Jump to content
You must now use your email address to sign in [click for more info] ×

Affinity Photo - convert to hard black/white, suggested workflow

Recommended Posts

I'd be grateful for suggestions on how to replicate the workflow I currently have with Photoshop for processing these images. I do a lot of laser engraving work, and for that I need crisp black/white bitmaps which I can trace (in Inkscape) to produce a vector file. Input image is e.g. a photo of a woodcut engraving, an ink sketch etc. In Photoshop, I first change the mode to grayscale, then use the brightness/contrast dialog with "Use Legacy" ticked, maximum contrast, and adjust the brightness to get the desired amount of edge detail. Then obviously touch up the final image manually.

This process has worked great, but I'm trying to find a way to replicate it in Affinity Photo.

The brightness/contrast adjustment doesn't have something comparable to the "legacy" option. So if I crank contrast up to 100, it doesn't give dead black/whites. Is there any way of doing this?

I finally tried using the posterise adjustment with 2 colors, which sort of does the trick, but I can't adjust the "threshold" like I could by adjusting the brightness slider.

On a separate note, Photoshop has a very useful filter called Median, under noise reduction. When this is applied to a black/white image, it sort of smooths out the edges, which makes tracing a lot better. Anything like this in Affinity?


Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

Terms of Use | Privacy Policy | Guidelines | We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.