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- The more general problem of extracting foreground and alpha from relatively arbitrary photographs or video streams is known as natural image matting. 更普遍的问题，提取前景和阿尔法从相对任意照片或视频流，是被称为天然形象地垫。
- Nature image has many limitations used as steganography cover. 自然图像用作隐写术载体具有诸多局限性。
- The transition from the natural image to mental image is a very slow and difficult march process.Mental image is certainly not the natural image's once more collage. 从自然形象到心理形象的过渡是一个非常缓慢而又艰难的行进过程，心理形象决非自然形象的再度拼凑。
- The proposed measurement is tested in the Corel natural image database and compared with the IRM and UFM methods in the SIMIPLIcity system. The results show that the retrieval performance is greatly improved. 最后在Corel自然图像库上对本文提出的算法进行了实验,分别与SIMPLIcity系统的IRM和UFM方法进行了比较,结果表明了本文算法的高效性。
- Natural images abound in large numbers in Tao Yuanming's poems, in which" clouds" appear frequently. 陶渊明诗文中有很多自然意象,其中“云”出现的频率很高。
- Perceptual Color Space Based Natural Image Matting 基于感知颜色空间的自然图像抠图
- Content-based natural image retrieval using DCD DCD用于基于内容的自然图像检索
- In comparison with photo-realistic rendering which simulates realistic natural images, NPR provides more concise and humanistic expressiveness in images. 相较于写实性算图以模拟真实的自然影像为目的，非写实性算图提供更为简练、且更具人性化的图像表达方式。
- Our SC algorithm is such an ANN simulating HVS, experimental results show that this method can successfully extract the edge features of natural images. 本文提出的SC算法即是一种模拟视觉系统的神经网络模型，实验结果表明它可以成功地提取自然图像的边缘特征；
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- The over-complete dictionary, which is built on anisotropic refinement and rotation of 2D nonseparable Mexican hat wavelet, can efficiently capture edge characteristics present in natural images. 利用二维不可分离、具有各向异性尺度的墨西哥草帽小波作为生成函数，这种函数构建的冗余字典能够有效捕获图像边缘轮廓特征。
- Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
- Events took their natural course. 事态依自然进程发展。
- Group pictures of your kids, black-and-white shots, or nature images, or place mismatched photos in identical frames. 一组有关孩子的照片、黑白照、自然风光，或者把不匹配的照片放进尺寸一致的相框都可以。
- She has a natural wave in her hair. 她的头发自然卷曲。
- Magnetism is a natural phenomenon. 磁力是一种自然现象。
- It is difficult to be natural when one is tense. 人在紧张的时候很难泰然自若。
- One assignment required that she iew hardcore pornography intercut with nature images while the researchers measured her body's response. 一项实验要求她观看**书籍并发挥想像，同时研究者测试她的身体反应。
