IMAGE COLOR SUMMARIZER 是一个颜色分析工具，这个工具
可以快速分析出一张图片的前X种颜色颜色（最多10种）的占比，以及各种维度如 RGB、HSB、CMYK等。
效果如下
image.png
下载
wget http://mkweb.bcgsc.ca/color-summarizer/download/colorsummarizer-0.77.tgz
mkdir -p ~/Software/colorsummarizer
cd ~/Software/colorsummarizer
tar xvfz colorsummarizer-0.77.tgz
ln -s colorsummarizer-0.77 current
export PATH=~/software/colorsummarizer/current/bin:$PATH
. ~/.bash_profile
验证
# usage
> colorsummarizer -help
# man page
> colorsummarizer -man
如果出现下方错误
/bin/env: bad interpreter: No such file or directory
可以修改 bin/colorsummarizer 首行
首先 ln env
sudo su
cd /bin
ln -s /usr/bin/env env
exit
将文件首行
#!/bin/env perl
改为
#!/usr/bin/env perl
或验证 Perl 的地址
which perl
/usr/local/bin/perl
将首行改为
#!/usr/bin/env perl
如果出现类似下方的错误，那么可能需要安装 Perl 以及一些模块
Can't locate Some::Module.pm in @INC ...
使用 cpan 命令安装 perl 提示缺失的模块
> cpan
> install Some::Module
如果安装过程一切正常就说明成功了，再次验证即可，不过正常还需要安装它所有依赖的 Circos
“ circos是使用Perl语言编写，采用GPL许可，可以运行于任何有Perl语言解释器的操作系统（如 Windows, Mac OS X, Linux 及其他类UNIX系统）的免费软件。它可以轻易地根据纯文本的配置文件，将用户的输入数据转化为像素图片(PNG)或矢量图片(SVG)。
所处理的可视化图形
image.png
安装
下载circos, 完成后将文件移至 ~/Software/circos/:
wget http://circos.ca/distribution/circos-0.69-6.tgz
mkdir -p ~/Software/circos
mv ./circos-0.69-6.tgz ~/Software/circos
配置 PATH
cd ~/Software/circos
tar xvfz circos-0.69-6.tgz
ln -s circos-0.69-6 current
export PATH=~/Software/circos/current/bin:$PATH
. ~/.bash_profile
安装依赖库
可用 brew 快速安装 libpng、libjpeg、freetype、libgd
brew install libpng
brew install libjpeg
brew install freetype
brew install libgd
如果没有 brew 也可以编译安装，或先安装 Home brew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
install libpng
mkdir ~/Software/src/libpng
cd ~/Software/src/libpng
wget http://prdownloads.sourceforge.net/libpng/libpng-1.6.26.tar.gz
tar zxfv libpng-1.6.26.tar.gz
rm libpng-1.6.26.tar.gz
ln -s libpng-1.6.26 current
cd current
./configure
make
sudo make install
install libjpeg
mkdir ~/Software/src/libjpeg
cd ~/Software/src/libjpeg
wget http://www.ijg.org/files/jpegsrc.v9b.tar.gz
tar zxfv jpegsrc.v9b.tar.gz
rm *.gz
ln -s jpeg-9b current
cd current
./configure
make
sudo make install
install freetype
mkdir ~/Software/src/freetype
cd ~/Software/src/freetype
wget http://circos.ca/distribution/lib/freetype-2.4.0.tar.gz
tar zxfv freetype-2.4.0.tar.gz && rm freetype-2.4.0.tar.gz
ln -s freetype-2.4.0 current
cd current
./configure
make
sudo make install
** install libgd **
. ~/.bash_profile
mkdir ~/Software/src/libgd
cd ~/Software/src/libgd
wget https://github.com/libgd/libgd/releases/download/gd-2.2.3/libgd-2.2.3.tar.gz
tar xfvz ./libgd-2.2.3.tar.gz
ln -s libgd-2.2.3/ current
cd current
./configure --without-fontconfig --disable-werror --prefix=/opt/local
make
sudo make install
sudo cpan
cpan[1]> install GD
cpan[2]> exit
gdlib-config --all
## gdlib-config: warning: this script is deprecated; please use the pkg-config file instead.
## GD library 2.2.3
## includedir: /usr/local/include
## cflags: -I/usr/local/include
## ldflags: -L/usr/X11/lib
## libs: -lz -L/usr/local/lib -lpng16 -L/usr/local/lib -lfreetype -lfontconfig -ljpeg -lXpm -liconv
## libdir: /usr/local/lib
## features: GD_GIF GD_GIFANIM GD_OPENPOLYGON GD_ZLIB GD_PNG GD_FREETYPE GD_FONTCONFIG GD_JPEG GD_XPM
验证，并安装缺失的 perl module
circos -modules
## ok 1.29 Carp
## ok 0.36 Clone
## missing Config::General
## ok 3.62 Cwd
## ok 2.154 Data::Dumper
## ok 2.52 Digest::MD5
## ok 2.84 File::Basename
## ok 3.62 File::Spec::Functions
## ok 0.2304 File::Temp
## ok 1.51 FindBin
## missing Font::TTF::Font
## ok GD
## missing GD::Polyline
## ok 2.39 Getopt::Long
## ok 1.16 IO::File
## ok 0.33 List::MoreUtils
## ok 1.38 List::Util
## missing Math::Bezier
## ...
安装缺失的模块
sudo cpan
cpan[1]> install Config::General
cpan[2]> install Font::TTF::Font
cpan[3]> install Math::Bezier
cpan[4]> install Math::VecStat
cpan[5]> install Readonly
cpan[6]> install SVG
cpan[7]> install Set::IntSpan
cpan[8]> install Statistics::Basic
cpan[9]> install Text::Format
...
cpan[*]> exit
运行实例，测试是否安装成功**
cd ~/Software/circos/current/example
./run
open circos.png
成功后打开图片将能看到
image.png
如果示例出现问题，可能是 GD 安装问题，手动安装
wget http://search.cpan.org/CPAN/authors/id/L/LD/LDS/GD-2.51.tar.gz
tar xfvz ./GD-2.51.tar.gz
cd GD-2.51/
perl Makefile.PL
make
sudo make install
Circos 安装成功后，验证 Color summarizer
➜ colorsummarizer-0.77 ./bin/colorsummarizer -help
Usage:
# output format XML, text or JSON
colorsummarizer -image img/ferns-100.jpg -xml
colorsummarizer -image img/ferns-100.jpg -text
colorsummarizer -image img/ferns-100.jpg -json
# get image size
colorsummarizer -image img/ferns-100.jpg -info
# process all images in a directory
colorsummarizer -dir "images/*jpg"
# resize input image
colorsummarizer -image img/ferns-100.jpg -width 50 -text
…
根据帮助提示的命令可以验证颜色工具的提取功能
colorsummarizer -image img/ferns-100.jpg -json
{
"data" : {
"color0" : "#4B8C2B",
"color1" : "#5EA735",
"color2" : "#7ECC4E",
"color3" : "#336D19"
}
}
成功！
可以开心的去处理图片色值的可视化数据了。