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Image non-photorealistic rendering method and device

A non-realistic, image-based technology, applied in the field of image rendering, can solve the problems of creators adding, edge recognition with relatively close colors is not clear enough, rendering methods are cumbersome, etc., and achieve the effect of saving work

Inactive Publication Date: 2017-01-04
北京中传视讯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a non-realistic image rendering method and device, which aims to solve the problem that the traditional rendering method in the prior art is very cumbersome, and when processing many images, the recognition of edges with relatively close colors is not clear enough, and the color transition of the image is not enough Slick, issues that require a lot of work from post-production

Method used

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  • Image non-photorealistic rendering method and device

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Embodiment 1

[0046] figure 1 It is a flowchart of an image non-photorealistic rendering method according to a preferred embodiment of the present invention; the method includes the following steps:

[0047] Step1. Obtain the normalized image A;

[0048] Step2. Decolorize image A into single-channel image G. The formula is as follows:

[0049] G(i,j)=min{R A (i, j), G A (i, j), B A (i,j)}

[0050] Among them, G(i,j) represents the pixel value of the ith row and the jth column of the image G; R A (i, j) represents the pixel value of the red component in the i-th and j-th column of image A; G A (i, j) represents the green component pixel value of the i-th row and j-th column of image A; B A (i, j) represents the pixel value of the blue component in the i-th row and j-th column of image A. min{,,} takes the minimum value;

[0051] Step3. Perform Gaussian blur processing on image G to obtain image G 1 .

[0052]

[0053] among them, Represents the convolution operation; through the second-level Gaussi...

Embodiment 2

[0067] figure 2 It is a structure diagram of an image non-realistic rendering method and device according to a preferred embodiment of the present invention; the device includes a to-be-processed image acquisition module, a decolorization processing module, a first Gaussian blur processing module, a first image merging module, and a second Gaussian blur Processing module, second image merging module.

[0068] The to-be-processed image acquisition module is used to acquire the normalized image A;

[0069] Decolorization processing module, used to decolorize image A into single-channel image G. The formula is as follows:

[0070] G(i,j)=min{R A (i, j), G A (i, j), B A (i,j)}

[0071] Among them, G(i,j) represents the pixel value of the ith row and the jth column of the image G; R A (i, j) represents the pixel value of the red component in the i-th and j-th column of image A; G A (i, j) represents the green component pixel value of the i-th row and j-th column of image A; B A (i, j) r...

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Abstract

The present invention provides an image non-photorealistic rendering method and device. The device comprises a to-be-processed image obtaining module, a decoloration processing module, a first Gauss fuzzy processing module, a first image merging module, a second Gauss fuzzy processing module and a second image merging module. The method of the present invention improves greatly on the basis of a conventional rendering method, obtains the new image values by the pixel mathematical calculation, can obtain the images of a similar ink stained form directly, at the same time, can sketch the valuable form edges very clearly, can save a lot of work for the post processing fabricators, enables the subjective image forms to approach the freehand sketching better, and does not have the gradient and stray point phenomena.

Description

Technical field [0001] The present invention relates to the technical field of image rendering, in particular to an image non-realistic rendering method and device. Background technique [0002] Non-photorealistic graphics rendering is to omit details that have nothing to do with graphics, simplify the shape of the object, and even expose the hidden details to express the intention of the painter. In the previous step of rendering, a hazy outline is required, which refers to a black and white image with black, white, and gray as the main tones and with the meaning of Chinese painting. In photography, image post-production is essential. The general software is PHOTOSHOP. You can brighten and whiten the background of the photo by adjusting the curve, contrast, etc., to form a moisturizing white background effect. In addition, you can turn the subject into a hazy color by reducing the saturation and changing the color to black and white. [0003] Traditional rendering methods are ...

Claims

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Application Information

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IPC IPC(8): G06T11/00
Inventor 洪婷
Owner 北京中传视讯科技有限公司
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