1 bit color depth

:slight_smile: hi all, this is probably a really dumb question, but I want to create images using 1 bit (literally just black and white, not transparency, nothing, 2 indexed colors) and I’m having trouble getting y head around how to do it in Krita.

It seems to want to start from 8bit, which is fine for a minimised index, but I really do want just black and white (I’m doing some oled screen tiles, and although this is only the second day using Krita, I’m pretty much converted :wink: )

So, I can use ImageMagick’s convert utility to correct this afterwards (eg something like convert image.png -depth 1 -type bilevel BMP3:result2.bmp) but I’d prefer to add a profile or color space or whatever Krita needs to add the additional Bit Depth option in New File.

any ideas?

Hi @Mr_Bonce!

Unfortunately I can’t tell you if this is really possible, the developers might be able to help.
I might have a workaround just for the “artwork part” of it:

You can use a Filter layer on top of everything, set it to Threshold. Then it should make it at least look like true 1 bit black and white. While painting, everything over 50% value will be white, everything under 50% will be black. I use that often to just block in compositions.

Also, if that works out for you, you could set yourself a template up. Make your document as you please, then click “File” - “Create Template from image…” and you can start from there every time without needing to always set it up by hand.

Hope it helps somehow.
Welcome to the Krita community! :slight_smile:

The only file format that is really 1bit black and white that krita supports is xbm. Internally, a Krita image is always at least 8 bit grayscale, so @TheFlow’s suggestion is probably the best when actually creating the image.

Hi

Another solution is to use pixel brushes: no antialiasing, no shades of grey (or other colors).

There’s some default pixel brushes provided with Krita, but you can also use @Rakurri brushes set, there’s pixels brushes that can help you.

Grum999

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