Drawing a continuous raster dataset
The Stretched renderer displays continuous raster cell values across a gradual ramp of colors. This renderer is good for displaying an orthophoto or satellite image.
Having current statistics improves the renderer's ability to display the raster accurately.
- In the table of contents, right-click the raster layer that you want to display across a color ramp and click Properties.
- Click the Symbology tab.
- Click Stretched.
- Optionally, if your raster dataset has multiple bands, choose the band you want to stretch.
- Optionally, click the Label text boxes and type labels for the table of contents.
- Click the Color Ramp drop-down arrow and click a color ramp.
- Optionally, choose a color or No Color to display any NoData values.
- Optionally, click the Stretch drop-down arrow and click the type of Stretch, if any, you want to perform.
- Optionally, check Apply Gamma Stretch and type gamma values in each text box for the red, green, and blue values.
Optionally, scroll down and click Statistics to change the statistics.
You can use the Statistics portion of the Symbology tab to examine and modify how your data is displayed.
- Click OK.
You can quickly change the colors applied to a raster by clicking the color in the table of contents.
Use the Image Analysis window or Effects toolbar to interactively adjust a raster layer's transparency over other layers on your map.