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A layered drawing method for pictures with stippling effect

A picture and stippling technology, applied in the field of image processing, can solve the problems of affecting the transmission effect of picture information, blurring edge information, and point painting works cannot clearly express the edge information of the source picture, etc.

Active Publication Date: 2016-06-01
中云开源数据技术(上海)有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

These methods generally convert the source image into a pointillism image, but do not examine its specific hue and frequency characteristics for each image. For the points at the edge of the source image, the edge information will be blurred due to the color averaging effect. , resulting in the final generated dot painting work not being able to clearly express the edge information of the source image, which affects the information transmission effect of the original image

Method used

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  • A layered drawing method for pictures with stippling effect
  • A layered drawing method for pictures with stippling effect
  • A layered drawing method for pictures with stippling effect

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Embodiment Construction

[0024] The specific implementation of a layered drawing method of a stippling effect picture according to the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] The stippling effect picture refers to drawing a picture with scattered, mutually superimposed, pure color points of different colors. The present invention refers to a method for automatically completing stippling with the help of a computer by a computer software program.

[0026] See attached figure 1 , a kind of hierarchical drawing method of stippling effect picture, comprises the following steps:

[0027] Step 1: Based on the source picture, create a blank target picture with the same size as the source picture (step S01 in the figure).

[0028] The source picture is a color picture used to generate a pointillism style picture, and its color component can be a single-component grayscale image, or RGB, HSV, LAB format or other digital image formats. The ta...

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Abstract

The invention relates to the technical field of image processing and discloses a gradation drawing method for a picture with a dot painting effect. The gradation drawing method includes the following steps: building a target picture, setting a color point shape, obtaining a source picture edge intensity graph, obtaining a variance graph, determining a position sequence, a size sequence and a color sequence of color points of the target picture, drawing the color points on the target picture till a drawing cut-off condition is met, and finally outputting the target picture. A computer is used as a tool, works of dot painting styles can be generated automatically and fast, and colors and edge information of a source picture are reserved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a layered drawing method of a stippling effect picture. Background technique [0002] The stippling effect picture is aimed at a source picture, reproduces its picture content with dots of different sizes, and expresses continuous tone transformation effect with scattered dots. 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 describe the content of the picture, which also refers to a painting method and style; the third and the second The method is similar, more for digi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/40
Inventor 迟冬祥
Owner 中云开源数据技术(上海)有限公司
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