Working with Raster Data - Desktop GIS: Mapping the Planet with Open Source Tools - page 61

Figure 4.3: QGIS raster properties dialog box
Raster Properties
Now we'll take a brief look at some of the properties associated with
a raster. Just like vector layers, in QGIS there is a properties dialog
box that allows us to adjust the appearance of the image, as well as
get some information about it. You can access the properties dialog
box by double-clicking the layer name or right-clicking it and choosing
Properties . If this sounds familiar, you are correct. It's the same method
used for accessing the vector properties dialog box. In Figure 4.3 , you
can see the raster properties dialog box.
As you can see, the raster properties dialog box bears a bit of resem-
blance to the vector properties dialog box. They both have Symbology,
General, and Metadata tabs. Rather than look at each of these in detail,
we'll focus on a couple of things you need to know to effectively use
images in QGIS. On the Symbology tab, you have the choice to dis-
play the image as either color or grayscale. By default, the appropriate
display mode is chosen for an image when you load it.