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首页> 外文会议>Advances in Multimedia Information Processing - PCM 2008 >A Novel Method for Pencil Drawing Generation in Non-Photo-Realistic Rendering
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A Novel Method for Pencil Drawing Generation in Non-Photo-Realistic Rendering

机译：非真实感渲染中铅笔图生成的新方法

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摘要

This paper puts forward a novel method for automatically generatingrna pencil drawing from a real 2D color image in non-photo-realistic rendering.rnFirst, the edge of the color image is detected by Sobel operator. Next, the colorrnimage is sharpened by Unsharp Mask (USM), and then color scaling is used tornget an image with radial and edge details. Furthermore, the original image isrndivided into many meaningful regions using an efficient method of imagernsegmentation, then the texture direction is determined by Fourier transform andrnshape feature. To render better effects of illumination and local texture of pencilrndrawing, the line integral convolution (LIC) algorithm is applied and combinedrnwith color scaling and white noise image. Finally, the pencil drawing is createdrnand the generation results from the superposition of the edge, the USM image,rnand the texture. Experimental results prove that our method could enhance the:rngenerated efficiency greatly by creating a more obvious edge, more naturalrntone, and more real texture than those offered by existed methods.
机译：提出了一种在非照片级逼真的渲染中从真实的2D彩色图像中自动生成铅笔素描的新方法。首先，由Sobel算子检测彩色图像的边缘。接下来，使用“锐化蒙版”（USM）锐化彩色图像，然后使用颜色缩放比例来绘制具有径向和边缘细节的图像。此外，使用有效的图像分割方法将原始图像划分为多个有意义的区域，然后通过傅立叶变换和形状特征确定纹理方向。为了获得更好的照明效果和铅笔图的局部纹理效果，应用了线积分卷积（LIC）算法，并将其与颜色缩放和白噪声图像相结合。最后，创建铅笔图，并通过边缘，USM图像，纹理和纹理的叠加生成结果。实验结果证明，与现有方法相比，该方法可以产生更明显的边缘，更自然的色调和更真实的质感，从而大大提高了生成效率。

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