this post was submitted on 17 Jan 2026
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Today I Learned

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https://www.bvdm-online.de/bvdm/branchenportal/technik-innovation/normen-und-standards/standardwerke/roman16-bvdm-reference-images-en

The RGB versions of the three black and white images can be used to check the grey reproduction and the black composition of CMYK printing profiles. A sample application is a black and white ad printed in four colours for better contrast.

The CMYK versions of the three black and white images can be used to assess the grey reproduction, the mid-tone spread and the ink trapping of a print run.

The grey scale versions of the three black and white images, in turn, can be used to assess the black simulation of a digital proof printing system. Besides black ink, such systems also use the chromatic colours to simulate single-colour printing with black ink. This can lead to different colour casts in different tonal value ranges of the proof print.

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[–] SayJess@lemmy.blahaj.zone 26 points 3 days ago* (last edited 3 days ago)

When I worked at a print shop, we had to calibrate the copiers every morning. It involved printing out a scale of colors and using a device that determined whether a color was correct. Before the device, we did it manually, for the blacks. For the colors, the copiers printed several sheets that we then put through the copiers scanner, which calibrated. There were deviations rarely.

Edit: clarified a few things, now that I thought about it.

[–] khannie@lemmy.world 13 points 3 days ago (2 children)

One of his buttons is a QR code.

[–] brown567@sh.itjust.works 4 points 2 days ago

It scans to text: "almost there"

[–] blueamigafan@lemmy.world 11 points 3 days ago (1 children)

I always think they look like Pokémon gym leaders whenever I print these at work

[–] arrow74@lemmy.zip 3 points 2 days ago

A gym leader carrying around an eel pokemon in a wicker basket. Petty cool

[–] Kolanaki@pawb.social 10 points 3 days ago (1 children)
[–] SpaceNoodle@lemmy.world 6 points 3 days ago (2 children)

Humans are quite sensitive to green.

[–] sik0fewl@piefed.ca 5 points 2 days ago

I'm not being sensitive, you’re being sensitive!

[–] fujiwood@lemmy.world 2 points 2 days ago

Isn't it a survival trait?

Since we used to live in the forests, it allowed us to see prey and predator amongst all the green.

[–] MummifiedClient5000@feddit.dk 9 points 3 days ago (1 children)

The Romans figured that out?

[–] MagicShel@lemmy.zip 5 points 2 days ago

Romans 16:B8F

[–] PlaidBaron@lemmy.world 6 points 2 days ago (1 children)

This better not awaken anything in me.

[–] stoicmaverick@lemmy.world 3 points 2 days ago

...again...

[–] rizzothesmall@sh.itjust.works 5 points 3 days ago

I work for a huge printing company and normally when onboarding a new brand or processing tests for product changes we will get whole books full of these.

We also have a large library of images put together by the Devs of holidays, weddings, days out etc. to provide a little more variation in our tests.

[–] Tiuku@sopuli.xyz 2 points 2 days ago

Love the pike. Clearly it's essential for print quality evaluation.