Adobe illustrator 10 ユーザーズマニュアル
|
Back
Adobe Illustrator Help
Working with Bitmap Images
|
Back
Improving performance with filters and filter effects
Some filters and filter effects can be memory intensive, especially when applied to a high-
resolution bitmap image. Use the following techniques to improve performance when
applying these commands:
resolution bitmap image. Use the following techniques to improve performance when
applying these commands:
•
Change the settings. Some commands, such as Glass, are extremely memory-intensive.
Try different settings to increase its speed.
•
If you plan to print to a grayscale printer, convert a copy of the bitmap image to
grayscale before applying filters. Note, however, that in some cases, applying a filter to a
color bitmap image and then converting it to grayscale may not have the same effect as
applying the same filter to a grayscale version of the image.
color bitmap image and then converting it to grayscale may not have the same effect as
applying the same filter to a grayscale version of the image.
Choosing a filter or filter effect
Adobe Illustrator includes a variety of filters and filter effects for applying a special look to
bitmap images. For information on using the filters, see
bitmap images. For information on using the filters, see
Many filters and effects are available only for RGB documents. To change the color
mode of a document, choose a color mode from the File > Document Color Mode
mode of a document, choose a color mode from the File > Document Color Mode
submenu.
Artistic filters and effects
Choose a filter or effect from the Artistic submenu to achieve a painterly or special effect
for a fine arts or commercial project. For example, use the Cutout filter for collages or type
treatment. These filters replicate natural or traditional media effects and include:
for a fine arts or commercial project. For example, use the Cutout filter for collages or type
treatment. These filters replicate natural or traditional media effects and include:
Colored Pencil Draws an image using colored pencils on a solid background. Important
edges are retained and given a rough crosshatch appearance; the solid background color
shows through the smoother areas.
edges are retained and given a rough crosshatch appearance; the solid background color
shows through the smoother areas.
For a parchment effect, change the background color just before applying the Colored
Pencil filter to a selected area.
Pencil filter to a selected area.
Cutout Portrays an image as though it were made from roughly cut-out pieces of colored
paper. High-contrast images appear as if in silhouette, while colored images are built up
from several layers of colored paper.
paper. High-contrast images appear as if in silhouette, while colored images are built up
from several layers of colored paper.
Dry Brush Paints the edges of the image using a dry brush technique (between oil and
watercolor). The filter simplifies an image by reducing its range of colors to areas of
common color.
watercolor). The filter simplifies an image by reducing its range of colors to areas of
common color.
Film Grain Applies an even pattern to the shadow tones and midtones of an image.
A smoother, more saturated pattern is added to the image’s lighter areas. This filter is
useful for eliminating banding in blends and visually unifying elements from various
sources.
A smoother, more saturated pattern is added to the image’s lighter areas. This filter is
useful for eliminating banding in blends and visually unifying elements from various
sources.
Fresco Paints an image in a coarse style using short, rounded, and hastily applied dabs.
Neon Glow Adds various types of glows to the objects in an image and is useful for
colorizing an image while softening its look. To select a glow color, click the glow box and
select a color from the color picker.
colorizing an image while softening its look. To select a glow color, click the glow box and
select a color from the color picker.