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Downloads of v 1.0.1:


Last Update:

11 Jan 2022

Package Maintainer(s):

Software Author(s):

  • Lucian Sabo


riot image optimization jpeg gif png compression embedded

Radical Image Optimization Tool

  • 1
  • 2
  • 3

1.0.1 | Updated: 11 Jan 2022



Downloads of v 1.0.1:



Software Author(s):

  • Lucian Sabo

Radical Image Optimization Tool 1.0.1

  • 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 as a Note:

At least one file within this package has greater than 0 detections, but less than 5

Learn More

Deployment Method: Individual Install, Upgrade, & Uninstall

To install Radical Image Optimization Tool, run the following command from the command line or from PowerShell:


To upgrade Radical Image Optimization Tool, run the following command from the command line or from PowerShell:


To uninstall Radical Image Optimization Tool, run the following command from the command line or from PowerShell:


Deployment Method:


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

1. Enter Your Internal Repository Url

(this should look similar to https://community.chocolatey.org/api/v2/)

2. Setup Your Environment

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

2. Get the package into your environment

  • 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 https://community.chocolatey.org/api/v2/. 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. Copy Your Script

choco upgrade riot -y --source="'INTERNAL REPO 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 riot -y --source="'INTERNAL REPO URL'" 

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

Exit $exitCode

- name: Install riot
    name: riot
    version: '1.0.1'
    state: present

See docs at https://docs.ansible.com/ansible/latest/modules/win_chocolatey_module.html.

chocolatey_package 'riot' do
  action    :install
  source   'INTERNAL REPO URL'
  version  '1.0.1'

See docs at https://docs.chef.io/resource_chocolatey_package.html.

cChocoPackageInstaller riot
    Name     = "riot"
    Version  = "1.0.1"
    Source   = "INTERNAL REPO URL"

Requires cChoco DSC Resource. See docs at https://github.com/chocolatey/cChoco.

package { 'riot':
  ensure   => '1.0.1',
  provider => 'chocolatey',
  source   => 'INTERNAL REPO URL',

Requires Puppet Chocolatey Provider module. See docs at https://forge.puppet.com/puppetlabs/chocolatey.

4. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

Package Approved

This package was approved by moderator TheCakeIsNaOH on 03 Feb 2022.


Radical Image Optimization Tool (RIOT for short) is a free image optimizer that will let you to visually adjust compression parameters while keeping minimum filesize.

It uses with a side by side (dual view) or single view interface to compare the original with the optimized image in real time and instantly see the resulting file size.

It is lightweight, fast and simple to use, yet powerful for advanced users. You will be able to control compression, number of colors, metadata settings and much more, and select image format (JPG, GIF or PNG) for your output file.



  • open many image types including Adobe Photoshop PSD, HDR, RAW and rare/scientific types (up to 128 bpp, integer and floating point)
  • save and optimize JPEG, GIF and PNG with a simple, clean user interface
  • automatic optimization selects the most suitable format and parameters
  • works in dual view: (original + optimized image) or single view (optimized image).
  • in-place compare function (alternativelly display the original image over the optimized image to notice small pixel changes)
  • compress files to desired filesize threshold
  • fast processing (all is done in memory); see instant results including resulting filesize
  • batch support (process multiple files at once)
  • transparency handling options
  • decide if you want to keep metadata (comments, IPTC, Adobe XMP, EXIF profiles, ICC profiles). Unsupported metadata is removed
  • transfer metadata between image formats (destination format must support them)
  • common tools: pan and zoom, rotate, flip
  • basic image adjustments: brightness, contrast, gamma, invert
  • visually reduce number of unique colors for PNG and GIF images in order to reduce filesize (two quantization methods are available: Xiaolin Wu and NeuQuant neural net)
  • resize image by using well known resample filters (ex: Lanczos3, Catmull Rom, Bicubic, and others)
  • out-of-the-box support for external PNG optimizers (optipng, pngout, etc)
  • compression and results are comparable to those of commercial products, even higher.
  • Adaptive logarithmic tone mapping algorithm (Drago) used for HDR images

Breaking change

There is no longer an installer for a 32-bit version of RIOT. Accordingly, this package will only install/upgrade on 64-bit systems.

$ErrorActionPreference = 'Stop'

if (Get-ProcessorBits -compare 64) {
   $toolsDir   = Split-Path -parent $MyInvocation.MyCommand.Definition
   $fileLocation = (Get-ChildItem -Path $toolsDir -Filter '*.exe').FullName

   $packageArgs = @{
      packageName    = $env:ChocolateyPackageName
      fileType       = 'EXE'
      file           = $fileLocation
      softwareName   = "$env:ChocolateyPackageName*"
      silentArgs     = '/S'
      validExitCodes = @(0)
   Install-ChocolateyInstallPackage @packageArgs

   Remove-Item $fileLocation -ea 0 -force

} else {
   Throw 'There is no RIOT installer other than for 64-bit systems, so RIOT cannot be installed/upgraded on this computer.'
$ErrorActionPreference = 'Stop'

$packageArgs = @{
  packageName   = $env:ChocolateyPackageName
  softwareName  = 'riot*'
  fileType      = 'EXE'
  silentArgs   = '/S'
  validExitCodes= @(0)

[array]$key = Get-UninstallRegistryKey -SoftwareName $packageArgs['softwareName']

if ($key.Count -eq 1) {
  $key | % { 
    $packageArgs['file'] = "$($_.UninstallString)"
    Uninstall-ChocolateyPackage @packageArgs
} elseif ($key.Count -eq 0) {
  Write-Warning "$env:ChocolateyPackageName has already been uninstalled by other means."
} elseif ($key.Count -gt 1) {
  Write-Warning "$($key.Count) matches found!"
  Write-Warning "To prevent accidental data loss, no programs will be uninstalled."
  Write-Warning "Please alert package maintainer the following keys were matched:"
  $key | % {Write-Warning "- $($_.DisplayName)"}

From: inside installer download


A. Radical Image Optimization Tool End User License Agreement

Radical Image Optimization Tool End User License Agreement


Grantor: Lucian Sabo [hereafter “author”]

Product: RIOT [hereafter “the Product”] is a set of computer programs, information, tutorials, and help files [hereafter “Product Elements”] designed to optimize and save computer images.

Grant:The author hereby grants a nonexclusive license to use this Product on the following terms:

Free License: The license for this version of the Product requires no payment by the user to The author or any other party.
However if you do enjoy it or use it in your company, please consider a small donation to the developer for his time and efforts to make this software possible and support further development.

Technical support: Because this license is granted to the user for no cost, the user is not entitled to free technical support from The author.

License: The user is allowed to use all of the programs, data, and documentation included with this Product.

You may:

-install and use any or all Product Elements included in the Product, as specified in the individual Terms of Use or License for each Product Element;
-copy the Product, provided that such copies contain all the original Product's contents and proprietary notices.
-place the Product in his original package on the Internet or any other public access network;
-use RIOT.DLL in your applications as a plugin and deploy it, provided that such copies contain all the original Product's contents and proprietary notices and you have a written consent from the author for your specific application.

You may not:

-extract portions of a Product Element not permitted by the Terms of Use or Licenses for the Product Element;
-sell licenses for the Product;
-include the Product or any Product Element in any other collection or other product without the author's consent;
-remove any proprietary notices on the Product or on any Product Element.
-gain any revenue directly or indirectly from using this product unless this is specifically permitted by the AUthor

Title: Title, ownership rights, and intellectual property rights in and to the Product and all component works within it shall remain to The author or the original copyright holders. The Product and all Product Elements within it are protected by the copyright laws of the European Union and international copyright treaties.

Warranty: The author provides no warranties for the Product, but if used as directed and in conjunction with the operating systems for which it was designed, the Product should substantially achieve the functionality described in the documentation. The author does not warrant that your use of the Product will be uninterrupted or that its operation will be error free. In no event shall The author or any Contributors be liable to the licensed user for any special, indirect, incidental, or consequential damages, including (but not limited to) loss of revenues or loss of profits.

Copyright © 2004-2021 Lucian Sabo
Rev: 21 Jan 2021
tools\Permission to distribute RIOT.pdf
md5: 6CC1F9CA55B51776BA88C07D67B9DDF1 | sha1: 654DFDDA569502E5C1B920F424DB842894523713 | sha256: F44879E33DBC9F5C5D69CA265EC4E44E2E87F400FBD0C20C23E4FE00BDDF8BC9 | sha512: 426D553A76939346B89D6909933D3FAF375DF67CE07F45219A1BB0EE4BA1A1A435C7A997A75AEB2E3B0E713737B3B98F7E97633D75CC3C5C90F51022EAF1B391
md5: AC48EC7C3A58F0441640B335FC2B54F7 | sha1: F1758817F916861DE8F9C6A8F88B24A45D584B44 | sha256: CE377521A2B72F3FB4E5A36F587F3015BC6A30DC15353694821CD6DE858FF909 | sha512: 73F5D90E9919B27B033DA012856AEDAD309E13D1C91532A5A4484C0D3A2F50A52434C24737BD5A5DBA0CF0077E2B881945E5BC09AB6C3869E65848628DFFC7CE
Verification is intended to assist the Chocolatey moderators and community
in verifying that this package's contents are trustworthy.
The installer should download when loading this page:  

There is a direct link to a dynamic DropBox URL on that page as well

Version  : 1.0.1
CheckSum : ce377521a2b72f3fb4e5a36f587f3015bc6a30dc15353694821cd6de858ff909

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.

Add to Builder Version Downloads Last Updated Status
Radical Image Optimization Tool 0.6.2 390 Wednesday, December 30, 2020 Approved

This package has no dependencies.

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  • This discussion is only about Radical Image Optimization Tool and the Radical Image Optimization Tool package. If you have feedback for Chocolatey, please contact the Google Group.
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  • Tell us what you love about the package or Radical Image Optimization Tool, or tell us what needs improvement.
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