How do I measure NDVI and reflectance of custom regions?

A custom region drawn in the Image Window may be used to measure the reflectances and NDVIs of specific areas within a high resolution image. Transfer control to the Image Window, hold down the control key, then left-click and drag to draw a region.

Use the number keys 5-9 on the keyboard while active in the Image Window to view images in color (key 5), or in the 550nm channel (key 6), 650nm (key 7), 710nm (key 8), or 850nm (key 9).

Figures 1 through 5 below show the same custom region and its reflectance statistics, in the false color view, and each of the four bands.

Figure 1: Reflectance and NDVI measurements for a custom region, color image

Figure 2: Reflectance and NDVI measurements for a custom region, 550nm image

Figure 3: Reflectance and NDVI measurements for a custom region, 650nm image

Figure 4: Reflectance and NDVI measurements for a custom region, 710nm image

Figure 5: Reflectance and NDVI measurements for a custom region, 850nm image