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This is one of those "if you can't beat 'em, join 'em" changes.

Photo filters are literal filters that you snap over the top of a camera lens.  They work by filtering (or in some cases, emphasizing) specific wavelengths of light, which allows for dramatic light capture that cannot be reproduced in post.

Photoshop provides a weird mimicry of these filters in its "Image > Adjustments > Photo Filter" tool.  I originally tried to outdo Photoshop by providing a much more comprehensive list of filters in PhotoDemon's version of the tool, complete with each filter's full technical name and descriptions.

Unfortunately, that made this tool an extraordinary translation burden, with 70 phrases comprising nearly 400 words of text for a single esoteric dialog.  (For perspective, that's more than 4% of PhotoDemon's total language file!)

This was insanity, and today I finally reworked this dialog to simply reproduce the same options as Photoshop.  That's the primary purpose of this tool, after all - to provide a "drop-in" replacement for Photoshop tutorials that require it.  It was silly of me to overcomplicate it in the first place, and I apologize to my translators for such an overkill implementation.

The new version of this tool is leaner, cleaner, and faster.  While here, I reworked the algorithm to operate exclusively in the CieLAB color space, which produces a higher-quality transform than Photoshop at an even faster speed than PD's old implementation.  The result is more dramatic lighting regardless of which "filter" you're applying, with especially improved results when trying to e.g. warm up a very cool photo (or cool a photo with very warm tones).
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README.md

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Stable (8.4) Nightly (9.0-a) Source code
Download (.zip, 13 MB) Download (.zip, 13 MB) Download (.zip, 17 MB)

About PhotoDemon 8.4

PhotoDemon is a portable photo editor. It is 100% free and 100% open-source.

  1. Overview
  2. What makes PhotoDemon unique?
  3. What's new in nightly builds
  4. Contributing
  5. Licensing

Overview

Screenshot

PhotoDemon provides a comprehensive photo editor in a 13 MB download. It runs on any Windows PC (XP through Win 10) and it does not require installation. It runs just fine from a USB stick, SD card, or portable drive.

PhotoDemon is open-source and available under a permissive BSD license. Contributors have translated the program into more than a dozen languages.

You can support PhotoDemon's ongoing development through Patreon or with a one-time donation.

New contributions from coders, designers, translators, and enthusiasts are always welcome.

What makes PhotoDemon unique?

Lightweight and completely portable

No installer is provided or required. Aside from a temporary folder – which you can specify from the Tools > Options menu – PhotoDemon leaves no trace on your hard drive. Many users run PhotoDemon from a USB stick or portable drive.

Integrated macro recording and batch processing

Complex editing actions can be recorded as macros (similar to Office software). A built-in batch processor lets you apply macros to entire folders of images.

Usability is paramount

Many open-source photo editors are usability nightmares. PhotoDemon tries not to be. Small touches like real-time effect previews, save/load presets on all tools, unlimited Undo/Redo, "Fade last action", keyboard accelerators, mouse wheel and X-button support, and descriptive icons make it fast and easy to use.

Pro-grade features and tools

  • Extensive file format support, including Adobe Photoshop (PSD) images and all major camera RAW formats
  • Color-managed workflow, including full support for embedded ICC profiles
  • Advanced multi-layer support, including editable text layers and non-destructive layer modifications
  • On-canvas tools: digital paintbrushes, clone and pattern brushes, interactive gradients, and more
  • Adjustment tools: levels, curves, HDR, shadow/highlight recovery, white balance, Wratten filters, and many more
  • Filters and effects: perspective correction, edge detection, noise removal, real-time content-aware blur, unsharp masking, green screen, lens diffraction, vignetting, and many more
  • More than 200 tools are provided in the current build.

Limitations

  • PhotoDemon isn't designed for operating systems other than Microsoft Windows. A compatibility layer like Wine may allow it to work on OSX, Linux, or BSD systems, but program stability and performance may suffer.

What's new in nightly builds

Azure DevOps builds GitHub last commit GitHub commits since latest release

PhotoDemon 8.4 just released, so nightly builds don't have much to report (yet)!

For a detailed list of recent changes, check the project's commit log.

Contributing

Ongoing PhotoDemon development is made possible by donations from users like you!

My Patreon campaign is one way to donate. Donating through Patreon comes with extra benefits, like in-depth updates on new PhotoDemon features. To learn more, visit PhotoDemon’s Patreon page.

I am also extremely grateful for one-time donations. A secure donation page is available at photodemon.org/donate. Thank you!

If you can contribute in other ways (language translations, bug reports, pull requests, etc), please create a new issue at GitHub. A full list of (wonderful!) contributors is available in AUTHORS.md.

Licensing

PhotoDemon is BSD-licensed. This allows you to use its source code in any application, commercial or otherwise, if you supply proper attribution. Proper attribution includes a notice of copyright and disclaimer of warranty.

PhotoDemon uses some 3rd-party open-source libraries. These libraries are found in the /App/PhotoDemon/Plugins folder. These libraries have their own licenses, separate from PhotoDemon.

Full licensing details are available in LICENSE.md.

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