Processing inked artwork with Photoshop

— An article about: - Digital - Photoshop - Process - Techniques

The artwork is inked and scanned, ready to be processed on the computer. Again, there’s plenty of ways to go for it. If the scanned artworks resolution is big enough for your end projects, Photoshop will do just fine to create your final image. Here’s the workflow I use most of the time. It which relies on fill layers and layer masks to make is super easy to pick colors for the final piece.

The process also focuses on working non-destructively, through masks, adjustments layers and painting on new layers. It would be a shame to mess things up after spending so much time sketching and inking the piece. Ctrl-Z will only go back so far, it’s safer this way. Plus this makes things more flexible.

Importing the artworks

First part is obviously bringing in the scans into your new Photoshop document (File>Place or just dropping them there). If you inked the artwork on multiple sheets (to separate the letters and their ornaments for example), you’ll need to set the upper layers blending mode to Multiply to make the white part transparent and let the lower ones appear through. Don’t forget to adjust their positioning if the scans aren’t quite aligned properly, and to mask out any part that had to be redrawn on another layer.

Once everything is there, the process can start. Depending on your artwork and how things overlap, you might have to repeat the steps for each of the layers.

Importing scans

Black & white

Layer masks are black and white images attached to a layer to control which part of it appears. White displays the corresponding area of the layer, black hides it (and grey values give some transparency). So the first step is to get our inked scans proper black & white, with values ranging from pure black to pure white.

This requires two layers:

  1. A Black and White layer, that will convert the scan to greyscale. I usually just go with the Auto setting for this one.
  2. A Levels layer that will make sure the values go from pure black to pure dark. The graph shows the range of values on the image, black on the left and white to the right. Adjusting the toggles under the horizontal axis, you map the current values to a new range turning any value before the black toggle into proper black and any after the light one into proper white.

Black and white adjustment

Fix details

The scan might have some undesired imperfections (small dots of ink or unnoticed dust on the scanner window, misplaced stroke, lines not quite at the right angle…). Before going any further, let’s clean things up!

On a separate layer (to keep avoiding any unrecoverable damage), you can:

  • cover small dots & imperfections with some digital Brush strokes
  • use the Stamp tool to erase some misplaced stroke along the edges of a letter, while keeping the texture.

When it comes to moving things, cutting the area and pasting them on a separate layer to move it around is the most non-destructive method I could find. Probably worth working on a duplicate layer to keep safe.

If things don’t quite have the right size though, using the transform tool to stretch them (on a separate layer, again) is a risky business. It’ll alter the width of the strokes, which might make them look different than their neighbours. The Puppet Warp tool (and lots of patience) might save a trip back to the drawing board, but sometimes, it’s just best to redraw, re-ink and re-scan the part.

Prepare for masking

At this stage, the artwork is clean, with values ranging from pure white to pure black. Almost ready to be used as a mask for the fill layers.

To save time during inking, you can sometimes just trace the outlines and leave it to the Paint Bucket tool to do the filling. If that’s the road you took, it’s time to get these areas filled (as always, on a separate layer). It’s faster than covering with ink, but you don’t get paper texture or small “handmade” imperfections. Speed or texture, it all depends on what you’re after.

Often, a thin line will remain unfilled between you fill and the inked edge. Another go of the bucket tool will usually fill the gap. Also, if you’re artwork has inline inside letters, you might need to hide them while you create the fills to make sure the whole shape of the letter gets covered.

Last, the current artwork is black on white. If you remember the way layer masks work, this means all the inked part will actually be hidden. The opposite of what we need, so we need to invert the colors with an Invert layer.

Fixing filling and inverting

Separating the parts of the artwork on different layers

It’s now time to take each element of the design onto its own fill layer, so we can easily adjust their color later.

How many layers depends on how you want things to look in the end. One per letter or line of ornament is definitely overkill (unless you intend each to have a separate color of course). One layer per elements you think will be of the same color might lack some flexibility to experiment getting some part of a different color. A good middle ground is one layer per word and “type of ornament”.

To prepare for the separation, I’ll create a fill layer, discard its mask and replace it by Alt-clicking the mask icon. This layer will serve as a base to duplicate and copy the parts of the artwork onto. The reason for this extra step is that new fill layers come with a “reveal all” mask (start all white). If you expand your canvas, this kind of mask will… well… reveal the new area and let it be filled with color. Usually not what’s needed, hence the replacement with a “hide all” mask.

From there, it’s a game of duplicating the layer, then selecting and copying on its mask whichever part of the prepared artwork is needed.

Each element on its layer

Let’s be honest, it’s quite a tedious part. But once it’s done, the fun can begin and you can easily adjust colors for each part of your design, add texture, easily duplicate layers to create a drop shadow, and whatnot to make it the final artwork. If you want to see how it looks like, here’s a (low res) copy of the PSD file for my “Throw me the money” design.

If you try this process and have any questions or remark about it, I’ll be happy to hear about them. And more generally, if you have any questions regarding lettering (techniques, applications…), feel free to send them my way.