Description: OTSU方法计算图像二值化的自适应阈值，OTSU 算法可以说是自适应计算单阈值（用来转换灰度图像为二值图像）的简单高效方法。下面的代码最早由 Ryan Dibble提供，此后经过多人Joerg.Schulenburg, R.Z.Liu 等修改，补正。算法对输入的灰度图像的直方图进行分析，将直方图分成两个部分，使得两部分之间的距离最大。划分点就是求得的阈值。都是老外写的，经典哦。-OTSU images calculated value of the two adaptive threshold, OTSU algorithm can be calculated adaptive threshold (for conversion to gray scale images binary images), a simple and efficient manner. The following code from the earliest to provide Ryan Dibble, after a more than Joerg.Schulenburg, R. Z. Liu amend the correction. Algorithm for the importation of gray-scale image histogram analysis of histogram is divided into two parts, Part 2 makes the distance between the largest. Demarcation point out the threshold. Foreigners are written in the classical oh. Platform: |
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Author:陈其星 |
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Description: 基于常用的灰度变换法和直方图均衡化法等图像增强算法,提出了一种对比度增强算法.该算法首先对直方图进行平滑处理,再进行直方图均衡化,然后在整个显示范围内对图像灰度级进行等间距排列,最后对图像进行中-Gray-scale transformation based on common law and the histogram equalization method, such as image enhancement algorithm, a contrast enhancement algorithm. The algorithm first histogram smoothing processing, and then histogram equalization, and then displayed in the entire range of image gray level spacing, etc. with the final image in Platform: |
Size: 1024 |
Author:ivy |
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Description: 自己编写的ksw算法，希望对大家有用啊。这是一个急于二维直方图的程序-I have written KSW algorithm, in the hope that everyone ah useful. This is a rush to process two-dimensional histogram Platform: |
Size: 1024 |
Author:郑伟 |
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Description: 基于Matlab的典型图像增强算法的源码
程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
P0309：运用5种不同的梯度增强法进行图像锐化
P0310：图像的高通滤波和掩模处理
P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理-They are typical Matlab-based image enhancement algorithm.
Procedure Code Description
P0301: digital image data display matrix and its Fourier transform
P0302: Two-dimensional discrete cosine transform image compression
P0303: the use of gray-scale transformation method of contrast-enhanced images
P0304: Histogram of homogenization
P0305: analog image by Gaussian white noise and salt and pepper noise
P0306: A two-dimensional median filter function by medfilt2 of salt and pepper noise image filtering
P0307: the use of MATLAB s function affected by noise interference filter2 images mean filter
P0308: Image Adaptive Weiner Filter
P0309: the use of five kinds of different gradient enhanced image sharpening method
P0310: Image of high-pass filtering and mask treatment
P0311: the use of Butterworth (Butterworth) low pass filter on the image noise by smoothing treatment
P0312: the use of Butterworth (Butterworth) high-pass filter for sharpening Platform: |
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Author:panghuanzhi |
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Description: hai I m doing digital image processing project in matlab. so I wnat source code for edge dector algorithm, color histogram and texture algorithm using matlab related source code. Platform: |
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Author:tnp |
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Description: 程序实现Matlab下爬山法(hill-climbing)方法，用于彩色图像分割。-mage is first converted to CIE lab color space and the 3d color histogram is generated. Hill-climbing algorithm is used to find the local maximums in lab histogram, which is used to automatically decide the cluster number K as well as initial seeds for
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Author:steven |
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Description: 随着多媒体、网络技术的迅速发展，图像信息的应用日益广泛，对规模越来越大的图像数据库、可视信息进行有效的管理成为迫切需要解决的问题，灵活、高效、准确的图像检索策略是解决这一问题的关键技术之一。因此，基于内容的图像检索已成为国内外学者研究的主要热点问题，并取得了不少的成果。
本文主要对当今热门的基于内容的图像检索技术进行了研究，重点对它的算法进行研究。在半年的时间里，通过查阅很多相关的资料，并认真学习了基于内容的图像检索的基本理论，特别是深入研究了颜色直方图理论和累加直方图算法，最后在MATLAB平台下编程实现此系统，该系统可以实现基本图像检索的功能，根据用户输入的样本图像来与图像库中的图像进行特征匹配，然后找出与样本图像距离比较小的若干幅图像，并按照图像之间的距离由小到大的顺序显示给用户。
经过对该系统进行反复的调试运行后，该系统所实现的功能基本达到了设计目标，并且运行良好。当用户提供出所要查询的关键图后，系统就可以从用户提供的图像库中检索到与关键图相似的图片并排序返回给用户，达到了预期效果。
-With the rapid development of the multimedia and the network technology, the image information becomes more widely available, increasing the size of the image database, visual information for effective management of an urgent need to address the problem, flexible, efficient and accurate image retrieval strategy solve this problem one of the key technologies. The researchers are so keen on Content-Based Image Retrieval that they have made much progress.
In this paper, today s popular content-based image retrieval technology is analyzed. And it mainly focuses on the research of its algorithm. In a period of half a year, Through access to relevant information and to seriously study the content-based image retrieval of the basic theory, in particular, in-depth study of the color histogram theory and cumulative histogram algorithm. Finally, this system should be implemented under the platform of the MATLAB by programming. In this system, the basic image retrieval functions can be achieved. Platform: |
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Author:qichao |
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Description: 基于Processed histogram的人脸识别方法，方法简单，识别率高，参考文献“Face Recognition using processed histogram and phase only correlation”-Recognizing objects from large image databases, histogram based methods have proved simplicity and usefulness in last decade. Initially, this idea was based on color histograms that were launched by swain. This algorithm presents the first part of our proposed technique named as “Histogram processed Face Recognition”. Platform: |
Size: 4342784 |
Author:GJ |
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Description: These are Digital Image processing algorithm implementation in Matlabs. Following are the Matlab Codes attached:
Butterworth Filter in Frequency Domain
Gaussian Filter in Frequency Domain
Homomorphic Filter
Laplacian Transform
Histogram Equalization Function
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Size: 4096 |
Author:Rizwan |
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Description: In this project ,we propose a color based segmentation method that uses the c means clustering technique to track tumor objects in magnetic resonance (MR) brain images. The key concept in this color based segmentation algorithm with k means means to convert a given gray level MR image in to a color space image and then separate the position of tumor objects from other items of an MR image by using c means clustering
And histogram clustering .Experiments demonstrates that the method can successfully achieve segmentation for MR brain images to help pathologists distinguish exactly lesion size and region.
-In this project ,we propose a color based segmentation method that uses the c means clustering technique to track tumor objects in magnetic resonance (MR) brain images. The key concept in this color based segmentation algorithm with k means means to convert a given gray level MR image in to a color space image and then separate the position of tumor objects from other items of an MR image by using c means clustering
And histogram clustering .Experiments demonstrates that the method can successfully achieve segmentation for MR brain images to help pathologists distinguish exactly lesion size and region.
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Author:pramod |
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Description: CLAHE: contrast limited adaptive histogram equalization is one of the most famous algorithm in image enhancement Platform: |
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Author:Alisaberi |
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Description: 根据国外文献算法中所写的MATLAB代码，实现肤色检测与轮廓提取。-According to foreign literature written in MATLAB code algorithm to achieve skin color detection and contour extraction. Platform: |
Size: 6144 |
Author:舒 |
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Description: Hand gesture recogntion Algorithm:-
This histogram-based algorithm tries to detect if the hand is not raised, raised, diagonally down, raised straight, or raised diagonally up and much more. Platform: |
Size: 417792 |
Author:danan |
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Description: 程序可实现人眼虹膜、眼睑及睫毛分割，主要功能有：（1）虹膜内外圆的霍夫圆检测；（2）眼睑检测以及参数方程的求解；（3）睫毛的最优化阈值处理。
vc文件夹下包含以下四个内容：（1）最后编译生成的.exe文件；（2）包含主要算法的.h头文件；（3）两幅原始图像（yangjing1.bmp,yanjing2.bmp）；（4）两幅经过MATLAB进行自适应直方图均衡化的图像（yanjing11.bmp,yanjing22.bmp）-Program can achieve human iris, eyelids and eyelashes segmentation, the main features are: (1) iris inside and outside the circle Hough circle detection (2) eyelid detection and parameter equation (3) the optimal threshold eyelash treatment. vc folder contains the following four elements: (1) generated by the final compilation. exe files (2) contains the main algorithm. h header files (3) the two original image (yangjing1.bmp, yanjing2.bmp) (4) After two MATLAB adaptive histogram equalization image (yanjing11.bmp, yanjing22.bmp) Platform: |
Size: 154624 |
Author:郭卉 |
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Description: 在matlab环境下实现的直方图均衡化算法，用于图像增强，注释详细，程序易懂-Histogram equalization algorithm in Matlab environment for image enhancement, detailed notes, the program easy to understand Platform: |
Size: 1024 |
Author:sunyk |
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Description: 本文主要对当今热门的基于内容的图像检索技术进行了研究，重点对它的算法进行研究。在半年的时间里，通过查阅很多相关的资料，并认真学习了基于内容的图像检索的基本理论，特别是深入研究了颜色直方图理论和累加直方图算法，最后在MATLAB平台下编程实现此系统，该系统可以实现基本图像检索的功能，根据用户输入的样本图像来与图像库中的图像进行特征匹配，然后找出与样本图像距离比较小的若干幅图像，并按照图像之间的距离由小到大的顺序显示给用户。-This paper focuses on today' s most popular content-based image retrieval techniques are studied, with emphasis on its algorithm research. In six months time, through access to a lot of relevant information, and carefully study the content-based image retrieval of the basic theory, particularly in-depth study of the color histogram and cumulative histogram algorithm theory, and finally in the MATLAB programming platform to implement this system The system can achieve the basic function of image retrieval, based on user input sample images and pictures of the image feature matching, then find and relatively small sample image from several images, and in accordance with the distance between the images from the small to large order to the user. Platform: |
Size: 3686400 |
Author:周佳森 |
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Description: 该课题是基于MATLAB平台的图像去雾处理，配备一个人机交互GUI界面，可以选择局部直方图均衡化，全局直方图均衡化，Retinex算法，通过对比处理前、后的图像的直方图，而直方图是一副图像各灰度值在0-256的分布个数的表，信息论已经整明，具有均匀分布直方图的图像，其信息量是最大的。
二、算法介绍
①全局直方图均衡化：通俗地理解就是，不管三七二十一，直接强行对彩色图像的R,G,B三通道颜色进行histeq均衡处理，然后进行三通道重组；
②局部直方图均衡化：设置一个固定大小的滑块，分别对彩色图像进行R,G,B三通道进行逐个像素地平滑处理，然后重组三通道，当然这样做的，虽然实现了图像的去雾效果，但是以部分像素曝光作为牺牲补偿。
③Retinex算法：通俗地讲就是，分离R,G,B三通道，对每个通道进行卷积滤波。(This project is based on MATLAB platform image defogging processing, equipped with a human-computer interactive GUI interface, you can choose local histogram equalization, global histogram equalization, Retinex algorithm, by comparing the histogram of the image before and after processing, and the histogram is a table of the number of gray value distribution in 0-256, information theory has been clear, with uniform distribution histogram Image, its information is the largest.) Platform: |
Size: 7448576 |
Author:MATLAB道长 |
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Search - algorithm histogram in matlab