Graphics Programs Reference
In-Depth Information
Review questions
1
.
What does
resolution
mean?
2
.
What does the Crop tool do?
3
.
How can you adjust the tone and color of an image in Photoshop?
4
.
What tools can you use to remove blemishes in an image?
5
.
How can you remove digital artifacts such as colored pixels from an im-
age?
Review answers
1
.
The term
resolution
refers to the number of pixels that describe an image
and establish its detail.
Image resolution
and
monitor resolution
are meas-
ured in pixels per inch (ppi).
Printer,
or
output, resolution
is measured in
ink dots per inch (dpi).
2
.
You can use the Crop tool to trim, scale, or straighten an image.
3
.
To adjust the tone and color of an image in Photoshop, first use the White
Point tool in a Curves adjustment layer. Then refine the tone using a
Levels adjustment layer.
4
.
The Healing Brush, Spot Healing Brush, Patch tool, and Clone Stamp
tools let you replace unwanted portions of an image with other areas of
the image. The Clone Stamp tool copies the source area exactly; the Heal-
ing Brush and Spot Healing Brush tools blend the area with the surround-
ing pixels. The Spot Healing Brush tool doesn't require a source area at
all; it “heals” areas to match the surrounding pixels. In Content-Aware
