
image analysis
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digital image histogram in image analysis
one important use of the digital image histogram is to see the contrast. Here, I recommend an article.点击打开链接 http://hamamatsu.magnet.fsu.edu/articles/digitalimagebasics.htmlThrough this article, we c...转载 2018-03-27 18:42:03 · 217 阅读 · 0 评论 -
histogram equalization examples
reference: 点击打开链接 https://blog.youkuaiyun.com/xiajun07061225/article/details/6910129example:original image:after histogram:we can see that the contrast of the latter image is higher than that of the origina...转载 2018-03-28 12:31:50 · 366 阅读 · 0 评论 -
Matlab中的 imread 函数
imread : read image from graphics files 该定义为mathworks 的官方定义点击打开链接 https://uk.mathworks.com/help/matlab/ref/imread.htmlm= imread('2.jpg'); % revise the file name herefigure('NumberTitle', 'off', 'Nam...原创 2018-03-28 13:01:56 · 8776 阅读 · 1 评论 -
数字图像处理 -灰度变换 之 对数变换(Log Transformation)
本文参考了 以下这篇文章[数字图像处理]灰度变换——反转,对数变换,伽马变换,灰度拉伸,灰度切割,位图切割 https://blog.youkuaiyun.com/zhoufan900428/article/details/12709361并进行了一下改进。以上为上述文章 的原话,这里展示出对数变换的code 和 figure,Matlab Code:f = 0:0.01:1;v1 = 1;y1 = lo...转载 2018-03-29 10:04:46 · 40276 阅读 · 0 评论 -
数字图像处理 -灰度变换 之 gamma变换(gamma transformation)
Reference: https://blog.youkuaiyun.com/zhoufan900428/article/details/12709361 The gamma transformation is different from log transformation. Its code is similar to that of the last blog. Its figure is as fo...转载 2018-03-29 11:09:00 · 13696 阅读 · 3 评论 -
matlab fspecial 函数用法
本篇文章全部转载自matlab fspecial 用法解释https://blog.youkuaiyun.com/majinlei121/article/details/50255837以下为全部内容, 转载!!!!!Matlab 的fspecial函数用法fspecial函数用于建立预定义的滤波算子,其语法格式为:h = fspecial(type)h = fspecial(type,para)其中...转载 2018-03-29 15:30:29 · 1747 阅读 · 0 评论 -
Image Analysis: Hough Transform 图像处理之 霍夫变换
最近在学习图像处理这门课,根据自己的理解写一下这方面的内容,如对所写内容有疑问,欢迎随时批评指正。这篇文章主要介绍霍夫变换。 下面我用一个简单的例子来进行说明。下图中直线表达式为 y = k * x + b, (k = 2, b = 1). 从左到右依次为 A1(-0.5,0), A2(0,1), A3(0.5,2), A4(1,3).根据霍夫变换,A1-A4对应的直线分别为:A1: b = -k...原创 2018-04-18 16:59:52 · 460 阅读 · 0 评论