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Description: 基于颜色矩特征的图像检索：首先RGB颜色空间转换到HSV颜色空间；针对HSV三个分量计算颜色矩作为图像的内容特征；计算查询图像与图像库中每幅图像的相似距离，排序后给出检索结果。-Moment features based on color image retrieval : First RGB color space conversion to HSV color space; Three weight against HSV color calculated moments as images of features; Inquiries calculated images and image repository, each image is similar distance, is sorting search results.
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Size: 2080768 |
Author: 吴成玉 |
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Description: 用的是局部颜色特征，再说细点是用里面的区域颜色直方图的方法。把图像归一化到256X256，把图像分成4X4块，计算16个区域的颜色直方图、、、
最后计算相似度是用欧氏距离.-Using local color feature, repeat fine-point is inside the regional color histogram method. The normalized image to 256X256, the image is divided into 4X4 blocks, the calculation of the 16 regional color histogram, calculated similarity is Euclidean distance.
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Size: 12361728 |
Author: 周文 |
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Description: 基于颜色进行图像检索的一个简单实现
使用欧氏距离-Color-based image retrieval using the implementation of a simple Euclidean distance
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Size: 1010688 |
Author: 华华 |
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Description: The program uses opencv and distrbute color according to distance of Object pixels.
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Size: 1024 |
Author: Bobi |
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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
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Size: 408576 |
Author: qichao |
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Description: The provided Matlab functions demonstrate a simple method for training and testing a color detection system. In general, a color detection algorithm searches an image for pixels that have a specific color. In this demo the HSV color space has been used, instead of the RGB space. According to that model, H(ue) dimension represents the "color", S(aturation) dimension represents the dominance of that color and the V(alue) dimension represents the brightness. Therefore, the color detection algorithm can search in terms of color position and color "purity", instead of searching for specific RGB values. We have to note here, that in order to detect the desired color, it is needed to define a tolerance in each HSV dimension. For example a tolerance equal to 0.050 in the H dimension means that the algorithm will detect pixels whose H value has a distance (from the desired value) less than 0.050.
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Size: 169984 |
Author: jack |
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Description: 从摄像头提取视频文件，并显示每个图像帧的灰度直方图与一维RGB彩色直方图，并且比较上述直方图的距离。有四种比较方法一一实现了。-Extract the video file from the camera and display each image frame of gray-scale histogram and the one-dimensional RGB color histogram, and compare the histogram distance. There are four comparative method 11 achieved.
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Size: 2988032 |
Author: bends |
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Description: A simple example showing how to track an object with particle filter. Likelihood is based on Bhattacharya distance of color histogram.
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Size: 13255680 |
Author: sofi |
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Description: 基于肤色和Hausdorff距离的人脸检测系统的matlab程序-Hausdorff distance based on skin color and face detection system matlab program
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Size: 1076224 |
Author: 赵慧君 |
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Description: 生成128条黑白颜色的结构光条纹，其中黑条纹的宽度是白条纹宽度的三倍。-Generate 128 black and white color structured light stripes, black stripes of the width of which is three times the width of the white stripe.
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Size: 1024 |
Author: guofuqiang |
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Description: 基于凌阳mcu图像识别 可识别颜色距离 大小-Sunplus mcu based image recognition can identify the size of the color distance
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Size: 116736 |
Author: xiaoyuan |
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Description: 本代码实现多视频下的目标识别的方法。使用了颜色直方图特征，并计算巴氏距离得出目标是否匹配。可以使用背景较为简单的视频进行实现。-The code to achieve the target recognition method of multiple video. Color histogram, and calculates the the Pap distance derived target match. Can use relatively simple background video realization.
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Size: 22152192 |
Author: wang |
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Description: 这里介绍的是一种直方图的比较方法。EMD算法，这里不同于我们熟知的目标检测算法，这里EMD的全称是Earth Mover s Distance，即陆地移动距离，是一种度量准则。光线变化能引起颜色直方图的漂移，引起颜色值位置发生变化，这时候一些直方图的比较匹配策略失效。EMD算法本身是一个通用的算法，它实际上度量的是怎样讲一个直方图的形状转变为另一个直方图的形状，包括直方图的部分（或全部）到一个新的位置，可以在直方图任何维的直方图上进行这种度量。
有关EMD陆地移动距离的具体内容可参考：Learning openCV 之 陆地移动距离，或参考后面附的论文。
另，这种方法是不是可以改进粒子滤波算法，有待进一步探讨。
-Here is a histogram method. EMD algorithm is different from our well-known target detection algorithm, here the full name of EMD is the Earth Mover, s Distance, land mobile distance is a measure of the guidelines. Lighting changes can cause the color histogram of the drift, caused by position changes of color values , this time some of the histogram matching strategy failure. EMD algorithm itself is a generic algorithm, it is actually measured is how to tell a histogram shape into another histogram shape, including part of the histogram (or all) to a new location in the histogram on any dimensions of the histogram of this measure.
Related to the specific content of the EMD land mobile distance: the Learning openCV land mobile distance, or refer to the back of the accompanying papers.
Another, this approach is not to improve the particle filter algorithm to be further explored.
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Size: 2048 |
Author: 宁静 |
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Description: 了一种火灾图像的颜色提取算法。根据色彩空间(R ,G,B)到(H , I ,S)的变换公式和颜色相似距离的概
念 ,先将彩色图像量化为256色 ,再根据颜色距离提取色彩。试验证明该方法计算简单 ,处理速度快 ,为进一步进行火灾图像
的识别奠定了基础。-A fire image color extraction algorithm. According to the color space (R, G, B) to (H, I, S) of the transformation formula and color similar to the concept of the distance, the first color image quantized to 256 colors, the color and then extracted according to the color distance. Proved that the method is simple, fast processing speed, and laid the foundation for further identification of fire image.
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Size: 508928 |
Author: azen112 |
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Description: Color segmentation using Mahanalobis distance
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Size: 1024 |
Author: Jobin |
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Description: Color Distance for Linux.
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Size: 4096 |
Author: diubunron |
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Description: 英伟达公司的CUDA实例代码，用CUDA实现了KNN和NLM的图片降噪算法，包含了整个对应的工程文件。-Sample: Image denoising
Minimum spec: SM 1.0
This sample demonstrates two adaptive image denoising techniques: KNN and NLM, based on computation of both geometric and color distance between texels. While both techniques are implemented in the DirectX SDK using shaders, massively speeded up variation of the latter technique, taking advantage of shared memory, is implemented in addition to DirectX counterparts.
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Size: 7152640 |
Author: 张帆 |
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Description: color distance in opencv -> deltaE2-color distance in opencv -> deltaE2000
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Size: 2048 |
Author: moregun |
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Description: 本源码是基于MATLAB实现车牌识别并语音播报。
本系统针对家庭小型车蓝底白字车牌进行识别。根据彩色图像的RGB比例定位出近似蓝色的候选区域。但是由于RGB三原色空间中两点间的欧氏距离与颜色距离不成线性比例，在设定蓝色区域的定位范围时不能很好的控制。因此造成的定位出错是最主要的。这样在图片中出现较多的蓝色背景情况下识别率会下降，不能有效提取车牌区域。对此本文提出了自适应调节方案。对分割出来的区域进行识别调整。根据长宽比，蓝白色比对候选区域进行多次定位。最终找到车牌区域。
对字符正确识别之后，用事先对对每一个字符的录音根据对应字符顺序播放。在对车牌区域识别出错、字体分割出错时程序暂停，并有语音提醒。-The source is based on MATLAB license plate recognition and voice broadcast. The system for the small family car blue and white license plate recognition. Approximate positioning of the blue color candidate area based on the ratio of RGB images. However, due to the RGB color space, the Euclidean distance between two points is not a linear scale and color distance, in the blue region of the positioning range setting is not well controlled. Therefore, the positioning error is the main cause. This appears in the picture under a blue background more recognition rate will drop, can not effectively extract the license plate area. This paper presents an adaptive adjustment program. On the segmented regions to identify adjustments. According to the aspect ratio, blue and white area than the candidate repeatedly positioning. Finally found the license plate area. After correctly identify the characters, prior to use for recording each character according to the corresponding sequence of characte
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Size: 24704000 |
Author: longfei |
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Description: 这篇文章是关于基于颜色与空间距离的置信度传播立体匹配算法-this article is about stereo matching using color and space distance
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Size: 1142784 |
Author: 李伊一 |
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