Morphology in Depth

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1. Which explanation matches choose a structuring element?A. A structuring element defines which neighboring pixels participate in morphology and at what scale.B. Erosion removes foreground near boundaries; dilation expands it under the chosen element.C. Opening is erosion followed by dilation; closing reverses that order.D. Morphological reconstruction grows a marker within a limiting mask while preserving reachable connectivity.

2. Which explanation matches erosion and dilation on real masks?A. A structuring element defines which neighboring pixels participate in morphology and at what scale.B. Opening is erosion followed by dilation; closing reverses that order.C. Morphological reconstruction grows a marker within a limiting mask while preserving reachable connectivity.D. Erosion removes foreground near boundaries; dilation expands it under the chosen element.

3. Which explanation matches opening and closing change shape?A. A structuring element defines which neighboring pixels participate in morphology and at what scale.B. Erosion removes foreground near boundaries; dilation expands it under the chosen element.C. Opening is erosion followed by dilation; closing reverses that order.D. Morphological reconstruction grows a marker within a limiting mask while preserving reachable connectivity.

4. For erosion and dilation on real masks, which result or action fits this practical case: A thin bridge joins two leaves in a thresholded mask.A. Compare a small disk with a long horizontal element against the same gap.B. Try one erosion step, then inspect whether the bridge and a real narrow stem both disappear.C. Use opening for isolated foreground specks and closing for small interior gaps.D. Start inside the desired leaf and let a marker expand only through connected allowed pixels.

5. For reconstruction preserves connected structure, which result or action fits this practical case: A marker identifies the main leaf while nearby debris should stay separate.A. Start inside the desired leaf and let a marker expand only through connected allowed pixels.B. Compare a small disk with a long horizontal element against the same gap.C. Try one erosion step, then inspect whether the bridge and a real narrow stem both disappear.D. Use opening for isolated foreground specks and closing for small interior gaps.

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Morphology in Depth

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