# Dominant Imaging Specification in Each Scenario ## (a) FM Radio Station with Poor Reception **Dominant Challenge:** **Signal-to-Noise Ratio (SNR)** - **Reason:** At long distances, the signal from the radio station is weak compared to the background noise. Improving SNR (increasing signal or reducing noise) would most improve reception. - **Contrast** and **resolution** are not relevant in this auditory context. --- ## (b) Foggy Mirror in the Bathroom **Dominant Challenge:** **Resolution** - **Reason:** Fog scatters light, which blurs the image and reduces the ability to distinguish fine details (spatial resolution). - **Contrast** may be slightly affected, but loss of resolution (sharpness/detail) is the main issue. - **SNR** is usually not critical here. --- ## (c) Finding Waldo in a Waldo Book **Dominant Challenge:** **Resolution** - **Reason:** The task requires distinguishing small, fine details in a crowded, detailed illustration. Higher resolution allows you to see and identify Waldo among many similar figures. - **Contrast** is typically adequate in printed books. - **SNR** is not relevant for normal visual perception in this context. --- ## (d) Seeing Friend Inside on a Sunny Day (Glare on Window) **Dominant Challenge:** **Contrast** - **Reason:** Bright sunlight reflecting off the window creates a high level of background light (glare), reducing the contrast between your friend (inside) and the window’s reflected image (outside). This makes it hard to see your friend even if the resolution is sufficient. - **SNR** could play a minor role (if the reflected light is considered "noise"), but **contrast** is the primary limiting factor. - **Resolution** is not the main issue unless the window is extremely dirty or fogged. --- # Summary Table | Scenario | Dominant Challenge | |-----------------------------------|---------------------| | (a) FM Radio (100+ miles away) | SNR | | (b) Foggy Mirror | Resolution | | (c) Finding Waldo | Resolution | | (d) Looking Through Glare Window | Contrast |