Question

Resampling of a raster image in remote sensing:

• A. \( \text{Increases the accuracy} \)
• B. \( \text{Increases the precision} \)
• C. \( \text{Decreases data details} \)
• D. \( \text{Increases data details} \)

Hint:

Imagine resizing a digital photo – you might lose some sharpness or fine features. Resampling is similar.

Answer 1

The Correct Option is C

Resampling of a raster image is performed when changing the spatial resolution or projecting the image to a different coordinate system. This process involves calculating new pixel values for the output image based on the values of the input image. Since it's an interpolation or aggregation process, some level of generalization occurs, leading to a decrease in data details compared to the original image. Resampling does not inherently increase accuracy or precision, and while it creates a new dataset, it typically simplifies rather than increases the original data details.