Self-Test Quiz: Remote Sensing with Multispectral Images

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1. A camera with a red filter attached to the lens was loaded with black and white film and a photograph of a red rose was taken. What shade of black to white (gray tones) might the image of the rose be?

2. In the same photograph as the one above, what shade of black to white (gray tones) might be the color of the green leaves?

3. The color monitor of a computer and a color television can display three different colors. All the other colors are a combination of these three. Two of the colors are red and green. What is the third color?

4. During the process of learning the Multispec software, there were 3 separate channels that each Thematic Mapper (TM) Band could be loaded into. Which channel is the RED Channel (not the same as the Thematic Mapper (TM) Bands) ?

5. When loading the different Thematic Mapper (TM) Bands into Multispect, which sequence of Thematic Mapper (TM) Band is the correct order to show the image in a manner which is natural to the human eye (True Colors)?

6. Landsat records the electromagnetic emmissions from the earth in 7 distinct wavelengths. Which Thematic Mapper (TM) Band is the Thermal Band?

7. What is the spatial resolution, in meters, of this Thermal Band?

8. What is the spatial resolution, in meters, of the other Thematic Mapper (TM) Bands?

9. When studying Morro Bay in the 7 different (TM) Bands, the histograms of each one has a unique characteristic. They have peaks at various mid Range Digital Numbers (DN) and a peak at a very low DN. This low peak DN is characteristic of what feature?

10. In the gray scale image of Morro Bay taken with the Thematic Mapper (TM) sensor tuned to Band 1, the lighter gray tones represent colors which are___________________.

11. Actively growing vegetation will appear with dark tones in TM Bands 1, 2, and 3. However vegetation will be darker in TM Bands 1 and 3 because the chlorophyll of actively growing vegetation absorbs the ____________________________wavelengths.

12. Conversely, chlorophyll reflects mostly the color_________ in the visible spectrum.

13. If you were to look at an image in the Thematic Mapper (TM) Band 4, which generalized material would appear brighter?

14. When looking at an image in the Thematic Mapper (TM) Band 5,which generalized material would appear brighter?

15. A client who wants a "false color" image of his land. The vegetation is displayed in red. Which TM Bands should I use, and in to which color channel should they be loaded? The answers are provided in the sequence of Red (R), Green(G), and Blue (B).

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1. A camera with a red filter attached to the lens was loaded with black and white film and a photograph of a red rose was taken. What shade of black to white (gray tones) might the image of the rose be?


2. In the same photograph as the one above, what shade of black to white (gray tones) might be the color of the green leaves?


3. The color monitor of a computer and a color television can display three different colors. All the other colors are a combination of these three. Two of the colors are red and green. What is the third color?


4. During the process of learning the Multispec software, there were 3 separate channels that each Thematic Mapper (TM) Band could be loaded into. Which channel is the RED Channel (not the same as the Thematic Mapper (TM) Bands) ?


5. When loading the different Thematic Mapper (TM) Bands into Multispect, which sequence of Thematic Mapper (TM) Band is the correct order to show the image in a manner which is natural to the human eye (True Colors)?


6. Landsat records the electromagnetic emmissions from the earth in 7 distinct wavelengths. Which Thematic Mapper (TM) Band is the Thermal Band?


7. What is the spatial resolution, in meters, of this Thermal Band?


8. What is the spatial resolution, in meters, of the other Thematic Mapper (TM) Bands?


9. When studying Morro Bay in the 7 different (TM) Bands, the histograms of each one has a unique characteristic. They have peaks at various mid Range Digital Numbers (DN) and a peak at a very low DN. This low peak DN is characteristic of what feature?


10. In the gray scale image of Morro Bay taken with the Thematic Mapper (TM) sensor tuned to Band 1, the lighter gray tones represent colors which are___________________.


11. Actively growing vegetation will appear with dark tones in TM Bands 1, 2, and 3. However vegetation will be darker in TM Bands 1 and 3 because the chlorophyll of actively growing vegetation absorbs the ____________________________wavelengths.


12. Conversely, chlorophyll reflects mostly the color_________ in the visible spectrum.


13. If you were to look at an image in the Thematic Mapper (TM) Band 4, which generalized material would appear brighter?


14. When looking at an image in the Thematic Mapper (TM) Band 5,which generalized material would appear brighter?


15. A client who wants a "false color" image of his land. The vegetation is displayed in red. Which TM Bands should I use, and in to which color channel should they be loaded? The answers are provided in the sequence of Red (R), Green(G), and Blue (B).