The Info Window command displays general
information about the current image, as well as information about the
pixel which is currently under the mouse pointer.
8.7.1.
Activating the Command
You can access this command from the image menubar through
View->Info window,
or by using the keyboard shortcut
Shift-Ctrl-I.
8.7.2.
Description of the “Info Window”
The Info Window displays basic information about the current image,
including its name and a thumbnail, as well as about the pixel which
is currently under the mouse pointer.
The General Tab
Figure 10.48.
The “General” tab of the
“Info Window”
Pixel dimensions: Shows the image height
and width in pixels, that is, the “physical”
size of the image.
Print size: Shows the size the image
will have when it is printed, in the current units. This
is the “logical size” of the image. It depends
upon the physical size of the image and the screen
resolution.
Resolution: Shows the image resolution
in dots per inch (dpi).
Scale ratio: Shows the zoom factor of
the current image.
Number of layers: Shows the number of
layers in the current image.
Size in memory: Shows the number of KB
the image takes up in memory. This information is also
displayed in the image window. The size is quite different
from the size of the file on disk. That is because the
displayed image is decompressed and because
GIMP keeps a copy of the image
in memory for Redo operations.
Display type: Shows the color mode of
the current image.
Visual class: Shows the way the visual
aspects of the screen are handled in the image, for example
“True Color”.
Visual depth: Shows the color depth of
the image in bits. This number can be distributed over
several components of the color model. For example, an
image in RGB mode has three components: R, G and B. With
a visual depth of 24 bits, there are 8 bits per component,
which means 256 possible color values for each of the red,
green and blue channels.
The Cursor Tab
Figure 10.49.
The “Cursor” tab of the
“Info Window”
This picture shows the types of pixel data which are
available with the pulldown menus in the Cursor tab.
This tab shows color information when you move the mouse pointer
over the image. It looks similar to the
Color Picker tool,
but it doesn't display the color.
Pixels: Coordinates of the pixel you
are pointing to. The origin (0,0) is in the upper left
corner of the image.
Units: Coordinates of the pixel you
are pointing to, in the current units (such as inches or
cm). The origin (0,0) is in the upper left corner of the
image.
There are two pulldown menus at the bottom of the Cursor tab.
Both of them contain the same choices, which makes it easier for
you to compare the color values of a particular pixel using
different color models. The choices on the pulldown menu are:
Pixel values:
This choice displays the Red,
Green, Blue and
Alpha values of the pixel, as numbers
between 0 and 255.
RGB:
This choice displays the Red,
Green, Blue and
Alpha values of the pixel, as
percentages. It also shows the hexadecimal value of the
pixel's color.
HSV:
This choice displays the Hue,
in degrees, as well as the Saturation,
Value and
Alpha of the pixel, as percentages.
CMYK:
This choice displays the Cyan,
Magenta, Yellow,
Black and Alpha
values of the pixel, as percentages.
The Comment Tab
Figure 10.50.
The “Comment” tab of the
“Info Window”
This tab shows the comments which can be stored in the image,
depending on the data format used.
Published under the terms of the GNU General Public License
