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How It Works

How Cullit Actually Works

You shoot 800 frames, only a fraction are true keepers, and manual culling steals your night. Cullit handles the first pass so you spend less time clicking and more time delivering.

What We Analyze

Sharpness

Motion blur, focus confidence, and shake patterns.

Exposure

Highlight clipping, shadow crush, histogram balance.

Composition

Framing strength, horizon, spacing, visual structure.

Faces & Timing

Eyes, expressions, subject presence, and moment quality.

Two-Pass Analysis

Every photo runs through two independent passes. The final star rating blends both scores weighted by shoot type.

Pass 1 — Technical

OpenCV

Laplacian blur detection (with face-ROI weighting), histogram exposure analysis, face detection, composition evaluation, and burst duplicate removal. Fast, deterministic, and reliable for clear technical quality signals.

Pass 2 — Moment

Claude Vision

Claude Vision evaluates emotional timing, subject relevance, and contextual quality — what makes a frame feel alive, not just technically correct. This is what keeps the eyes-half-open candid your clients will love while a purely technical tool would have rejected it.

People-focused profiles (wedding, family, events) weight the Moment pass higher. Technical profiles (architecture, product) weight it lower.

Star System

★★★★★ Portfolio Worthy

Hero shots: sharp, strong composition, exact moment.

Website portfolio, hero carousel, social highlights.

Typical rate: 2-5% of a shoot.

★★★★ Solid Selects

Client-ready storytelling frames.

Delivery gallery, album sets, print choices.

Typical rate: 10-20% of a shoot.

★★★ Backup Options

Technically usable but less compelling.

Archive backups and alternates.

Typical rate: 20-30% of a shoot.

★★ Probably Cull

Minor misses: soft focus, weak expression, timing miss.

Keep only if no stronger alternative exists.

Typical rate: variable by shoot type.

★ Definitely Cull

Clear misses: blur, eyes closed, bad exposure, weak duplicate.

Reject with confidence.

Typical rate: depends on burst style and lighting conditions.

Visual Star Guide →

What We Don't Do

  • We do not edit, retouch, or color-grade your photos.
  • We do not make your final keep/reject decision for you.
  • We do not promise perfect accuracy on every edge case.
  • We do not keep your source photos after processing workflow completion.

Ready To Test It?

Upload any shoot for free. Pay $4.99 when you export.