Memory and device evidence

Bitmap Reuse for Local Image AI on Android

Bound decoded images and working buffers without retaining stale user content.

Editorial review pending · Not indexed · Fact IDs: MEMORY-01, COVE-OCR-01

Direct answer

Android bitmap reuse local AI requires containing decoded images and working buffers without holding on to stale user content. This focus centers on scoping rather than inference: the concern is the boundary between images that are actively in use and any content that could persist beyond its necessary lifetime, ensuring retention does not extend past the point of functional need.

Evidence to collect

The claim becomes reviewable only when the following evidence is attached to the same artifact and test run:

  • Source and working dimensions
  • Buffer ownership
  • Repeated-capture memory trace

A device badge must come from an exact device, OS, artifact, runtime, backend, and workload record, not parameter-count intuition.

Implementation workflow

Evidence items to record and compare include the source and working dimensions of images, the ownership status of buffers involved in processing, and a memory trace taken across repeated captures. These observations should be captured consistently so that patterns and changes can be examined side by side rather than assumed.

  1. Record the exact artifact and format.
  2. Measure the app before model load.
  3. Measure after model initialization.
  4. Run a representative product task.
  5. Repeat the fixed workload without restarting.
  6. Store failures, fallback, and cleanup behavior.

Failure patterns to prevent

  • Keeping every preview
  • Reusing a bitmap still owned by UI

Pitfalls to avoid include keeping every preview generated during operation and reusing a bitmap that is still owned by the UI. Wording about any release of previously held material should be limited to what the recorded evidence shows, rather than extended to conclusions about behavior not directly documented.

Minimum reproducibility record

LayerRecord
DeviceManufacturer, model, chipset, RAM class, operating-system build
SoftwareApplication version and git commit
ModelFamily, variant, revision, format, file length, hash, quantization
RuntimeName, revision, requested backend, observed backend evidence
WorkloadFixture revision, input hash, prompt hash, output policy
OutcomeCompleted, failed, cancelled, fallback, and privacy-safe diagnostics

Release checklist

  • ☐ The primary query is answered without an unsupported number.
  • ☐ Every artifact and runtime is pinned.
  • ☐ The representative task and failure policy are explicit.
  • ☐ Lifecycle, cancellation, cleanup, and fallback are tested.
  • ☐ User-content and network boundaries are documented.
  • ☐ Result wording applies only to the recorded configuration.
  • ☐ The page links to raw method or evidence when results are added.

Sources and related evidence

This page relies on the Cove fact ledger and benchmark policy. Results remain blocked until raw records exist.

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