Method for simulating artistic style of line chalk drawing

A chalk drawing and line technology, applied in the field of information, can solve problems such as no public reports

Inactive Publication Date: 2016-11-23
YUNNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • Method for simulating artistic style of line chalk drawing
  • Method for simulating artistic style of line chalk drawing
  • Method for simulating artistic style of line chalk drawing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0061] Embodiment: Carry out line chalk drawing artistic style effect drawing for an input static two-dimensional image.

[0062] (1) Chalk drawing foreground image decolorization

[0063] will input the foreground image I ( x , y )(Such as figure 2 ) into a grayscale image L ( x, y )(Such as image 3 ):

[0064]

[0065] In the formula: ( x , y ) represents the coordinate position of the pixel, x represents the abscissa of the pixel, y Represents the vertical coordinate of the pixel, , , Represents the input foreground image I ( x , y ) of the red, green and blue channels;

[0066] (2) Chalk drawing DoG line extraction

[0067] Get a grayscale image L ( x, y ) gradient, use Gaussian difference DoG filter to filter along the gradient direction, for L ( x, y ) after filtering at different pixel positions, the cumulative filter response is accumulated to obtain the cumulative value F ( x , y ):

[0068]

[0069] In the formula, Indicates the ...

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PUM

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Abstract

The invention relates to a method for simulating the artistic effect of line chalk drawing based on non-realism, belonging to the field of information technology. The drawing method is as follows: input a target image as the foreground image, take the color of the foreground image, and obtain the grayscale information of the foreground image; extract lines from the grayscale image based on the DoG filtering method; then, use a linear diffusion filter to extract Diffusion processing is performed on the line image of the line to obtain the line diffusion effect; the diffusion result image is enhanced to highlight the detail features of the line; again, the background image such as the blackboard material is input, and the image after the line enhancement is fused with the background image to obtain the final Line chalk art effect image; the invention has the advantages of being able to simulate the line chalk art effect by computer, wide application range, fast processing speed, good flexibility, wide adaptability, and is a beneficial supplement to non-realistic drawing technology.

Description

technical field [0001] The invention discloses a method for simulating the artistic style of line chalk drawing based on non-realism, relates to a method for simulating and drawing the artistic effect of chalk drawing with protruding lines in computer graphic image processing, and belongs to the field of information technology. Background technique [0002] In recent years, non-photorealistic rendering (NPR: Non Photorealistic Rendering) technology has become a research hotspot in computer graphics. Non-photorealistic rendering is based on human perception, combining artistic drawing rules and scientific technical methods, and is a useful supplement to computer graphics. This technology mainly generates Western or Chinese-specific artistic style effects through computer simulation, such as simulating images with different hand-painted styles such as cartoons, oil paintings, watercolors, and pencil drawings. It is characterized by the ability to express the artistic characte...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T11/00G06T15/02
CPCG06T11/001G06T15/02G06T2207/20192G06T2207/20221
Inventor 钱文华徐丹官铮岳昆张学杰
Owner YUNNAN UNIV
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