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polar-coordinate-transformation
将图像从笛卡尔坐标系上转换到对数极坐标上，这样做便于将笛卡尔坐标系上存在缩放和旋转关系的图像转换成对数极坐标下的具有平移关系的图像，然后就可以用相位相关检测算法进行相关检测，得到两幅图像的相关性(Convert an image Cartesian to polar coordinates on a logarithmic, this facilitates the translation relations image with the next image conversion to a logarithmic scale and rotate relationship exists between the Cartesian coordinates polar coordinates, then you can use phase correlation detection algorithm for correlation detection, the correlation between two images obtained)
- 2021-01-22 15:08:40下载
- 积分：1
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伪彩色图像增强软件
基于MATLAB的伪彩色图像增强的简单gui程序(A simple GUI program for pseudo color image enhancement based on MATLAB)
- 2018-05-13 23:23:14下载
- 积分：1
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NJW
NJW算法，普聚类算法，利用3种拉普拉斯矩阵，作用在自制的数据集上(failed to translate)
- 2011-09-19 12:23:57下载
- 积分：1
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level-set
水平集方法的实例演示,对于初学水平集的朋友有很多帮助。(Examples demonstrate the level set method, the level set for the beginner friends have a lot of help.)
- 2014-07-04 23:05:19下载
- 积分：1
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sar_sift
说明： SAR SIFT图像配准算法。yishiliuhuasheng/sar_sift(SAR sift image registration algorithm. yishiliuhuasheng/sar_ sift)
- 2020-11-20 09:39:37下载
- 积分：1
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liver_ultr
Abstract—Noninvasive ultrasound imaging of carotid plaques
allows for the development of plaque-image analysis methods associated
with the risk of stroke. This paper presents several plaqueimage
analysis methods that have been developed over the past
years. The paper begins with a review of clinical methods for visual
classification that have led to standardized methods for image
acquisition, describes methods for image segmentation and denoizing,
and provides an overview of the several texture-feature
extraction and classification methods that have been applied. We
provide a summary of emerging trends in 3-D imaging methods
and plaque-motion analysis. Finally, we provide a discussion of the
emerging trends and future directions in our concluding remarks.
- 2013-10-28 12:36:04下载
- 积分：1
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wenzifenge
复杂背景下文字分割程序的源代码，可以很好的对文字进行分割(Text Segmentation in Complex Background program' s source code, can be a good segmentation of text)
- 2009-11-06 17:35:53下载
- 积分：1
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Canny
本压缩包有canny算子的源程序代码和测试图片。(The archive has canny operator of the source code and test images.)
- 2008-07-24 11:22:50下载
- 积分：1
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rectify-tutorial
matlab环境下的立体图像校正程序，目的是要消除例如图像对的垂直视差(matlab environment three-dimensional image correction procedures, such as the purpose is to eliminate the image of the vertical parallax)
- 2008-08-02 15:33:23下载
- 积分：1
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chepaidingwei
使用说明
使用时打开此例题目录下pic中的图片，然后依次单击按钮“转”、“1”、“2”、“3”、“4”和“5”，就可以实现精确的车牌定位。
具体步骤
1.24位真彩色->256色灰度图。
2.预处理:中值滤波。
3.二值化:用一个初始阈值T对图像A进行二值化得到二值化图像B。
初始阈值T的确定方法是:选择阈值T=Gmax-(Gmax-Gmin)/3,Gmax和Gmin分别是最高、最低灰度值。
该阈值对不同牌照有一定的适应性,能够保证背景基本被置为0,以突出牌照区域。
4.削弱背景干扰。对图像B做简单的相邻像素灰度值相减,得到新的图像G,即Gi,j=|Pi,j-Pi,j-1|i=0,1,…,439 j=0,1,…,639Gi,0=Pi,0,左边缘直接赋值,不会影响整体效果。
5.用自定义模板进行中值滤波
区域灰度基本被赋值为0。考虑到文字是由许多短竖线组成,而背景噪声有一大部分是孤立噪声,用模板(1,1,1,1,1)T对G进行中值滤波,能够得到除掉了大部分干扰的图像C。
6.牌照搜索:利用水平投影法检测车牌水平位置,利用垂直投影法检测车牌垂直位置。
7.区域裁剪,截取车牌图像。()
- 2008-06-10 10:17:08下载
- 积分：1
