Digital Numbers Progress Check

This is a progress report to help me assess how well you are doing. This report will be sent to the email address you designate below.

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1. What information in the Info Box keeps changing? (Check all that apply)

X

Y

Value

Count

Area

Mean

2. As you move the cursor along the same horizontal row (X values), which numbers change? You may need to magnify the images so that you are on the same row. (Check all that apply)

X

Y

Value

Count

Area

Mean

3. If the cursor is moved up or down the same column (Y values), which numbers change? (Check all that apply)

X

Y

Value

Count

Area

Mean

4. If the cursor is moved left or right of the horizontal row, does the Y value remain the same?

Yes
No

5. What is the x, y value of the pixel in the lowest left hand region of the image?

6. How many rows does this image contain?

7. How many columns are there in this same image?

8. Based upon the total number of rows and columns how many pixels are in this image? This is the same as if one were to determine the total number of seats at a boxing match.

9. What is the value (DN) of the pixel located at x= 130 and y= 114?

10. What is the value (DN) of the pixel located at x= 0 and y = 0?

11. Find a very bright (light color) pixel and give me its x,y coordinate and its DN value.

(X,Y) (DN Value)

12. Find a very dark color pixel, give me its x,y coordinate and its DN value.

(X,Y) (DN Value)