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You can use an image of your own for this tutorial, or you can download the one I used (shown at left) by downloading this 4 MB ZIP archive.
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 Open Cathedral Sketch.jpg and press Command/Ctrl-J to
copy the Background to a new
layer. Desaturate this layer by
choosing Image > Adjustments
> Desaturate (Shift-Command/
Ctrl-U). Press Command/Ctrl-J
again to copy the desaturated
layer. Press Command/Ctrl-I to
Invert it, and change the layer
blending mode to Color Dodge.
The image should turn completely
white.
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Choose Filter > Blur > Gaussian Blur, and set Radius to the
maximum of 250 pixels for a smudged graphite appearance.
There may be areas where you want more or less detail that
can be controlled by painting on the blurred layer. Select the
brush tool and choose the Soft Round 300-pixel brush in the
Brushes palette. In the Options Bar, click the Airbrush icon and
lower Opacity to 30%. Change the Foreground Color to black
by pressing X, and paint lightly over areas such as the domes
and towers of the cathedrals and the sun-bleached walls to
bring out more detail. Use the Left and Right Bracket keys to
adjust brush size and the Numeric keys to change Opacity. To
lessen or eliminate detail, change the Foreground Color to
white, and paint with the same settings or adjust as needed.
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Once the rendering is to your liking, click the Create a
new layer icon at the bottom of the Layers palette. With
this layer active, press Option/Alt while selecting Merge
Visible from the Layers palette menu to create a layer composite
of the base graphite rendering. Drag the blurred layer
to the Trash icon. Now that the base graphite rendering
layer is in place, you’ll want to create another layer that has
sketch lines to impose over this. Turn off the visibility of
the base graphite rendering layer. Activate the desaturated
Background copy layer, and press Command/Ctrl-J to copy
to a new layer. Invert it (Command/Ctrl-I), and change the
layer mode to Color Dodge. Apply the Gaussian Blur filter
set to a Radius of 5 pixels. Brush over the image to control
the amount of detail using the brush settings from Step 2.
Create a new layer, and while pressing Option/Alt choose
Merge Visible from the Layers palette menu to create
another composite layer, and name it Graphite Rendering
2. Trash the blurred layer, and turn on the visibility of the
base graphite rendering.
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Move the Graphite Rendering 2 layer to the top. Press Command/
Ctrl-L to open Levels and move the black slider to the right until
you have more prominent black sketch lines, then lower the layer’s
Opacity to 60%. To create the effect of aged textured paper, click the
Create new fill or adjustment layer icon and choose Solid Color. In
the Color Picker, enter 250, 250, and 215 as the RGB values, click OK,
and lower the layer’s Fill to 15% for a slight yellow cast. Add a Pattern
layer, click the pattern swatch to choose Sparse Basic Noise, set Scale
to 50%, and click OK. Change the Pattern layer’s Opacity to 12%.
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Create a new layer, open the History palette, and make sure that
the source image set for the history brush is the starting color image.
(A brush with an arrow icon should be in the box to the left of the
Cathedral Sketch image thumbnail.) Choose the history brush in
the toolbox and use the same brush settings as before, but change
the brush’s Opacity to 50% and turn off the Airbrush. Gently sweep
across the image, being careful to not cross over the same areas too
much, and you will see colors from the original image come through.
When finished, set the layer’s Opacity to 65% to soften the colors.
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The final image is shown at left (click to enlarge).
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Shan Canfield is an Adobe Certified Expert, instructor,
designer, photographer, digital
artist and retoucher.
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