of one point is selected from the random array in sequence, and the point is used as the current point; the grey scale information of the current point in the original picture is obtained, and the regional two-value point density is determined; a two-value point region is generated; the two-value point region is drawn in the target picture; whether a current drawing condition meets the drawing terminal condition or not is judged, if so, the target picture is output; and if not so, the next point is drawn. The invention also discloses a method for drawing a two-value stipple effect video. According to the generation method for a two-value stipple effect picture and video, a computer is taken as the tool, and two-value stipple effect pictures are automatically and rapidly drawn according to digital pictures.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for generating binary pointillism effect pictures and videos. Background technique [0002] A stippling effect picture is aimed at a source picture, reproduces its picture content with dots of different sizes and densities, and uses scattered dots to express continuous tone transformation effects, especially the simple way is binary (usually black and white) points to represent continuous shades of gray. [0003] The concept of forming a picture with points includes three types: Pointillism, Stippling, and Halftone (dithering): the first is to superimpose scattered, pure-color points of different colors to express the content of a picture, usually referring to a painting method and Style, which belongs to a branch of Impressionism; the second is to express light and dark tones respectively by dots of a single color with alternating density and density, and to d...

AI Technical Summary

Problems solved by technology

These methods generally convert the reference picture into a stippling image, but do not examine its specific hue and frequency characteristics for each picture. For the points at the edge position of the reference picture, the edge information will be blurred due to the color averaging effect. , resulting in the final generation of dot paintings cannot clearly express the edge information of the source image, which affects the information transmission effect of the original image

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