If the lowest Digital Number (DN) value in an image of 10-bit radiometric resolution is 0, then the maximum DN value of that image is ________
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Correct Answer: 1023
Solution and Explanation
Step 1: Understanding the 10-bit radiometric resolution.
In a 10-bit image, the number of possible Digital Numbers (DNs) ranges from 0 to \(2^{10} - 1\). This is because a 10-bit resolution allows for 1024 distinct values, which range from 0 to 1023.
Step 2: Determining the maximum DN value.
The maximum DN value is equal to \(2^{10} - 1\), which is: \[ 2^{10} - 1 = 1024 - 1 = 1023 \] Therefore, the maximum DN value of the image is \(1023\).
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