用沙子照片生成沙混合物图像，并转成沙质风格数字画。
Computer-Generated Sand Mixtures and Sand-based Images
- 基于沙子照片像素特征生成混合物图像。
- 生成图像与实物沙混合物颜色相近，纹理更粗糙。
- 能保留原图内容，实现数字图向沙质图像转换。
本文旨在验证所提出算法的软件实现效果，即利用一张沙子照片作为输入，生成沙混合物图像，并将生成的混合物图像用于转换数字图片为沙质风格图像。通过对比实际混合物照片与其计算机生成版本，验证混合物生成是否符合预期；同时比较生成的沙质图像与其原始图像，验证图像内容在转换过程中是否保持一致。结果表明，实际混合物与生成图像在整体色调和颜色上相似，但生成图像因按像素继承视觉特征而非单个沙粒，导致纹理更粗糙、对比度更高。沙质图像与其源图像的对比显示，该软件能有效保持原图内容，在替换纹理时仍保留图像本质信息。实验结果证明，该算法的软件实现能够有效利用沙子图像生成混合物图像，并进一步将数字图像转化为计算机生成的沙质风格图像。
原文摘要 · Abstract (English)
This paper aims to verify the effectiveness of the software implementation of the proposed algorithm in creating computer-generated images of sand mixtures using a photograph of sand as an input and its effectiveness in converting digital pictures into sand-based images out of the mixtures it generated. The method of this paper is to visually compare the photographed image of the actual mixtures to its computer-generated counterpart to verify if the mixture generation produces results as expected and compare the computer-generated sand-based images with its source to verify image reproduction maintains same image content. The results of the mixture comparison shows that the actual and the computer-generated ones have similar overall shade and color. Still, the generated one has a rougher texture and higher contrast due to the method of inheriting visual features by pixel, not by individual sand particles. The comparison of the sand-based image and its source has demonstrated the software's ability to maintain the essence of its contents during conversion while replacing its texture with the visual properties of the generated sand mixture. The result have shown that the software implementation of the proposed algorithm can effectively use the images of sand to generate images of its mixtures and use those mixture images to convert a digital picture into a computer-generated sand-based image.
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