Segmentation Methods

Five questions. Choose one answer for each, then submit to see your score and explanations.

The practice target is 80%. You can retry as often as you like, and every lesson stays accessible.

You can practice as a guest. Sign in before starting an attempt to save your scores.

1. Which explanation matches global thresholds and their limits?A. Adaptive thresholding computes a local rule from neighborhoods to handle uneven illumination.B. Global thresholding applies one intensity rule across the image.C. Region growing adds neighboring pixels when they meet a similarity criterion.D. Watershed-style separation uses markers and a topographic image to assign touching regions.

2. Which explanation matches adaptive thresholds under uneven light?A. Adaptive thresholding computes a local rule from neighborhoods to handle uneven illumination.B. Global thresholding applies one intensity rule across the image.C. Region growing adds neighboring pixels when they meet a similarity criterion.D. Watershed-style separation uses markers and a topographic image to assign touching regions.

3. Which explanation matches grow a region from a seed?A. Global thresholding applies one intensity rule across the image.B. Adaptive thresholding computes a local rule from neighborhoods to handle uneven illumination.C. Watershed-style separation uses markers and a topographic image to assign touching regions.D. Region growing adds neighboring pixels when they meet a similarity criterion.

4. For adaptive thresholds under uneven light, which result or action fits this practical case: The left side of a carton is much darker than the right.A. Plot pixel values from both lit and shaded areas before choosing a cutoff.B. Place the seed inside the dark printed label, then inspect where growth stops.C. Compare a window over the dark side with a window over the bright side.D. Put one marker inside each sticker and inspect the dividing boundary.

5. For separate touching regions with watersheds, which result or action fits this practical case: Two touching stickers appear as one connected patch.A. Plot pixel values from both lit and shaded areas before choosing a cutoff.B. Put one marker inside each sticker and inspect the dividing boundary.C. Compare a window over the dark side with a window over the bright side.D. Place the seed inside the dark printed label, then inspect where growth stops.

Review this module from its first lesson →

Segmentation Methods

Your result