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This program finds the edges of a color image by converting the original image to YCbCr color space. Basic edge detection technique used is canny.
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数字图像的边缘检测
本科毕业设计(边缘检测是数字图像处理中的重要内容。本文首先对图像的边缘检测的各种算法和算子做了总结和分析。Canny最早提出了边缘检测的三条连续准则:最优检测结果、最优定位和低重复响应,并在这些准则的基础上得到了“最优线性滤波器”―高斯函数的一阶导数。经过十几年的发展,目前已经有了对这个准则的很多改进,本文也对这个方面的工作做了小结。Demigny在理论分析和实践的基础上给出了边缘检测的离散准则,并且证明在离散准则中Canny提出的第三个准则可以被阀值操作所取代。本文利用
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本文主要介绍的是基于边缘检测技术的字符轮廓线的提取和显示-In this paper, the edge detection technique is based on the character contour extraction and display
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Convolution filtering is a technique that can be used for a wide array of image processing
tasks, some of which may include smoothing and edge detection. In this document we show
how a separable convolution filter can be implemented in NVIDIA CUD
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图像边缘检测技术综述,图像边缘检测技术综述-Technique of edge detection, edge detection technology review
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图像边缘检测技术研究,了解图像分割的必备知识。对进一步学习图像处理技术是很好的文档-Edge detection technique, the necessary knowledge to understand image segmentation. Further study on image processing technology is well documented
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The Canny edge detection operator was developed by John F. Canny in 1986 and uses a multi-stage algorithm to detect a wide range of edges in images. Most importantly, Canny also produced a computational theory of edge detection explaining why the tec
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使用canny边缘检测技术对单个图片中的指纹进行检测并识别-Canny edge detection technique using a single image of the fingerprint detection and identification
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处理彩色图像,得到红,绿,蓝三个通道的效果, 并得到饱和度和亮度的图像,以及做伪彩色图像处理(分配不同的颜色
不同的灰色水平),还有边缘检测技术-Processing color images, get the red, green, and blue channels of the results, and get saturation and brightness of images, and do pseudo-color image processing (assigned a di
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基于VisualC++的自适应边缘检测技术,做项目是自己写的,可能效果不能使所有图片检测出完美边缘-Adaptive edge detection technique based on VisualC++, the project is to write your own, perhaps it can not make all the pictures to detect a perfect edge
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本文主要探讨了中值滤波以及高斯滤波两个空间低通滤波器,结合unsharp masking,、Canny 算子、Sobel算子、以及Laplace算子研究了高通滤波器的特性,掌握了边缘检测技术的原理,并对这一系列技术进行了对比。
doc文档最后附有USM、Sobel等算子实现的matlab源代码-This paper discusses the median filtering and Gaussian filtering both spatial low-pass filter, combi
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HOG即histogram of oriented gradient, 是用于目标检测的特征描述子,该技术将图像局部出现的方向梯度次数进行计数,该方法和边缘方向直方图、scale-invariant feature transform类似,不同的是hog的计算基于一致空间的密度矩阵来提高准确率。Navneet Dalal and Bill Triggs首先在05年的CVPR中提出HOG,用于静态图像or视频的行人检测。-HOG i.e. histogram of oriented gradien
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