DaltonLens

You are #colorblind? Check out the open source DaltonLens app for desktop! Available for macOS, Windows and Linux. github.com/DaltonLens/Dal…

@Apokrupto One small suggestion: add an easy way to toggle the original image. Moving the slider back and forth works but it's hard to come back to the exact same %.

¡𝑵𝒆𝒘 𝑨𝒑𝒑 𝑨𝒍𝒆𝒓𝒕! Introducing MySight, a real time colourblindness simulator for iPhone and iPad. apps.apple.com/app/mysight-cv…

@Apokrupto Congrats! Upgraded my phone to iOS 15 to test it :) I really like what you've done with the personalized CVD profile. I don't know how much you've tested it, but it found 47% protanopia for me, which is totally consistent with my past observations.

Only remaining issue is that is relies on alpha manipulation, and so it only works when the source graphics is opaque.

SVG filters make it easy to implement CVD simulation in the browser. However tritanopia simulation is very wrong with the common single matrix filters. Here is how the much more accurate Brettel et al. 1997 method can be implemented with SVG filters: daltonlens.org/cvd-simulation…

We're collecting feedback on this reddit thread . If you are #colorblind (especially if strong and/or a tritanope), please come to help validate color blindness simulations. It is the basis for accurate digital accessibility! reddit.com/r/ColorBlind/c…

Also, missing the required sRGB decoding looks very wrong to my eyes (thanks @ChromeDevTools for fixing that super quickly in Google Chrome #c47" target="_blank" rel="nofollow noopener">bugs.chromium.org/p/chromium/iss…)

Some popular color blindness simulation methods are actually very inaccurate. I've built an online simulator that compares the 7 most common methods. daltonlens.org/colorblindness…

DaltonLens is now in the Windows 10 app store (free) to avoid certificate issues #activetab=pivot:overviewtab" target="_blank" rel="nofollow noopener">microsoft.com/en-us/p/dalton…

Just released v2.3 with fixes for high-dpi monitors and nicer fonts on retina displays github.com/DaltonLens/Dal…

@Apokrupto Thanks for letting me know! It should be fixed now

⁦@DaltonLens⁩ I just tried to comment one one of your articles, but got this.

It was very fun to dive into color blindness simulations with an interactive @ProjectJupyter notebook and publish it with #fastpages . Thanks @jeremyphoward @HamelHusain! daltonlens.org/understanding-…

libDaltonLens is a single-file, zero dependencies, public domain C library with a unit tested implementation of the reference Brettel 1997 and Viénot 1999 #colorblindness simulation algorithms. github.com/DaltonLens/lib…

Feedback very welcome :)

DaltonLens also has a tool to highlight pixels with similar colors that works for anti-aliased lines, which is very useful to read color-coded charts and plots.

You are #colorblind? Check out the open source DaltonLens app for desktop! Available for macOS, Windows and Linux. github.com/DaltonLens/Dal…

Happy to kick off daltonlens.org! Open source tools and technical articles to help and understand #colorblind people.