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wezterm/docs/examples/cmd-synopsis-wezterm-imgcat--help.txt
Wez Furlong e048410491
imgcat: add resize and resample functionality
This is primarily to improve the chances of displaying an arbitrary
image without resorting to additional external tools, that may be
difficult or impossible to install.

refs: #3716
refs: #3264
2023-07-17 10:55:53 -07:00

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Output an image to the terminal
Usage: wezterm imgcat [OPTIONS] [FILE_NAME]
Arguments:
[FILE_NAME]
The name of the image file to be displayed. If omitted, will attempt
to read it from stdin
Options:
--width <WIDTH>
Specify the display width; defaults to "auto" which automatically
selects an appropriate size. You may also use an integer value `N` to
specify the number of cells, or `Npx` to specify the number of pixels,
or `N%` to size relative to the terminal width
--height <HEIGHT>
Specify the display height; defaults to "auto" which automatically
selects an appropriate size. You may also use an integer value `N` to
specify the number of cells, or `Npx` to specify the number of pixels,
or `N%` to size relative to the terminal height
--no-preserve-aspect-ratio
Do not respect the aspect ratio. The default is to respect the aspect
ratio
--position <POSITION>
Set the cursor position prior to displaying the image. The default is
to use the current cursor position. Coordinates are expressed in cells
with 0,0 being the top left cell position
--no-move-cursor
Do not move the cursor after displaying the image. Note that when used
like this from the shell, there is a very high chance that shell
prompt will overwrite the image; you may wish to also use `--hold` in
that case
--hold
Wait for enter to be pressed after displaying the image
--tmux-passthru <TMUX_PASSTHRU>
How to manage passing the escape through to tmux
[possible values: disable, enable, detect]
--max-pixels <MAX_PIXELS>
Set the maximum number of pixels per image frame. Images will be
scaled down so that they do not exceed this size, unless
`--no-resample` is also used. The default value matches the limit set
by wezterm. Note that resampling the image here will reduce any
animated images to a single frame
[default: 25000000]
--no-resample
Do not resample images whose frames are larger than the max-pixels
value. Note that this will typically result in the image refusing to
display in wezterm
--resample-format <RESAMPLE_FORMAT>
Specify the image format to use to encode resampled/resized images.
The default is to match the input format, but you can choose an
alternative format
[default: input]
[possible values: png, jpeg, input]
--resample-filter <RESAMPLE_FILTER>
Specify the filtering technique used when resizing/resampling images.
The default is a reasonable middle ground of speed and quality.
See
<https://docs.rs/image/latest/image/imageops/enum.FilterType.html#examples>
for examples of the different techniques and their tradeoffs.
[default: catmull-rom]
[possible values: nearest, triangle, catmull-rom, gaussian, lanczos3]
--resize <WIDTHxHEIGHT>
Pre-process the image to resize it to the specified dimensions,
expressed as eg: 800x600 (width x height). The resize is independent
of other parameters that control the image placement and dimensions in
the terminal; this is provided as a convenience preprocessing step.
Resizing animated images will reduce the image to a single frame.
The `--resample-filter` and `--resample-format` options give some
control over the quality of the resizing operation and the image
format used.
--show-resample-timing
When resampling or resizing, display some diagnostics around the
timing/performance of that operation
-h, --help
Print help (see a summary with '-h')