System Design · Apple · Hard
Imagine you own a mobile image-filter feature that has to run entirely on the device. The preview must appear in under 30 ms on mainstream handsets, memory use must stay low, and the feature should have minimal effect on battery life. Describe how you would tune the filter pipeline while keeping visual quality at an acceptable level. Your explanation should cover algorithm choices, numeric precision, CPU/GPU/accelerator trade-offs, memory layout, tiling or streaming, thermal…
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