共查询到19条相似文献,搜索用时 671 毫秒
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本文提出了一种笔划不经细线化处理,用有引导的笔道元素分析法,直接从二值文字图象中抽取手写汉字笔划的方法。此方法的特点是,在笔划的动态追踪过程中,能够顺利地穿越笔划之间的交连点,迅速到达笔划的终点。算法较简便,程序实现较容易,笔划抽取速度较快。 相似文献
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现有中国画研究缺少对画作情感的分析,但画家将生活感悟寄情于美术创作,升华国画的艺术价值.基于此种情况,文中提出融合人类认知优化深度学习网络结构的中国画情感识别算法.首先,根据图像显著性和笔道复杂度提出中国画感兴趣区域提取算法.再使用可视化卷积神经网络提取国画情感特征,并交互式地融合国画情感表达手法知识优化网络结构.最后微调构建的网络预测国画情感.实验将1 000幅中国画分为4种情感类别,准确率较高,识别效果较优.消融实验与可视化实验分析网络各层作用,进一步验证文中算法识别中国画情感的能力. 相似文献
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为了提高国画检索效率,应用SVM算法对鞍马画、花鸟画、人物画、竹子画和山水画等国画进行分类。首先通过对收集的国画样本进行预处理;其次,利用人眼对颜色的划分特点,把RGB模式图像转化为HSV模式,对其H、S、V分量进行非等间隔量化,组成一维特征向量,同时结合惯性比形成图像颜色特征信息,使用灰度共生矩阵算法获取纹理特征信息;最后,通过对比网格搜索、遗传算法(GA)、粒子群算法(PSO)的参数寻优方法,应用网格搜索法对国画图像进行分类,并对比了BP神经网络和判别分析算法的分类效果,SVM的正确率高达97%以上,试验结果表明SVM在国画分类应用是有效和可行的。 相似文献
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为了提高国画检索效率,应用SVM算法对鞍马画、花鸟画、人物画、竹子画和山水画等国画进行分类。首先通过对收集的国画样本进行预处理;其次,利用人眼对颜色的划分特点,把RGB模式图像转化为HSV模式,对其H、S、V分量进行非等间隔量化,组成一维特征向量,同时结合惯性比形成图像颜色特征信息,使用灰度共生矩阵算法获取纹理特征信息;最后,通过对比网格搜索、遗传算法(GA)、粒子群算法(PSO)的参数寻优方法,应用网格搜索法对国画图像进行分类,并对比了BP神经网络和判别分析算法的分类效果,SVM的正确率高达97%以上,试验结果表明SVM在国画分类应用是有效和可行的。 相似文献
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为解决宗地信息历史回溯问题,基于多色图理论,建立了宗地信息历史回溯模型,将宗地抽象为多色图中的节点,宗地间的变更关系抽象为多色图中的边,用节点和边的不同颜色分别表示宗地的不同状态及宗地间不同的变更关系;提出了回溯矩阵的赋值算法及历史回溯算法;设计了宗地变更业务相关数据结构,分析了计算机后台处理程序,开发了宗地变更业务的原型系统,表明了该模型和算法的可行性. 相似文献
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盛家川 《计算机工程与应用》2014,(21):1-3,13
基于内容的照片或自然图像分析和检索已经得到广泛的研究,但多数都基于颜色特征,不能直接用于水墨画艺术作品的分析。对图像进行预处理,提出基于灰度直方图描述水墨画笔道力度分布信息及构图风格,并利用神经网络学习水墨画整体技法风格特征,依据此特征进行不同艺术家间的分类。实验结果表明,通过对整体风格特征的提取,直方图模型能够有效表征画家不同的艺术风格,实现了水墨画的自动分类。 相似文献
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Outline字体结构式压缩算法及其实现 总被引:2,自引:0,他引:2
针对CJK Outline字体在存储量上存在的不足,本文提出一种结构式压缩算法。算法对CJK字体进行集合变换,得到笔划集合元素;并利用聚类算法得到模板笔划;对相似数据进行统一存储与调用。同时,本文还提出了一种基于笔划段的笔划抽取算法,从图论角度实现了集合变换。结果显示,算法取得了较好的效果,而且适用于多种字体。 相似文献
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根据视频画面中雨滴的时间无关性假设,设计出雨景随机模型来实现三维视景中雨景的可视化仿真。该方法对仿真视景的单帧画面进行雨景建模,在雨滴的形状上采用简单几何线条模拟,在雨滴的颜色上采用前景背景混合的方法,在雨滴分布上采用随机分布模型,最后通过各帧画面连续快速播放的方法来达到雨景的可视化效果。 相似文献
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Chung‐Lin Wen Chang‐Hsi Hsieh Bing‐Yu Chen Ming Ouhyoung 《Computer Graphics Forum》2008,27(7):1765-1772
This paper investigates a new approach for color transfer. Rather than transferring color from one image to another globally, we propose a system with a stroke‐based user interface to provide a direct indication mechanism. We further present a multiple local color transfer method. Through our system the user can easily enhance a defect (source) photo by referring to some other good quality (target) images by simply drawing some strokes. Then, the system will perform the multiple local color transfer automatically. The system consists of two major steps. First, the user draws some strokes on the source and target images to indicate corresponding regions and also the regions he or she wants to preserve. The regions to be preserved which will be masked out based on an improved graph cuts algorithm. Second, a multiple local color transfer method is presented to transfer the color from the target image(s) to the source image through gradient‐guided pixel‐wise color transfer functions. Finally, the defect (source) image can be enhanced seamlessly by multiple local color transfer based on some good quality (target) examples through an interactive and intuitive stroke‐based user interface. 相似文献
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基于条件生成对抗网络的书法字笔画分割 总被引:1,自引:0,他引:1
毛笔书法作为中华传统艺术的精华, 需要在新的时代背景下继续传承和发扬. 书法字是以笔画为基本单元组成的复杂图形, 如果要分析书法结构, 笔画分割是首要的步骤. 传统的笔画分割方法主要利用细化法从汉字骨架上提取特征点, 分析交叉区域的子笔画拓扑结构关系来分割笔画. 本文分析了传统笔画分割基于底层特征拆分笔画的局限性, 利用条件生成对抗网络(Conditional generative adversarial network, CGAN)的对抗学习机制直接分割笔画, 使提取笔画从先细化再分割改进为直接分割. 该方法能有效提取出精确的笔画, 得到的高层语义特征和保留完整信息的单个笔画利于后续对书法轮廓和结构的评价. 相似文献
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Katsuo Ikeda Takashi Yamamura Yasumasa Mitamura Shiokazu Fujiwara Yoshiharu Tominaga Takeshi Kiyono 《Pattern recognition》1981,13(3):191-206
An on-line recognition method for hand-written characters utilizing stroke vector sequences and a positional vector sequence has been developed. The number of target characters is about 2000, and fairly good recognition scores have been attained. Our scheme uses the number of strokes as the primary parameter. We employ three types of recognition strategy depending on the number of strokes. The general stroke vector sequence method, devised to analyze the shape, can represent both skeleton and local characteristics by a small amount of information; and the restricted dynamic programming method is effective to determine the shape of a stroke. The similarity of two shapes and the complexity of a stroke have been introduced to reduce the dictionary size and the processing time, respectively. 相似文献
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Yen CR Chi MT Lee TY Lin WC 《IEEE transactions on visualization and computer graphics》2008,14(2):468-480
We introduce a novel technique to generate painterly art map (PAM) for 3D non-photorealistic rendering. Our technique can automatically transfer brush stroke textures and color changes to 3D models from samples of a painted image. Therefore, the generation of stylized images/animation in the style of a given artwork can be achieved. This new approach works particularly well for a rich variety of brush strokes ranging from simple 1D and 2D line-art strokes to very complicated ones with significant variations in stroke characteristics. During the rendering/animation process, the coherence of brush stroke textures and color changes over 3D surfaces can be well maintained. With PAM, we can also easily generate the illusion of flow animation over a 3D surface to convey the shape of a model. 相似文献
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The goal of this paper is to study haptic skill representation and display in a Chinese calligraphy training system. The challenge is to model haptic skill during the writing of different strokes in Chinese characters and to achieve haptic rendering with high fidelity and stability. The planning of the writing process is organized at three levels: task, representation and device level to describe the haptic handwriting skill. State transition graph (STG) is proposed to describe switches between tasks during the handwriting. Chinese characters are modeled using 39 typical strokes, which are further grouped into basic and compound strokes. The compound stroke is considered to be sequential combination of the basic strokes. Straight and curve strokes are modeled using line segment and the Bezier curve, respectively. Information from STG is used for real-time collision detection and haptic rendering. Ambiguity of the collision detection at stroke-corner points is prevented using active stroke combined with local nearest point computation. A modified virtual fixture method is developed for haptic rendering. The approach is tested on a prototype training system using Phantom desktop. Initial experiments suggest that the proposed modeling and rendering method is effective. 相似文献