Pen light-colored artistic effect drawing method based on unreality feeling

A non-realistic, pen-based technology, applied in the information field, can solve problems such as unpublished reports

Inactive Publication Date: 2012-09-12
YUNNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Pen light-colored artistic effect drawing method based on unreality feeling
  • Pen light-colored artistic effect drawing method based on unreality feeling
  • Pen light-colored artistic effect drawing method based on unreality feeling

Examples

Experimental program
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Embodiment Construction

[0060] This embodiment is to draw a light color artistic effect with a pen for an input pair of static two-dimensional images, and its specific steps are as follows:

[0061] (1) DoG edge extraction

[0062] Convert the original image Input to a grayscale image (such as image 3 ), calculate the gradient of the grayscale image, use the DoG filter to filter along the gradient direction, and amplify the output of the filter along the real edge, that is, accumulate the responses of each filter to obtain F(s).

[0063] F ( s ) = ∫ - T T Input ( l ( t ) ) f ( t ) dt

[0064] In the formula, l(t) is the value of the input image Input on the gradient l...

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Abstract

The invention relates to a pen light-colored artistic effect drawing method based on unreality feeling, belonging to the technical field of information. The method provided by the invention comprises the following steps: obtaining gradient information of an original image, using DoG filter to filter the gradient information along the gradient direction, and obtaining an edge image of the original image through comparison with a threshold valve; computing linear filtering coefficient through variance and mean value of a local window, performing linear filtering on the original image and then performing abstraction through bilateral filtering to obtain color diffusion effect; overlaying the edge image and an color diffusion image to obtain preliminary pen line effect; adopting a light illumination module to transmit color so as to obtain color information of the original image; and enhancing contrast of the image through a contrast enhancing method so as to obtain final pen light-colored artistic effect. The advantages of the method provided by the invention are as follows: the pen light-colored artistic effect drawing method more conforms with aesthetic standard of people, has fast processing speed, good flexibility and wide application scope and is beneficial complementation for imitations of different artistic effects based on the unreality feeling.

Description

Technical field: [0001] The invention discloses a non-realistic-based drawing method of pen light color artistic effect, relates to a simulation drawing method of pen light color artistic effect in computer graphic image processing, and belongs to the field of information technology. Background technique: [0002] With the advancement of science and technology and the continuous improvement of people's aesthetic taste, non-photorealistic rendering technology (Non-Photorealistic Rendering) has been widely valued by people, and it is widely used in film and television works, advertising, scenic spot roaming, game entertainment and other fields. The role played is becoming more and more prominent. Non-photorealistic rendering attaches great importance to the hand-painted artistic characteristics of graphics and images, with flexible and diverse styles. The main goal of its rendering is often not to show the reality of graphics, but to highlight some artistic characteristics of ...

Claims

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Application Information

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IPC IPC(8): G06T11/00
Inventor 钱文华徐丹张学杰官铮
Owner YUNNAN UNIV
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