一个来自 kmiya 的 SIXEL 编码器/解码器实现（https://GitHub.com/saitoha/sixel）。
This package provides encoder/decoder implementation for DEC SIXEL graphics, and some converter programs.
(https://youtu.be/0SasrQ7pnbA)
SIXEL is one of image formats for printer and terminal imaging introduced by Digital Equipment Corp. (DEC). Its data scheme is represented as a terminal-friendly escape sequence. So if you want to view a SIXEL image file, all you have to do is "cat" it to your terminal.
On 80's real hardware terminals, it tooks unbearable long waiting times to display images. But nowdays, with high-speed CPU and broadband network, we got the chance to develop a new scope of SIXELs.
img2sixel(1) can decode GIF animation.
Now Youtube video streaming is available over SIXEL protocol by FFmpeg-SIXEL project. Above demo only uses 16 color registers.
SDL1.2-SIXEL project makes enable you to operate various GUI applications on the terminal.
You can play "The Battle for Wesnoth" over SIXEL protocol.
You can run QEMU on SIXEL terminals.
SDL1.2-SIXEL can collaborate with XSDL-SIXEL.
Furthermore some information of SIXEL-ready SDL applications are reported.
converter.py example depends on it.
Used by mruby-webcam.
A perl6 bindings for libsixel
Rust FFI bindings for libsixel
A safe Rust wrapper for libsixel
Total Idris 2 bindings for libsixel
img2sixel(1) can be integrated with Debian's w3m(maintained by Tatsuya Kinoshita) that includes patches for -sixel option derived from Arakiken's w3m fork(remoteimg branch).
@uobikiemukot's sdump project selected another approach. He wrote a w3mimgdisplay compatible program yaimg-sixel. It also works with ranger.
Xsixel is a kdrive server implementation for SIXEL terminals.
Arakiken's GNU Screen fork(sixel branch) works with SIXEL-supported applications including above products. This project is now in progress. GUI flavored SIXEL applications will integrated with existing terminal applications on it.
See also on youtube.
Some NetBSD/OpenBSD users are doing amazing challenges.
Now mikutter + mikutterm works with libsixel inline-image extension.
SIXEL works with old powerless machines such as
NetBSD/luna68k (here is OMRON LUNA-II):
NetBSD/hp300 (here is HP9000/425e):
arakiken's tw(tw-sixel) works with libsixel inline-image extension.
SIXEL works with old powerless machines such as OpenBSD/luna88k (here is OMRON LUNA-88K2 MC88100@33MHz):
sayaka-chan(PHP version) works with libsixel inline-image extension.
SIXEL works with old powerless machines such as NetBSD/x68k (here is SHARP X68030 with 060turbo):
SIXEL works even in-kernel console. @isaki68k wrote a patch for ite(4).
Includes 2 commands fricas2sixel and latex2sixel.
Now sixel backend is implemented.
See https://github.com/dylanaraps/neofetch/wiki/Image-Backends#sixel
Depends on sixel-sys, --converter=sixel option is supported.
Simple scripts and development environment for realtime edit-previewing for dot, svg, markdown, ...etc.
A sixel image dumper, provides pdf previewer.
SIXEL video driver is provided if you build it with --enable-sixel option.
(screenshot)
Former sixel encoders(such as ppmtosixel) are mainly designed for dot-matrix printers. They minimize the amount of printer-head movement distance. But nowadays this method did not represent the best performance for displaying sixel data on terminal emulators. SIXEL data for terminals were found in 80's Usenet, but the technology of how to create them seems to be lost. kmiya's sixel introduces the encoding method which is re-designed for terminal emulators to optimize the overhead of transporting SIXEL with keeping compatibility with former SIXEL terminal. Now libsixel and ImageMagick's sixel coder follow it.
@arakiken, known as the maintainer of mlterm, describes about the way to generate high quality SIXEL, which is adopted by libsixel (http://mlterm.sourceforge.net/libsixel.pdf, in Japanese).
img2sixel(1) supports color image quantization. It works well even if few number of colors are allowed.
If you want to view a SIXEL image, you have to get a terminal which support sixel graphics.
Now SIXEL feature is supported by the following terminals.
DEC VT series, VT240/VT241/VT330/VT340/VT282/VT284/VT286/VT382
DECterm(dxterm)
Kermit
ZSTEM 340
WRQ Reflection
RLogin (Japanese terminal emulator)
mlterm
http://mlterm.sourceforge.net/
Works on each of X, WIN32 GDI, framebuffer, Android, Cocoa version.
XTerm (compiled with --enable-sixel-graphics option)
http://invisible-island.net/xterm/
You should launch xterm with "-ti vt340" option.
The SIXEL palette is limited to a maximum of 16 colors.
To avoid this limitation, Try
$ echo "XTerm*decTerminalID: vt340" >> $HOME/.Xresources
$ echo "XTerm*numColorRegisters: 256" >> $HOME/.Xresources
$ xrdb $HOME/.Xresources
$ xterm
or
$ xterm -xrm "XTerm*decTerminalID: vt340" -xrm "XTerm*numColorRegisters: 256"
yaft
recterm (ttyrec to GIF converter)
seq2gif (ttyrec to GIF converter)
Mintty (>= 2.6.0)
wezterm https://github.com/wez/wezterm
iTerm2 (>= 3.0.0) https://gitlab.com/gnachman/iterm2
yaft-cocoa https://github.com/uobikiemukot/yaft-cocoa
You can install libsixel via the following package systems.
$ ./configure
$ make
# make install
You can configure with the following options
…
For more information, see "./configure --help".
You can build a windows binary in cross-build environment.
$ CC=i686-w64-mingw32-gcc cross_compile=yes ./configure --host=i686-w64-mingw32
$ make
…
Convert a jpeg image file into a sixel file
$ img2sixel < images/egret.jpg > egret.sixel
Reduce colors to 16:
$ img2sixel -p 16 < images/egret.jpg > egret.sixel
Reduce colors with fixed palette:
$ img2sixel -m images/map16.png < images/egret.jpg > egret.sixel
Usage: sixel2png -i input.sixel -o output.png
sixel2png < input.sixel > output.png
Options:
-i, --input specify input
暂无开放 Issues，或尚未同步最近议题。