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echavez lab 6

# echavez lab 6 - GEOGRAPHY 330 INTRODUCTION TO REMOTE...

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GEOGRAPHY 330 INTRODUCTION TO REMOTE SENSING Fall 2006 LAB 6 IMAGE EXPLORATION QUESTIONS 38 / (40 points) Name Eric Chavez Lab Section 3 This template is provided for the creation of your lab report. Answer each question below and distinguish your answers from these questions by using italics and bold . All figures in your report must be captioned properly and should not be larger than 4 inches. Only lab reports with this format will be accepted. Section 3 1. What are the Minimum and Maximum pixel values of the band 4 in this image? - Minimum 12 - Maximum 228 2. What is the Projection information for all the bands? -Projection Type: UTM -Spheroid Name: Clarke 1866 -Datum Name: NAD27 -UTM Zone: 12 -NORTH or SOUTH: North 3. Why do all the layers have the same Projection information? - You need the same projection to be able to give an accurate representation in all the bands. 4. Get a screen capture of the histogram of band 4 showing the vertical lines of the min, max, and mean values.

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- 5. What does the overall shape of all bands’ histograms have in common? - Every layer is bimodal. 6. What does the first large peak of low values in all histograms represent in the image? - The first large peak shows the darker area on the image. 7. What does the second large peak of high values in all histograms represent in the image? - It shows the lighter area on the image. 8. Histograms of bands 1 and 2 are mostly concentrated in the middle values rage. What is the atmospheric effect causing this value distribution? Why? - The atmospheric effect causing this value distribution is atmospheric scattering.
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