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Diff Regression A — Colour Tint (288px)

Baseline twin A for visual-diff regression (colour change suite: colour-tint). Compare against twin B.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression A — Corner Badge (288px)

Baseline twin A for visual-diff regression (button change suite: corner-badge). Compare against twin B.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression A — Dot Noise (288px)

Baseline twin A for visual-diff regression (pixel change suite: dot-noise). Compare against twin B.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression A — Hue Shift (288px)

Baseline twin A for visual-diff regression (colour change suite: hue-shift). Compare against twin B.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B — 1Px Crop (288px)

Changed twin B for visual-diff regression (pixel: 1px-crop). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B — 1Px Shift (288px)

Changed twin B for visual-diff regression (pixel: 1px-shift). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B — Button Add (288px)

Changed twin B for visual-diff regression (button: button-add). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B — Button Label (288px)

Changed twin B for visual-diff regression (button: button-label). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B — Colour Tint (288px)

Changed twin B for visual-diff regression (colour: colour-tint). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B — Corner Badge (288px)

Changed twin B for visual-diff regression (button: corner-badge). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B — Dot Noise (288px)

Changed twin B for visual-diff regression (pixel: dot-noise). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B — Hue Shift (288px)

Changed twin B for visual-diff regression (colour: hue-shift). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Enhancement Clean Reference — Fruit (512px)

Clean fruit still life for a second enhancement ladder subject.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Clean Reference — Mug (512px)

Correctly exposed mug reference for scoring auto-enhance, exposure correction, and dehaze tools.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Input — Cool Cast Mug (512px)

Mug photo with deliberate cool cast for testing auto-enhance and colour/exposure correction against the clean reference.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Input — Haze Mug (512px)

Mug photo with deliberate haze for testing auto-enhance and colour/exposure correction against the clean reference.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Input — Hazy Fruit (512px)

Hazy fruit scene for dehaze / clarity enhancement tests.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Input — High Contrast Mug (512px)

Mug photo with deliberate high contrast for testing auto-enhance and colour/exposure correction against the clean reference.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Input — Low Contrast Mug (512px)

Mug photo with deliberate low contrast for testing auto-enhance and colour/exposure correction against the clean reference.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Input — Overexposed Mug (512px)

Mug photo with deliberate overexposed for testing auto-enhance and colour/exposure correction against the clean reference.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Input — Underexposed Fruit (512px)

Severely underexposed fruit scene for enhancement / brighten tools.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Input — Underexposed Mug (512px)

Mug photo with deliberate underexposed for testing auto-enhance and colour/exposure correction against the clean reference.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

Enhancement Input — Warm Cast Mug (512px)

Mug photo with deliberate warm cast for testing auto-enhance and colour/exposure correction against the clean reference.

File: PNG · Enhance Set · 512 × 512 px
Use case: Image enhancementImage pipeline QA· Conversion set

EXIF Metadata Present (JPEG)

A JPEG carrying rich EXIF metadata (camera make/model, software, artist, copyright, timestamp) — paired with an identical metadata-stripped copy for testing EXIF reading and privacy-scrubbing tools.

File: JPG · Color And Metadata · 512 × 512 px
Use case: EXIF & orientation testingMetadata testing· Paired fixture