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Sheffield Softworks Keyper

by Sheffield (FxFactory)·VFX

Images © Sheffield (FxFactory). Used for product review; image policy.

Why we like it

Keyper stands out in the toolfarm library for isolating people with Apple's Machine Learning instead of a green screen, and version 2.1 adds a Subject detector on macOS 14 Sonoma and later.

What is Sheffield Softworks Keyper?

Sheffield Softworks Keyper is a people keyer that uses Machine Learning to extract people from their backgrounds without requiring a green screen or prepared backdrops. It runs in After Effects, Premiere Pro and DaVinci Resolve, as well as Final Cut Pro X and Motion. Rather than replacing traditional green screens used in special effects shots, Keyper lets you apply filters and effects separately to the people and/or the backgrounds, creating effects such as 3D still photos and the parallax effect.

People are not tracked between frames — each frame is analyzed on its own — and all people recognized by Apple's Machine Learning are separated from the background. Version 2.0 adds keyframeable preprocessing for brightness, saturation, contrast, sharpness and LUT loading that does not alter the output image, along with matte processing modes (Full, Outline, Inline, Core, Combo), a Colored Matte output with Alpha, and a Patch control.

Version 2.1 adds a Subject detector for macOS 14 Sonoma and later that identifies human and non-human subjects. Keyper requires Noise Industries FxFactory to run and works on Apple Silicon and Intel processors.

Who is Sheffield Softworks Keyper best for?

Sheffield Softworks Keyper is best for after Effects, Premiere Pro and DaVinci Resolve editors who need to separate people from backgrounds without a green screen and treat them independently.

How much does Sheffield Softworks Keyper cost?

Sheffield Softworks Keyper is completely free to download and use.

Key features

  • Extracts people from backgrounds with Machine Learning, without a green screen or prepared backdrops
  • Applies filters and effects separately to the people and/or the backgrounds
  • Matte processing modes — Full, Outline, Inline, Core and Combo, with Outline, Inline and Core controlled by Width and Edge
  • Keyframeable preprocessing for brightness, saturation, contrast, sharpness and LUT loading that does not alter the output image
  • Output offerings including Composite, Matte, Matte over Background, and Colored Matte with Alpha
  • Patch control to fill a hole in the matte, block out unwanted subjects, or include only the person covered by the patch
  • Subject detector on macOS 14 Sonoma and later that identifies human and non-human subjects

Tags

#machine learning keying#people keyer#background separation#matte processing#FxFactory#parallax#green screen alternative

Frequently asked questions

Does Keyper work with After Effects, Premiere Pro and DaVinci Resolve?

Keyper works in After Effects, Premiere Pro and DaVinci Resolve, along with Final Cut Pro X and Motion, on Apple Silicon and Intel processors. The product requires Noise Industries FxFactory to run, which is a free download; FxFactory Pro is a paid version with the same system requirements. For current, detailed system requirements, refer to the FxFactory page. Note that the Subject detector introduced in version 2.1 requires macOS 14 Sonoma or later.

Does Keyper track people between frames?

Keyper analyzes each frame on its own and does not track people between frames. Every person recognized by Apple's Machine Learning is separated from the background frame by frame. Because of this, Keyper is not a replacement for traditional green screens used in special effects shots; instead, it lets you apply filters and effects separately to the people and/or the backgrounds, creating effects such as 3D still photos and the parallax effect.

What does the Subject detector in Keyper 2.1 do?

Keyper 2.1 introduces a Subject detector for users on macOS 14 Sonoma and later. The existing Person detector works just as it did in previous versions, while the Subject detector identifies human and non-human subjects and can sometimes do a better job of selecting people. Keyper 2.1 is a free update for existing customers and continues to work on earlier versions of macOS, except for the Subject detector, which needs Sonoma or newer.

What matte and output options does Keyper 2.0 provide?

Keyper 2.0 offers matte processing modes including Full, Outline, Inline, Core and Combo, with Outline, Inline and Core controlled by Width and Edge. Output offerings include Composite, Matte, Matte over Background, and Colored Matte, which is a colored matte with Alpha. Version 2.0 also adds Patch, which you can use to patch a hole in your matte, block out something or someone you do not want included, or include only the person covered by the patch.

Is Keyper free to use?

Keyper is listed as free in this catalog. It does require Noise Industries FxFactory to run, which itself is a free download, while FxFactory Pro is a paid version with the same system requirements. For current licensing details and any conditions, check the developer's page. Keyper 2.1 is noted as a free update to existing customers, continuing to work on earlier versions of macOS aside from the Subject detector, which requires macOS 14 Sonoma or later.

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