Imageoptim for jpg install#
Imageoptim for jpg software#

:strip - Remove all auxiliary chunks (defaults to true).

:interlace - Interlace: true - interlace on, false - interlace off, nil - as is in original image (defaults to false).

:level - Optimization level preset: 0 is least, 7 is best (defaults to 6).

:jpegrescan - Use jpegtran through jpegrescan, ignore progressive option (defaults to false).

:progressive - Create progressive JPEG file (defaults to true).

:copy_chunks - Copy all chunks (defaults to false).

:quality - JPEG quality preset: 0 - low, 1 - medium, 2 - high, 3 - veryhigh (defaults to 3).

:allow_lossy - Allow worker, it is always lossy (defaults to false).

100, ignored in default/lossless mode (defaults to 100)

:max_quality - Maximum image quality factor 0.

:strip - List of extra markers to strip: :comments, :exif, :iptc, :icc or :all (defaults to :all).

:allow_lossy - Allow limiting maximum quality (defaults to false).

Imageoptim for jpg software#

:careful - Avoid bugs with some software (defaults to false).

:level - Compression level: 1 - light and fast, 2 - normal, 3 - heavy (slower) (defaults to 3).

:interlace - Interlace: true - interlace on, false - interlace off, nil - as is in original image (defaults to running two instances, one with interlace off and one with on).

:level - Compression level: 0 - don't compress, 1 - fast, 2 - normal, 3 - extra, 4 - extreme (defaults to 4).

Worker can be disabled by passing false instead of options hash or by setting option :disable to true.

:cache_worker_digests - Also cache worker digests along with original file digest and worker options: updating workers invalidates cache.

:allow_lossy - Allow lossy workers and optimizations (defaults to false).

:skip_missing_workers - Skip workers with missing or problematic binaries (defaults to false).

:pack - Require image_optim_pack or disable it, by default image_optim_pack will be used if available, will turn on :skip-missing-workers unless explicitly disabled (defaults to nil).:verbose - Verbose output (defaults to false).:threads - Number of threads or disable (defaults to number of processors).Paths can be changed using :config_paths option and -config-paths argument. image_optim.yml in current working directory $XDG_CONFIG_HOME/image_optim.yml (by default ~/.config/image_optim.yml).ConfigurationĬonfiguration in YAML format will be read and prepended to options from two paths: Image optimization can be time consuming, so depending on your deployment process you may prefer to optimize original asset files. PATH='/Applications/ImageOptim.app/Contents/MacOS:$PATH' image_optim *.jpgĮNV = '/custom/location:#).Ĭheck available options in options section. PATH='/custom/location:$PATH' image_optim *.jpg Specify custom bin location using XXX_BIN environment variable ( JPEGOPTIM_BIN, OPTIPNG_BIN, …).īesides permanently setting environment variables in ~/.profile, ~/.bash_profile, ~/.bashrc, ~/.zshrc, … they can be set:

Imageoptim for jpg install#

If you cannot install to common location, then install to custom one and add it to PATH. Simplest way for image_optim to locate binaries is to install them in common location present in PATH (see Binaries installation). If you want to check latest changes: gem ' image_optim ', :git => ' git:///toy/image_optim.git ' Binaries location With version: gem ' image_optim ', ' ~> 0.23 ' With image_optim_pack: gem ' image_optim ' gem ' image_optim_pack ' You may also want to install image_optim_pack (see Binaries pack). jpegtran from Independent JPEG Group's JPEG libraryĭocumentation for latest version and master.(will use zopfli on default/maximum level 4) Optimize (lossless compress, optionally lossy) images (jpeg, png, gif, svg) using external utilities: