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Last Update:

13 May 2018

Package Maintainer(s):

Software Author(s):

  • x128


png compression image-optimisation image-processing batch-processing png-optimization

Color Quantizer

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  • 3 | Updated: 13 May 2018



Downloads of v



Software Author(s):

  • x128

  • 1
  • 2
  • 3
Color Quantizer

  • 1
  • 2
  • 3

Some Checks Have Failed or Are Not Yet Complete

Not All Tests Have Passed

Validation Testing Passed

Verification Testing Passed


Scan Testing Resulted in Flagged:

This package was submitted (and approved) prior to automated virus scanning integration into the package moderation processs.

We recommend clicking the "Details" link to make your own decision on installing this package.


To install Color Quantizer, run the following command from the command line or from PowerShell:


To upgrade Color Quantizer, run the following command from the command line or from PowerShell:


To uninstall Color Quantizer, run the following command from the command line or from PowerShell:


NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Enter your internal repository url

(this should look similar to

4. Choose your deployment method:

choco upgrade color-quantizer -y --source="'STEP 3 URL'" [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:

choco upgrade color-quantizer -y --source="'STEP 3 URL'"

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0

Exit $exitCode

- name: Ensure color-quantizer installed
    name: color-quantizer
    state: present
    source: STEP 3 URL

See docs at

chocolatey_package 'color-quantizer' do
  action    :install
  version  ''
  source   'STEP 3 URL'

See docs at

    Name: color-quantizer,
    Source: STEP 3 URL

Requires Otter Chocolatey Extension. See docs at

cChocoPackageInstaller color-quantizer
   Name     = 'color-quantizer'
   Ensure   = 'Present'
   Version  = ''
   Source   = 'STEP 3 URL'

Requires cChoco DSC Resource. See docs at

package { 'color-quantizer':
  provider => 'chocolatey',
  ensure   => '',
  source   => 'STEP 3 URL',

Requires Puppet Chocolatey Provider module. See docs at

salt '*' chocolatey.install color-quantizer version="" source="STEP 3 URL"

See docs at

5. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

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This package was approved by moderator gep13 on 14 May 2018.


Color quantizer - a small program makes it easy to optimize your images for the web. Key features: + converting any number of colors + Supports writing png8 with alpha transparency + the opportunity to set a mask for quality critical areas + convenient editing palette + Batch optimization

Please Note: This is an automatically updated package. If you find it is out of date by more than a day or two, please contact the maintainer(s) and let them know the package is no longer

. (Join-Path (Split-Path -parent $MyInvocation.MyCommand.Definition) 'helpers\GetMenuStartPath.ps1')

# stop on all errors
$ErrorActionPreference = 'Stop';

$packageTitle   = "Color Quantizer"
$packageName    = "color-quantizer"
$url            = ""
$checksum       = "9676fa4c0187779921249ddff6f09eea0bbe66733aa784e628e854ac8d4ad4a2"
$checksumType   = "sha256"
$installDir     = Join-Path $(Get-ToolsLocation) "$packageName"
$startMenu      = GetMenuStartPath

# install zip package
Install-ChocolateyZipPackage `
  -PackageName $packageName `
  -Url $url `
  -UnzipLocation $installDir `
  -Checksum $checksum `
  -ChecksumType $checksumType `

# add Start Menu shortcut
New-Item "$startMenu\Programs\$packageTitle" `
    -type directory `

Install-ChocolateyShortcut `
    -shortcutFilePath   "$startMenu\Programs\$packageTitle\$packageTitle.lnk" `
    -targetPath         "$installDir\cq.exe"
. (Join-Path (Split-Path -parent $MyInvocation.MyCommand.Definition) 'helpers\GetMenuStartPath.ps1')

$packageTitle = "Color Quantizer"
$packageName  = "color-quantizer"
$installDir   = Join-Path $(Get-ToolsLocation) "$packageName"
$startMenu    = $(GetMenuStartPath)

Remove-Item "$installDir" -Force -Recurse
Remove-Item "$startMenu\Programs\$packageTitle" -Force -Recurse
# ====================================================
# GetMenuStartPath
# ====================================================
# Grabs Menu Start location from registry.
# @return   {string}    Menu Start path
# ====================================================

Function GetMenuStartPath(){
  return (Get-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders")."Start Menu"

Log in or click on link to see number of positives.

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.

Version Downloads Last Updated Status
Color Quantizer 500 Monday, August 3, 2015 Approved

This package has no dependencies.

Discussion for the Color Quantizer Package

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  • This discussion is only about Color Quantizer and the Color Quantizer package. If you have feedback for Chocolatey, please contact the Google Group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
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  • Tell us what you love about the package or Color Quantizer, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
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