Load
Open TIFF, FITS, DNG, PNG or JPEG images and inspect the frame with smooth zoom, pan and drag-and-drop import.
Astro Background Extractor
Reveal the signal behind the glow.
Remove uneven sky background, light pollution and color contamination while preserving stars, nebulae and the structure that belongs in your image.
Astro Background Extractor is a focused desktop application for cleaning astronomical and night-sky images before stretching, color work and final processing.
Focused workflow · real-time preview · 16-bit processing · Windows and macOS
A cleaner starting point
Correct the background without flattening the sky
Broad gradients, artificial sky glow and unwanted color casts can hide faint signal and make every later adjustment harder. Astro Background Extractor estimates the unwanted background, lets you control the correction and gives you an immediate visual comparison before export.
Extract
Analyze luminosity and sky background, then control the balance between gradient reduction and preservation of stars and nebulae.
Refine & export
Correct green casts and white balance, preview the change, then export a clean 16-bit TIFF or a web-ready PNG/JPEG.
Real images, visible correction
Before & After
Open any comparison to inspect the full image.
See the workflow
From uneven background to a cleaner image
The original demonstration video remains part of the page, now presented inside the same visual system as the rest of the AstroPanel ecosystem.
Designed for direct visual control
Program Interface
Load the image, inspect the result and adjust extraction, opacity, stretch and color from one focused workspace.
Core capabilities
Everything needed for focused background correction
Supported formats
Import TIFF, FITS, DNG, PNG and JPEG. Export 16-bit TIFF, PNG or JPEG with a high-dynamic-range workflow.
Intelligent extraction
Luminosity analysis targets sky glow and uneven background while protecting stars and nebulae.
Opacity control
Use a real-time 0–100% control to balance background reduction against natural detail.
HLVG & white balance
Reduce unwanted green and color casts while protecting highlights and shadows.
Auto-Stretch
Preview linear astronomical data with automatic histogram stretching for immediate inspection.
Fast inspection
Zoom, pan, drag and drop, compare before/after and preview every correction before saving.
Part of the wider ecosystem
Use it alone—or inside Fusion Lab
Choose Astro Background Extractor when you want a focused standalone tool for gradient removal and sky-background correction.
For a complete workflow that also includes calibration, stacking, editing, AI Background Extractor, AI Astro Blend and professional export, Astro Background Extractor technology is integrated directly into Fusion Lab's Astro Editor.
Who it is for
- Amateur astrophotographers looking for a simpler clean-up workflow
- Experienced users who want focused, high-fidelity control
- Astronomy enthusiasts processing Deep-Sky images
- Night-landscape photographers working under light pollution
Compatibility
System requirements
macOS
- Apple Silicon (M1–M4), ARM64
- Minimum: macOS 11 Big Sur
- Recommended: macOS 13 Ventura or later
- DMG drag-and-drop installation
- Approximately 267 MB installed
Windows
- 64-bit Intel or AMD processor
- Minimum: Windows 10 64-bit
- Recommended: Windows 11 22H2 or later
- Standard NSIS installer
- Visual C++ Runtime included
Choose your access
Simple standalone purchase or the complete ecosystem
Astro Background Extractor
One-time purchase · one license key · three devices
€29
Perpetual license for the standalone application.
BUY NOWLifetime Access
Unlimited downloads and access to the AstroPanel ecosystem
€269
Includes current and future products, 15 extra license keys and priority email support.
GET LIFETIME ACCESSStart from a cleaner sky
Remove the unwanted background.
Keep the astronomical detail.
Build a stronger starting point for stretching, color and final processing.
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