Description: 近年来，随着互联网的高速发展，网上的多媒体信息也急剧增加，这些多媒体信息以图像为主。如何从浩瀚的图像数据库中快速、准确地找出所需要的图像，己成为一个备受关注的研究课题。有效地组织、管理和检索大规模的图像数据成为迫切需要解决的问题。于是基于内容的图像检索(Content-Based Image Retrieval: CBIR)作为一个崭新的研究领域出现了。
本课题拟研究、分析彩色图像红、绿、蓝三基色直方图的生成、特征提取和相似度等问题，应用图像的颜色信息—三基色直方图对图像进行检索。针对基于颜色的图像检索，本文采用应用广泛的RGB颜色空间来表示图像的颜色特征，对颜色分量进行等间隔量化并形成特征矢量并对特征矢量进行归一化处理，采用图像均匀分块的方法引入图像中色彩所处的位置信息，用距离度量函数进行图像的相似性匹配。在此基础上实现了基于三基色直方图算法的检索系统。
本文的研究和实践对于促进基于内容的图像数据库检索技术的应用具有一定的参考价值和实践意义。-With the rapid development of Internet, the multimedia information is booming. All this information is mostly images. Effective recognizing, management and searching all these images have been an emergent problem. This has led the rise of a new research and development field: Content-Based Image Retrieval (CBIR).
The topics to research, analysis color images red, green and blue color histogram generation, feature extraction and the similarity of the issues, application of the color image- trichromatic histogram of the image retrieval. Based on the color against the static image retrieval, this paper application of a wide range of RGB color space to indicate the color image features, the color components, such as spacing and quantitative characteristics of a feature vector and a normalization of vector processing, using uniform image block the introduction of the method in which the color image Location information, and distance measuring function similar to the image of the match. On Platform: |
Size: 408576 |
Author:qichao |
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Description: HSV颜色空间较RGB空间更适合人的感官视觉，在HSV空间统计图像的分布特征并用于检索比在RGB空间的效果较好。-HSV color space than RGB space is more suitable for people’s senses of sight, in the HSV spatial statistical distribution of the image and is used to retrieve than in RGB space effective. Platform: |
Size: 1024 |
Author:董懂 |
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Description: matlab编写的图像处理GUI小程序，实现（1）对一幅暗RGB图像的直方图均衡，（2）并分别在R、G、B通道进行直方图均衡，RGB三个分量可通过滑块调节，（3）用HSI模型增强图像。附有具体的文档说明。-MATLAB image processing GUI program, to achieve (1) to a pair of dark RGB image histogram equalization, (2) and in the R, G and B channels of histogram equalization, the RGB three components can be by adjusting the slider, (3) the HSI color model was used to enhanced image. With a detailed documentation Platform: |
Size: 209920 |
Author:蔡颖 |
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Description: 基于图像检索的，颜色特征提取MATLAB中由RGB转向HSV颜色空间的颜色直方图-Based on image retri , the color feature extraction in the MATLAB RGB to HSV color histogram of color space Platform: |
Size: 1024 |
Author:小王 |
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Description: 使用MATLAB，实现以下四个功能
一、获取图片RGB值：给定一张图片，获取点(x,y)，以及(x,y)周围8个点的R、G、B值。
二、实现rgb2gray函数：使用matlab实现rgb2gray的功能，并能计算出转换后灰度图片的方差。
三、灰度图对比度增强：分别使用灰度拉伸和直方图均衡化，增强给定图的对比度。
四、图像去噪：对给定图片加椒盐噪声，并选择两个去噪算法去除椒盐噪声。
-Using MATLAB, to achieve the following four functions
First, access to image RGB value: Given a picture, get the point (x, y), and (x, y) around 8 o clock in the R, G, B values.
Second, the realization rgb2gray function: using matlab realize rgb2gray functions, and can calculate the variance after the conversion of grayscale image.
Third, the grayscale contrast enhancement: namely, the use of gray stretch and histogram equalization, contrast enhancement given graph.
Fourth, the image denoising: for a given image add salt and pepper noise, and you know at least two denoising algorithm to remove salt and pepper noise.
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Size: 455680 |
Author:Jane Ge |
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Search - histogram of rgb in matlab