Refer to Fig. 6.27 in answering the following:FIGURE 6.27 (a)–(d) Images in bands 1–4 in F...

Refer to Fig. 6.27 in answering the following:

FIGURE 6.27 (a)–(d) Images in bands 1–4 in Fig. 1.10 (see Table 1.1). (e) Color composite image obtained by treating (a), (b), and (c) as the red, green, blue components of an RGB image. (f) Image obtained in the same manner, but using in the red channel the near-infrared image in (d). (Original multispectral images courtesy of NASA.)

(a) Why does the image in Fig. 6.27(f) exhibit predominantly red tones?

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(b) Suggest an automated procedure for coding the water in Fig. 6.27 in a bright-blue color.

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(c) Suggest an automated procedure for coding the predominantly man-made components in a bright yellow color. [Hint: Work with Fig. 6.27(f).]