5.17.2.B. Contrast Enhancement

Try these first

1. 1.

   Define contrast in the context of image processing.

   Hint

   Think about how different colors or brightness can affect visibility.

2. 2.

   What is linear contrast enhancement?

   Hint

   It helps to improve the visibility of features.

3. 3.

   What does contrast enhancement primarily do to an image?

   • Increases brightness
   • Improves feature visibility
   • Changes image colors

   Hint

   Think about the goal of making features clearer.

4. 4.

   True or False: Linear contrast enhancement increases the amount of information in an image.

   • True
   • False

   Hint

   Consider whether enhancement changes the data itself.

5. 5.

   Given a low contrast satellite image with pixel values clustered between 50 and 100, design a plan for when and how to apply contrast enhancement to improve image clarity.

   Hint

   Review the steps of histogram analysis and enhancement techniques.

6. 6.

   Evaluate the impact of linear contrast enhancement on an image that contains significant noise. What considerations must be taken into account?

   Hint

   Think about how the proposed changes can affect clarity positively and negatively.