Tracking a Tapped Pixel Patch with a Gyroscope That Is Never Allowed to Say "Green"
I build an Android camera that tells you which way to move the phone. You tap a detail, the app follows it, and a ring turns green when that detail sits on a composition guide and the phone is ready. This post covers the parts that were harder than they looked: following a tapped patch of pixels, bridging fast turns with the gyroscope, and refusing to let any estimate produce the green state.…
The Android camera app helps users determine the direction they need to move their phone. By tapping on a specific area, the app follows the tapped patch of pixels and displays a ring when that patch aligns with a composition guide, indicating that the phone is ready. The article discusses the challenges faced in developing this feature, including tracking the patch, handling fast turns with the gyroscope, and avoiding premature green state estimation.
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