Question

Mixel refers to:

• A. \(\text{Combination of two or many pixels} \)
• B. \(\text{Combined value for the same pixel at different bands} \)
• C. \(\text{Combined reflection values from different land cover features} \)
• D. \(\text{Combined reflection atmospheric effect with land cover features} \)

Hint:

Mixels (Mixed Pixels) are common in remote sensing images with coarse resolution, where a single pixel contains spectral information from multiple land covers.

Answer 1

The Correct Option is C

Step 1: Understanding the concept of a mixel. A mixel (mixed pixel) is a pixel in an image that contains contributions from multiple land cover types instead of representing a single distinct class.
Step 2: Explanation of mixed pixels. - In low-resolution satellite images, a pixel may cover multiple land cover features, causing a mix of spectral signatures. - This mixing leads to spectral unmixing techniques being used to separate components.
Step 3: Selecting the correct option. Since mixels contain combined reflection values from different land cover features, the correct answer is c. Combined reflection values from different land cover features.