Filters
in the Sketch submenu add texture to images, often for a 3D effect.
The filters also are useful for creating a fine-arts or hand-drawn
look. Many of the Sketch filters use the foreground and background
color as they redraw the image. All the Sketch filters can be applied
through the Filter Gallery.
- Bas Relief
-
Transforms
an image so that it appears carved in low relief and lit to accent
the surface variations. Dark areas of the image take on the foreground color,
and light colors use the background color.
- Chalk & Charcoal
-
Redraws
highlights and midtones with a solid midtone gray background drawn
in coarse chalk. Shadow areas are replaced with black diagonal charcoal
lines. The charcoal is drawn in the foreground color; the chalk, in
the background color.
- Charcoal
-
Creates a
posterized, smudged effect. Major edges are boldly drawn, and midtones
are sketched using a diagonal stroke. Charcoal is the foreground color,
and the background is the color of the paper.
- Chrome
-
Renders the
image as if it had a polished chrome surface. Highlights are high
points, and shadows are low points in the reflecting surface. After
applying the filter, use the Levels dialog box to add more contrast
to the image.
- Conté Crayon
-
Replicates
the texture of dense dark and pure white Conté crayons on an image.
The Conté Crayon filter uses the foreground color for dark areas
and the background color for light areas. For a truer effect, change
the foreground color to one of the common Conté Crayon colors (black,
sepia, or sanguine) before applying the filter. For a muted effect,
change the background color to white, add some of the foreground
color to the white background, and then apply the filter.
- Graphic Pen
-
Uses fine,
linear ink strokes to capture the details in the original image.
The effect is especially striking with scanned images. The filter
replaces color in the original image, using the foreground color
for ink and the background color for paper.
- Halftone Pattern
-
Simulates
the effect of a halftone screen while maintaining the continuous
range of tones.
- Note Paper
-
Creates
an image that appears to be constructed of handmade paper. This
filter simplifies images and combines the effects of the Stylize > Emboss
and Texture > Grain filters. Dark areas of the image
appear as holes in the top layer of paper, revealing the background
color.
- Photocopy
-
Simulates
the effect of photocopying an image. Large dark areas tend to be
copied only around their edges, and midtones fall away to either
solid black or solid white.
- Plaster
-
Molds an image
from 3D plaster, and then colorizes the result using the foreground
and background color. Dark areas are raised, and light areas are recessed.
- Reticulation
-
Simulates
the controlled shrinking and distortion of film emulsion to create
an image that appears clumped in the shadows and lightly grained
in the highlights.
- Stamp
-
Simplifies the
image so that it appears to be created with a rubber or wood stamp.
This filter is best used with black-and-white images.
- Torn Edges
-
Reconstructs
the image so that it appears composed of ragged, torn pieces of
paper, and then colorizes the image using the foreground and background
colors. This filter is particularly useful for text or high-contrast objects.
- Water Paper
-
Uses blotchy
daubs that appear painted onto fibrous, damp paper, causing the
colors to flow and blend.