"图像如何分割"版本比较

版本2和3间的区别

点、线、边缘的检测

点、线、边缘的检测常用空域滤波的方法进行。

$R = w_1z_1+w_2z_2+\dots +w_9z_9=\sum_{i-1}^{9}w_iz_i$

1. 检测孤立点

-1 -1 -1
-1  8 -1
-1 -1 -1

latex error! exitcode was 1 (signal 0), transscript follows:

This is pdfTeX, Version 3.141592653-2.6-1.40.25 (TeX Live 2023/Debian) (preloaded format=latex)
entering extended mode
(./latex_be84fe6f53742b0084afaedebc7042f4c873982b_p.tex
LaTeX2e <2023-11-01> patch level 1
L3 programming layer <2024-01-22>
(/usr/share/texlive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2023/05/17 v1.4n Standard LaTeX document class
(/usr/share/texlive/texmf-dist/tex/latex/base/size12.clo))
(/usr/share/texlive/texmf-dist/tex/latex/base/inputenc.sty)
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsmath.sty
For additional information on amsmath, use the `?' option.
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amstext.sty
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsgen.sty))
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsbsy.sty)
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsopn.sty))
(/usr/share/texlive/texmf-dist/tex/latex/l3backend/l3backend-dvips.def)
No file latex_be84fe6f53742b0084afaedebc7042f4c873982b_p.aux.
! Undefined control sequence.
l.8 $$|R| \gt
              T$$
[1] (./latex_be84fe6f53742b0084afaedebc7042f4c873982b_p.aux) )
(see the transcript file for additional information)
Output written on latex_be84fe6f53742b0084afaedebc7042f4c873982b_p.dvi (1 page,
 296 bytes).
Transcript written on latex_be84fe6f53742b0084afaedebc7042f4c873982b_p.log.

g = abs(imfilter(f, w)) >= T;

如何检测图像中的直线？
如何检测图像中的边缘？
如何进行阈值分割？如何选取阈值？
什么是区域生长？如何进行区域分裂与合并？

-  ⇤ ← 于2008-02-23 15:34:18修订的的版本2 → 
  大小: 198
  编辑: localhost
  备注: converted to 1.6 markup
+   ← 于2008-06-10 13:53:00修订的的版本3 → ⇥
  大小: 518
  编辑: czk
  备注:
-删除的内容标记成这样。
+加入的内容标记成这样。
 行号 1:
+== 点、线、边缘的检测 ==
点、线、边缘的检测常用空域滤波的方法进行。{{{#!latex
$$R = w_1z_1+w_2z_2+\dots +w_9z_9=\sum_{i-1}^{9}w_iz_i$$ 
}}}

=== 检测孤立点 ===
{{{
-1 -1 -1
-1  8 -1
-1 -1 -1
}}}

{{{#!latex
$$|R| \gt T$$
}}}

{{{
g = abs(imfilter(f, w)) >= T;
}}}