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Local color pencil drawing generation method and device

A pencil drawing and color technology, applied in the field of image processing, can solve the problem that the color pencil drawing generation method cannot meet the problem of highlighting the local color of the image, and achieve the effect of rich and vivid effect and rich artistic expression.

Active Publication Date: 2020-01-10
HENAN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0004] The purpose of the invention is to provide a method and device for generating partial colored pencil drawings to solve the problem that existing methods for generating colored pencil drawings cannot meet the needs of highlighting local colors of images

Method used

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  • Local color pencil drawing generation method and device
  • Local color pencil drawing generation method and device
  • Local color pencil drawing generation method and device

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Method example:

[0041] Such as figure 1 As shown, the local colored pencil drawing generation method of the present embodiment includes the following steps:

[0042] Step 1. Input the original color image.

[0043] Step 2. Carry out image segmentation to the original color image to obtain a color segmentation map, carry out grayscale processing on the color segmentation map to obtain a grayscale segmentation map, perform binary processing on the grayscale segmentation map to obtain a binary image, and determine the original image according to the binary image The foreground and background regions of a color image.

[0044] In this embodiment, mean shift segmentation is performed on the original color image to obtain a color seg...

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Abstract

The invention provides a local color pencil drawing generation method and device, and belongs to the technical field of image processing. The local color pencil drawing generation method comprises thefollowing steps: inputting an original color image; carrying out image segmentation on the original color image to obtain a color segmentation image, carrying out grayscale processing on the color segmentation image to obtain a grayscale segmentation image, carrying out binarization processing on the grayscale segmentation image to obtain a binary image, and determining a foreground region and abackground region of the original color image according to the binary image; performing image processing on the original color image to obtain a contour map and a texture map, and combining the contour map and the texture map to obtain a gray scale pencil drawing; and adding the color information of the foreground area of the original color image to the corresponding area in the grayscale pencil drawing to obtain and output a local color pencil drawing. According to the local color pencil drawing generation method, the color information of the foreground area of the original color image is added to the corresponding area in the gray scale pencil drawing to obtain the local color pencil drawing, so that the local color can be better highlighted, and the artistic expression form of the colorpencil drawing is enriched.

Description

technical field [0001] The invention relates to a method and device for generating partial colored pencil drawings, belonging to the technical field of image processing. Background technique [0002] Colored pencil is a painting tool with a variety of expressive techniques. The amount of force can change the depth of color, and the interlacing and blending of dozens of colors can create infinite color effects, delicate layers and spaces. Creating a colored pencil drawing requires consideration of factors such as the material, hardness, and paper of the pencil, and the creation is relatively difficult. To solve this problem, there have been methods for automatically generating colored pencil drawings using computer image processing technology, such as Xie Dangen, Zhang Zhili, etc. In 2013, Volume 30, No. 8 of Computer Applications and Software, a method described in a document entitled "An Improved Automatic Drawing Algorithm for Two-dimensional Colored Pencil Drawings" was p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00G06T7/11G06T5/00G06K9/38
CPCG06T11/001G06T7/11G06T2207/10024G06V10/28G06T5/70
Inventor 梁义涛朱玲艳孟亚敏李岚张猛
Owner HENAN UNIVERSITY OF TECHNOLOGY
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