WithoutBG Focus Model Results#

This is a stress test of the Focus model (v0.2.0). No cherry-picking: you will see both successful results and cases where the model fails. Photos are deliberately diverse. Low resolution images, film camera shots, DSLR captures, and Midjourney-generated human portraits... This is to evaluate real-world performance across varying input quality.

People#

Close-up street portrait with windblown curly hair and dramatic backlight, challenging fine hair edges

AI-generated with midjourney

Original image: Windblown Curly Portrait — Original Image

Background removed: Windblown Curly Portrait — Without Background

Alpha matte prediction: Windblown Curly Portrait — Alpha Matte (Model Prediction)

Back view of a person with windblown curly hair and a backpack near a chain-link fence, city skyline softly blurred

AI-generated with midjourney

Original image: Windblown Curly Hair with Backpack — Original Image

Background removed: Windblown Curly Hair with Backpack — Without Background

Alpha matte prediction: Windblown Curly Hair with Backpack — Alpha Matte (Model Prediction)

Bearded man with curly hair in an office setting, fine hair edges and shallow depth of field

AI-generated with midjourney

Original image: Bearded Man Portrait — Original Image

Background removed: Bearded Man Portrait — Without Background

Alpha matte prediction: Bearded Man Portrait — Alpha Matte (Model Prediction)

Smiling woman at sunset with confetti and rim-lit curls, challenging fine hair edges

AI-generated with midjourney

Original image: Confetti Sunset Portrait — Original Image

Background removed: Confetti Sunset Portrait — Without Background

Alpha matte prediction: Confetti Sunset Portrait — Alpha Matte (Model Prediction)

Smiling man in a yellow jacket by the sea at sunset with a lighthouse in the background

AI-generated with midjourney

Original image: Smiling Man at Seaside Sunset — Original Image

Background removed: Smiling Man at Seaside Sunset — Without Background

Alpha matte prediction: Smiling Man at Seaside Sunset — Alpha Matte (Model Prediction)

Young woman smiling at the camera by the sea at golden hour, with freckles and a floral dress

AI-generated with midjourney

Original image: Smiling Woman by the Sea — Original Image

Background removed: Smiling Woman by the Sea — Without Background

Alpha matte prediction: Smiling Woman by the Sea — Alpha Matte (Model Prediction)

Bearded man close-up on a city street with buildings in the background

AI-generated with midjourney

Original image: Street Portrait — Original Image

Background removed: Street Portrait — Without Background

Alpha matte prediction: Street Portrait — Alpha Matte (Model Prediction)

Young woman with wavy dark hair standing in a field at sunset, softly rim-lit and wearing an earthy jacket

AI-generated with midjourney

Original image: Sunset Field Portrait — Original Image

Background removed: Sunset Field Portrait — Without Background

Alpha matte prediction: Sunset Field Portrait — Alpha Matte (Model Prediction)

Side profile of a person blowing dandelion seeds in warm backlight with drifting fluff

AI-generated with midjourney

Original image: Blowing Dandelion Seeds — Original Image

Background removed: Blowing Dandelion Seeds — Without Background

Alpha matte prediction: Blowing Dandelion Seeds — Alpha Matte (Model Prediction)

Bearded man with messy hair in a warm indoor setting at night, with window bokeh in the background

AI-generated with midjourney

Original image: Messy-Haired Bearded Portrait — Original Image

Background removed: Messy-Haired Bearded Portrait — Without Background

Alpha matte prediction: Messy-Haired Bearded Portrait — Alpha Matte (Model Prediction)

Middle-aged woman with glasses and a patterned scarf looking at the camera on a city street, with a blurred bus in the background

AI-generated with midjourney

Original image: Woman Street Portrait with Glasses — Original Image

Background removed: Woman Street Portrait with Glasses — Without Background

Alpha matte prediction: Woman Street Portrait with Glasses — Alpha Matte (Model Prediction)

Back view of a person with a messy bun against blurred city buildings, including an orange facade

AI-generated with midjourney

Original image: Messy Bun in Cityscape — Original Image

Background removed: Messy Bun in Cityscape — Without Background

Alpha matte prediction: Messy Bun in Cityscape — Alpha Matte (Model Prediction)

Objects with Details#

Small spoked bicycle wheel with knobby tire on a wooden tabletop, thin spokes and circular edge

Shot with Smartphone (Samsung Galaxy S21)

Original image: Spoked Bike Wheel — Original Image

Background removed: Spoked Bike Wheel — Without Background

Alpha matte prediction: Spoked Bike Wheel — Alpha Matte (Model Prediction)

Two gravel bikes with drop bars on grass in a park, overlapping wheels and thin spokes

Shot with Smartphone (Samsung Galaxy S8)

Original image: Two Gravel Bikes in Park — Original Image

Background removed: Two Gravel Bikes in Park — Without Background

Alpha matte prediction: Two Gravel Bikes in Park — Alpha Matte (Model Prediction)

Dried purple flowers in a painted clay vase on a wooden table, thin stems and fine details

Shot with Smartphone (Samsung Galaxy S8)

Original image: Dried Flowers in Clay Vase — Original Image

Background removed: Dried Flowers in Clay Vase — Without Background

Alpha matte prediction: Dried Flowers in Clay Vase — Alpha Matte (Model Prediction)

Mixed autumn bouquet in a glass vase near a window, thin stems and overlapping leaves

Shot with Smartphone (Samsung Galaxy S21)

Original image: Autumn Bouquet in Vase — Original Image

Background removed: Autumn Bouquet in Vase — Without Background

Alpha matte prediction: Autumn Bouquet in Vase — Alpha Matte (Model Prediction)

Side-view cargo e-bike parked on a paved path beside tram tracks in a park under a cloudy sky

Shot with Smartphone (Samsung Galaxy S21)

Original image: Cargo E-Bike by Tracks — Original Image

Background removed: Cargo E-Bike by Tracks — Without Background

Alpha matte prediction: Cargo E-Bike by Tracks — Alpha Matte (Model Prediction)

Bicycle handlebar with a small vase of yellow flowers by the sea on a sandy beach

Shot with 35mm Film Camera (Pentax)

Original image: Bike Handlebar at Beach — Original Image

Background removed: Bike Handlebar at Beach — Without Background

Alpha matte prediction: Bike Handlebar at Beach — Alpha Matte (Model Prediction)

White chess pieces arranged on a board in a club setting with players blurred in the background

Shot with Nikon D90 (Nikon D90 with Nikkor 50mm f/1.8)

Original image: White Chess Pieces at Tournament — Original Image

Background removed: White Chess Pieces at Tournament — Without Background

Alpha matte prediction: White Chess Pieces at Tournament — Alpha Matte (Model Prediction)

Whiteboard covered with handwritten trigonometry formulas, examples, and unit circle diagrams

Shot with HP 635 Digital Camera (HP 635 Digital Camera - 2.1MP)

Original image: Trigonometry Notes on Whiteboard — Original Image

Background removed: Trigonometry Notes on Whiteboard — Without Background

Alpha matte prediction: Trigonometry Notes on Whiteboard — Alpha Matte (Model Prediction)

Motion#

Woman riding a bicycle with strong motion blur against a golden field at sunset

Shot with 35mm Film Camera (Pentax)

Original image: Cyclist in Motion — Original Image

Background removed: Cyclist in Motion — Without Background

Alpha matte prediction: Cyclist in Motion — Alpha Matte (Model Prediction)

Elderly man running with motion blur, flaring coat and blurred background

AI-generated with midjourney

Original image: Elderly Man Running — Original Image

Background removed: Elderly Man Running — Without Background

Alpha matte prediction: Elderly Man Running — Alpha Matte (Model Prediction)

Bright campfire flames rising from a ring of rocks against a dark night background

Shot with Canon 500D (Canon 500D with 18-55mm f/3.5-5.6 IS lens)

Original image: Campfire Flames at Night — Original Image

Background removed: Campfire Flames at Night — Without Background

Alpha matte prediction: Campfire Flames at Night — Alpha Matte (Model Prediction)

Sprinter in red tracksuit with strong motion blur and semi-transparent trails

AI-generated with midjourney

Original image: Sprinter Motion Blur — Original Image

Background removed: Sprinter Motion Blur — Without Background

Alpha matte prediction: Sprinter Motion Blur — Alpha Matte (Model Prediction)

Dancer in a colorful windbreaker and cap striking a dynamic pose on a gray studio background

AI-generated with midjourney

Original image: Street Dancer in Studio — Original Image

Background removed: Street Dancer in Studio — Without Background

Alpha matte prediction: Street Dancer in Studio — Alpha Matte (Model Prediction)

Plants#

Small balcony plant with bokeh background and thin leaves and stems

Shot with Canon 5D (Canon 5D Mark II with Takumar 50mm f/1.4)

Original image: Balcony Plant Bokeh — Original Image

Background removed: Balcony Plant Bokeh — Without Background

Alpha matte prediction: Balcony Plant Bokeh — Alpha Matte (Model Prediction)

Trailing hanging houseplant silhouetted against a bright window, fine leaves and chain details

Shot with Smartphone (Samsung Galaxy S21)

Original image: Hanging Plant in Window — Original Image

Background removed: Hanging Plant in Window — Without Background

Alpha matte prediction: Hanging Plant in Window — Alpha Matte (Model Prediction)

Red flower stem on a balcony with bokeh city buildings and autumn trees in the background

Shot with Canon 5D (Canon 5D Mark II with Takumar 50mm f/1.4)

Original image: Red Flower on Balcony — Original Image

Background removed: Red Flower on Balcony — Without Background

Alpha matte prediction: Red Flower on Balcony — Alpha Matte (Model Prediction)

Thin wild grass seed stem in focus against blurred autumn foliage background

Shot with Smartphone (Samsung Galaxy S21)

Original image: Grass Seed Stem — Original Image

Background removed: Grass Seed Stem — Without Background

Alpha matte prediction: Grass Seed Stem — Alpha Matte (Model Prediction)

Green compound leaf with raindrops in focus against blurred groundcover background

Shot with Smartphone (Samsung Galaxy S21)

Original image: Compound Leaf with Raindrops — Original Image

Background removed: Compound Leaf with Raindrops — Without Background

Alpha matte prediction: Compound Leaf with Raindrops — Alpha Matte (Model Prediction)

Clusters of bright orange berries on a leafy branch with blurred sky and trees in the background

Shot with Smartphone (Samsung Galaxy S21)

Original image: Orange Berries on Branch — Original Image

Background removed: Orange Berries on Branch — Without Background

Alpha matte prediction: Orange Berries on Branch — Alpha Matte (Model Prediction)

Rocky coastline and blue sea with a leafy bush in the foreground under a hazy sky

Shot with HP 635 Digital Camera (HP 635 Digital Camera - 2.1MP)

Original image: Rocky Coast with Bush — Original Image

Background removed: Rocky Coast with Bush — Without Background

Alpha matte prediction: Rocky Coast with Bush — Alpha Matte (Model Prediction)

Balcony planter with white and purple flowers against blurred apartment buildings in the background

Shot with Canon 5D (Canon 5D Mark II with Takumar 50mm f/1.4)

Original image: Balcony Flower Planter — Original Image

Background removed: Balcony Flower Planter — Without Background

Alpha matte prediction: Balcony Flower Planter — Alpha Matte (Model Prediction)

animal#

Terrier dog mugshot with complex hair details and challenging edge transitions

AI-generated with midjourney

Original image: Terrier Dog Mugshot — Original Image

Background removed: Terrier Dog Mugshot — Without Background

Alpha matte prediction: Terrier Dog Mugshot — Alpha Matte (Model Prediction)

Close-up tabby cat with green eyes indoors near a window

Shot with Smartphone (Galaxy S5)

Original image: Tabby Cat Portrait — Original Image

Background removed: Tabby Cat Portrait — Without Background

Alpha matte prediction: Tabby Cat Portrait — Alpha Matte (Model Prediction)

Film Camera#

Person with curly hair in a hoodie standing on a rocky mountaintop at sunrise, with hazy ridgelines in the distance

Shot with 35mm Film Camera (Zenit 11 with Helios 44-2 58mm f/2)

Original image: Back View at Mountain Sunrise — Original Image

Background removed: Back View at Mountain Sunrise — Without Background

Alpha matte prediction: Back View at Mountain Sunrise — Alpha Matte (Model Prediction)

Small wooden fishing boat loaded with gear on calm water, captured in black and white

Shot with Medium Format Film (Lubitel 166)

Original image: Small Fishing Boat — Original Image

Background removed: Small Fishing Boat — Without Background

Alpha matte prediction: Small Fishing Boat — Alpha Matte (Model Prediction)

Two city bikes standing on a dry field, with a small vase of yellow flowers on the foreground bike’s handlebar

Shot with 35mm Film Camera (Pentax)

Original image: Two Bikes in Field — Original Image

Background removed: Two Bikes in Field — Without Background

Alpha matte prediction: Two Bikes in Field — Alpha Matte (Model Prediction)

Start building with Focus model

Open source Python library for fast background removal.

View the GitHub repositoryClone the repo, explore the code, and contribute.