Image processing method and system for simulating pencil sketch

A technique for pencil drawing and image processing, which is applied in the field of image processing, and can solve problems such as large amount of computation, poor user experience, and no simulation of pencil drawing line effects, etc., to achieve the effect of improving authenticity

Inactive Publication Date: 2015-09-16
XIAMEN MEITUZHIJIA TECH
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Problems solved by technology

In the prior art, although there are already many sketch effect filters for users to choose from, most of them are processed for the hue of the color, and do not follow the artistic ch

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  • Image processing method and system for simulating pencil sketch
  • Image processing method and system for simulating pencil sketch
  • Image processing method and system for simulating pencil sketch

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[0048] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present invention clearer and clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0049] Such as figure 1 As shown, an image processing method for simulating pencil sketch of the present invention includes the following steps:

[0050] 10. Perform grayscale processing on the image to be processed to obtain a grayscale image;

[0051] 20. Perform histogram statistics on the grayscale image, and perform histogram matching according to the histogram statistics results to obtain the histogram mapping table;

[0052] 30. Perform mapping processing on the grayscale image according to the histogram mapping table to obtain a background color imag...

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Abstract

The invention discloses an image processing method and system for simulating a pencil sketch. The method includes the followings steps that: histogram statistics is performed on the grey-scale image of an image to be processed, and histogram matching is performed according to the result of the histogram statistics, so that a histogram mapping table can be obtained; mapping processing is performed on the grey-scale image according to the histogram mapping table, so that a ground color image can be obtained; edge detection is performed on the grey-scale image, so that an edge image can be obtained; radial fuzzy processing at eight directions is performed on the edge image, so that obtained radial fuzzy images at the eight directions are subjected to superposition processing, so that a line image can be obtained; multiplication processing is performed on the ground color image and the line image, so that a pencil sketch rendering can be obtained. With the image processing method and system for simulating the pencil sketch, the verisimilitude of the pencil sketch rendering can be improved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image processing method for simulating a pencil sketch and a system for applying the method. Background technique [0002] Sketch is an art that uses pencil, chalk, etc. as a medium to express objects or scenes with lines. The basic modeling technique of pencil sketch is to express the shape, structure and space of objects with lines and light and dark tones. In the prior art, although there are already many sketch effect filters for users to choose from, most of them are processed for the hue of the color, and do not follow the artistic characteristics of sketch style painting creation, and do not have the line effect drawn by pencil It is simulated, and most of them have a large amount of calculation and poor user experience. Contents of the invention [0003] In order to solve the above-mentioned problems, the present invention provides an image processing metho...

Claims

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Application Information

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IPC IPC(8): G06T11/00G06T7/00
Inventor 张伟傅松林李志阳吴善思源
Owner XIAMEN MEITUZHIJIA TECH
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