Go beyond a basic stack. Calibrate Light, Dark, Flat and Bias frames; process Deep-Sky and comet sequences; build star trails, long exposures and focus stacks; merge HDR brackets; and create single-row or multi-row panoramas.
02
EDIT
Choose the editor built for the image in front of you. Develop RAW photography in Photo Editor or use Astro Editor for gradient extraction, stretching, color calibration, luminosity masks, star processing and targeted astrophotography adjustments.
03
BLEND & EXPORT
Combine a tracked sky with a foreground through AI Astro Blend, refine alignment and masks by hand, then export for print or web with resizing, sharpening, watermarks and embedded ICC profiles.
One connected workspace
One workspace, not a chain of disconnected apps
Fusion Lab keeps the entire job together: source files, processing parameters, previews and exported results. Move a result directly from stacking or panorama creation into Astro Editor or Photo Editor, save the workflow as a Fusion project and reopen it later.
Recent projects with previews, metadata and missing-source relinking
Persistent Processing Queue with safe sequential execution and interruption recovery
Live CPU, RAM, disk and GPU status
Contextual AIRI assistant, expanded Learn, FAQ and tooltips
Verified automatic updates
11 interface languages with non-destructive runtime switching
Fusion Lab 1.0 RC2 Home — the complete workflow menu, recent projects, system status and project details.
Fusion Lab 1.0 RC3 · 7 August 2026
Local masking, shared geometry and scientific-format fidelity.
RC3 connects AI Astro Blend, Astro Editor, Photo Editor and Star Effects through the same precise geometry and mask logic—while expanding color science, XISF support and full-resolution AI processing.
Build 1.0.0.4
RC1 and RC2 projects remain openable. Legacy model paths and geometry parameters are migrated automatically with safe fallbacks.
AI ASTRO BLEND
Persistent Sky and Ground
Local Masking keeps semantic Sky and Ground layers alive, synchronized and independently adjustable without creating duplicate masks.
LOCAL MASKING
HOLD, refine, then Done
Feathering, Ground Edge, per-layer erasing, exact mask preview and local Undo/Redo stay inside one modal editing session.
GEOMETRY
One crop engine everywhere
Eight-handle crop, photographic ratios, decimal rotation, ±90°, flip and straightening now behave consistently across four workspaces.
ASTRO QUALITY
Local color intelligence
Astronomical white balance, star-based photometric calibration, chromatic-aberration correction and Sigma/MTF stretch strengthen scientific and visual accuracy.
XISF 1.0
Native scientific interchange
Read, inspect and export UInt16 or Float32 XISF, including planar compressed attachments, byte shuffle and preserved scientific metadata.
FULL RESOLUTION
More robust AI processing
Global ONNX contracts, reusable sessions and explicit full-resolution background subtraction keep corrected images, gradient maps and diagnostics aligned.
AI Astro Blend & Local Masking
Persistent, synchronized Sky and Ground selections, masks and transformations
Sky alignment controls integrated directly into Local Masking
Independent Ground X/Y, rotation and scale controls
Crop / Transform reserved for manual layer movement on the canvas
HOLD mode exits through Done and records one coherent history step
AI recalculation starts only when a slider is released
Sky Feather, Ground Feather/Edge, eraser and exact semantic-mask preview
Separate Undo/Redo for sliders, masks and geometric transformations
Double-click restores each slider’s original value
Improved horizon protection and connected-ground recognition
Corrected opacity, local Adjust controls, full Reset and 16-bit export
Crop, rotation & shared geometry
Shared geometry engine across Astro Editor, Photo Editor, Star Effects and Astro Blend
Eight handles, movable crop area and selectable photographic ratios
Decimal rotation, ±90°, horizontal/vertical flip and straightening
Correct ruler rotation direction and Astro Blend aspect ratio
One coherent transform for images, layers, masks, stars and control points
Full-precision processing with no intermediate 8-bit conversion
Atomic history entries for Crop, Rotate, Flip and Straighten
Astro Editor & Photo Editor
Local astronomical white balance and star-based photometric calibration
Centered 1:1 zoom, Cmd/Ctrl + wheel, shared shortcuts, photographic guides and complete information bars across all four editors and viewers.
Refined interface
The Masks panel is cleaner and easier to scan, with unnecessary frames removed from slider rows.
Local Adjust — tonal, color, detail and effect controls applied only inside the active mask.AI selections and mask preview — shared Sky/Ground selection, overlay and manual refinement workflow.
Build 3 also improves work beyond the image edges, mask preview accuracy and local history reliability while keeping the editing pipeline non-destructive.
Fusion Lab 1.0 RC2
Everything added after RC1
RC2 expands the editing workflow, strengthens non-destructive project safety and improves AI, RAW, FITS and cross-platform reliability.
01
Unified Masks workspace
Shared Astro/Photo masking with layers, Refine, Adjust, previews, local history and accelerated manual brushes.
02
Star Effects Studio
Standalone Glow, diffraction-spike, Soft Flare and Ring Flare workflow with automatic or manual star selection and independent effect layers.
03
Astro Editor Base / RAW
RAW temperature and tint, exposure, contrast, highlights, shadows, whites, blacks, texture, clarity, dehaze, vibrance, saturation and HLVG.
04
Non-destructive Astro history
Visible future states, Undo/Redo and named snapshots now follow the Photo Editor model, with an isolated Starless baseline.
05
Safe Stars / Starless editing
Play, Edit and Finish behave as one transaction. Undo truly returns to the previous state, while Cancel never contaminates the image.
06
Editor autosave
Work is protected before a project is loaded, replaced or abandoned, reducing the risk of losing an active editing session.
07
AI Astro Blend Beta
Correct crop and canvas handling, more conservative registration, edge and star protection, halo suppression and photometric/chromatic matching.
08
Stronger RAW and color
As-shot metadata and white balance, highlight-safe AI White Balance, more robust temperature/tint and astro-safe handling of linear data.
09
11 languages
Switch language at runtime without disturbing the project. Learn, FAQ, tooltips and AIRI include broader coverage.
10
Cross-platform stability
CoreML CPU+GPU on Apple Silicon, ONNX CPU on Intel, DirectML on Windows, Unicode paths and more robust project saving.
11
Reliable FITS support
Correct Astro Editor loading and ABI-consistent CFITSIO headers and libraries strengthen scientific-format compatibility.
New in RC2
Star Effects Studio
Finish astronomical images with controlled, layered star effects—without leaving the Fusion Lab editing workflow.
Create Star Glow, diffraction spikes, Soft Flare and Ring Flare using automatic detection or precise manual star selection. Start with Essential controls, open Advanced parameters when needed, save presets and inspect the star mask or an Effects Only result in real time.
Star GlowStar SpikesSoft FlareRing FlareLive PreviewEffects Only
Control intensity, radius, length, angle, spike count, flare and color
Use different stars and settings on every layer
Reorder layers and adjust visibility or opacity independently
Combine delicate short spikes, longer rays on hero stars and separate Glow layers
Move directly between Astro Editor and Photo Editor non-destructively
Star Effects Studio — independent layers, automatic or manual star selection and advanced Glow and Spike controls.
Meet AIRI · Web + Fusion Lab
Your assistant in Fusion Lab—and on the AstroPanel website
AIRI understands the AstroPanel ecosystem, the Fusion Lab workspace you are using and the processing decision in front of you.
Use it inside Fusion Lab 2026 RC3 for context-aware guidance, or open the same assistant from your AstroPanel account when you are away from the application. AIRI access is included with your Fusion Lab license.
AIRI adapts its guidance to the active Fusion Lab workspace and keeps every recommendation visible and reviewable.
Guidance built around the workflow in front of you
From Standard Calibration, Deep-Sky, Comet and Focus Stacking to Photo Editor, Astro Editor and AI Astro Blend, AIRI can explain controls, interpret visible issues and suggest the next useful check.
Understand context
Recognizes the active editor, workflow and available project context.
Analyze a preview
Examines an optional reduced, metadata-free preview after consent.
Choose the next step
Turns the current result into a clear sequence of checks.
Explain controls
Clarifies masks, stacking, color, export and Astro Blend parameters.
Show its sources
Links relevant documentation, guides, FAQs and release notes.
Use AIRI inside Fusion Lab 2026 RC3
Activate or verify your Fusion Lab license, open Settings → AIRI, select Cloud service and start a conversation. AIRI can receive the active workspace, selected language and relevant help context so its answers stay specific to your task.
Use AIRI on the AstroPanel website
Sign in with the AstroPanel account connected to your Fusion Lab purchase, open AIRI and start a new conversation. Your recent web conversations remain available in the AIRI workspace.
Optional image analysis, with explicit consent
When you attach an image, Fusion Lab or the browser prepares a reduced preview without metadata. The original file is never uploaded, the gateway does not retain the preview and the AI service key remains protected on the AstroPanel server.
Advice stays under your control
AIRI analyzes, explains and recommends; it does not apply edits to the image. You review every suggestion and decide what to change. If the cloud service is unavailable, Fusion Lab's local Learn, FAQ and tooltips remain available.
Purpose-built imaging intelligence
Two specialized image-processing AI engines
Alongside the AIRI assistant, Fusion Lab includes two different AI imaging engines, each designed for a specific astrophotography problem.
AI 01
AI Background Extractor — integrated into Astro Editor
Estimate and remove uneven illumination, broad color casts and low-frequency gradients without placing a manual sample grid. Inspect the proposed background model before applying it, then continue with stretch, color, masks and star processing in the same workspace.
AI Strength, Structure Protection and residual-gradient controls keep the correction reviewable and help preserve stars, nebulae and faint astronomical structure. Processing runs locally, while Polynomial and RBF extraction remain available as classical alternatives.
AI 02
AI Astro Blend Beta — tracked sky and foreground fusion
RC3 introduces persistent Sky and Ground layers inside Local Masking, with independent alignment, transform, feathering and edge controls plus a safer HOLD → Done workflow.
Sky/Ground selections, masks and transformations stay synchronized. Full-resolution 16-bit export, horizon protection, opacity, Adjust controls and complete Reset behavior are more reliable.
AI Background Extractor cleans and prepares the astronomical image; AI Astro Blend combines a finished sky with the landscape.
AI Background Extractor
Reveal the signal behind an uneven sky.
Remove broad gradients and unwanted color from astronomical images while keeping the correction visible, adjustable and under your control.
AI Background Extractor estimates the low-frequency background separately from the astronomical subject. It is designed for difficult illumination patterns such as vignetting, light-pollution gradients and chromatic contamination, with Structure Protection helping retain stars, nebulae and faint detail.
Local, reviewable processing
The image is processed on your computer. Preview the estimated background, compare the original and current result, adjust the correction strength and continue inside Astro Editor without breaking the workflow.
Parameter scale comparison
Fusion AI Background V10 uses approximately 54 million trainable parameters. Across the model lineage, capacity expanded from 2 million parameters in V2 to 17 million in V5 and 54 million in V10, supporting progressively richer representations of spatial gradients, chromatic variation and astronomical structure.
0M10M20M30M40M54M
Fusion AI Background V22M
Fusion AI Background V517M
Fusion AI Background V1054M
Before and after — a broad chromatic gradient is reduced while the nebular field and stars remain visible. MTF preview/export shown at 15% background and 3σ.Before and after — uneven illumination is controlled across a dense stellar field. MTF preview/export shown at 10% background and 3σ.
STF · SCREEN
Inspect linear data clearly
STF applies an automatic Screen Transfer Function for display only. It reveals the background, faint signal and residual gradients without changing the underlying linear pixels — ideal for evaluating the extraction before committing to the next processing step.
MTF · PREVIEW / EXPORT
Control the visible rendering
MTF provides a controlled Midtones Transfer Function with an adjustable target background and sigma range. Use it to compare versions consistently and export a stretched, presentation-ready rendition when a visible result is required.
LINEAR · MASTER
Keep the scientific workflow intact
Background estimation and display stretching remain separate. Preserve or export the corrected linear master for continued scientific processing, and use STF or MTF only when you need a readable preview or a rendered output.
AI Background Extractor has been evaluated on held-out astronomical scenes across multiple gradient families. Results remain image-dependent; full-resolution visual inspection is always recommended before final export.
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The complete toolkit
16 dedicated workflows
Open a category to explore the tools built for astrophotography, multi-exposure photography, editing and inspection.
Astrophotography
Standard Calibration
Import and classify Light, Dark, Flat and Bias frames. Inspect calibration masters, preflight Light-frame quality and stack with Mean, Median, Winsorized Sigma Clipping or Linear-Fit Clipping.
Quality weighting, Drizzle 2×, rejection-map export, adjustable sigma, stellar registration, RGB balance and linear 16-bit or 32-bit TIFF output are included.
Deep-Sky Stack
Calibrate optional Dark, Flat and Bias frames, align the Light sequence and combine it as LRGB, HOO, SHO/Hubble or RGB plus narrowband. Export 16-bit TIFF, 32-bit float TIFF or 32-bit float FITS.
Comet Processing
Calibrate the sequence, detect the comet nucleus and register Light frames on its motion. Choose Mean or Median integration while preserving chronological capture order.
Star Trails
Combine a fixed-camera sequence with Lighten/Maximum, Mean, Comet Trail or Reverse Comet Trail. Smooth tapering creates a controlled bright head and fading tail.
Star Effects Studio NEW
Create Glow, diffraction spikes, Soft Flare and Ring Flare with automatic/manual star selection, Essential and Advanced controls, presets, masks, Effects Only output and a real-time preview.
Multiple layers can use different stars and effects, with independent visibility, order and opacity.
AI Astro Blend BETA
Blend a tracked sky with a foreground at original resolution. Automatic sky segmentation uses an ONNX model with a classical fallback; registration supports translation, similarity, affine, homography or local mesh warp.
Refine paired control points, positioning and masks; match exposure, color, local contrast and noise; protect stars; suppress halos; and choose edge-aware or multiband blending. The Quality Map identifies seam risk, doubled stars, halos, uncertain registration and noise discontinuities.
AI Background Extractor
Estimate and remove uneven astronomical backgrounds with Structure Protection and an adjustable gradient-model preview. Use STF to inspect linear data without changing it, or MTF preview/export to create a controlled visible rendition. Polynomial and RBF extraction remain available as classical alternatives.
Astro Editor
Continue directly from calibration or stacking into a dedicated astrophotography editor with Base/RAW development, stretch, color calibration, masks, Starless processing, history and layered star effects.
Photography and multi-exposure
Silk / Long Exposure
Align and average a tripod sequence to smooth water and clouds at full resolution. Choose Mean for a natural long-exposure effect or Median to reduce transient elements.
Focus Stacking
Merge the sharpest local detail from frames focused at different distances—designed for macro, product and landscape sequences.
Mean Stack Denoise
Register repeated photographs of the same static scene and combine them with Mean or Median integration to reduce random noise.
Night Painting
Use Lighten/Maximum blending to combine the brightest pixels from multiple light-painting passes while preserving the fixed scene.
HDR
Align bracketed exposures through full-resolution exposure fusion. Select gentle, balanced or strong highlight recovery, work in 16-bit or 32-bit and start from 15 HDR looks.
N-HDR — Night Photography
Develop urban and suburban night brackets with dedicated highlight recovery, automatic exposure ordering and 32-bit tonal precision, then refine color casts, urban lights, structure, haze and gradients.
Panorama — Photomerge & Fusion Pano
Find overlaps, estimate camera geometry and blend full-resolution photographs. Use Auto, Perspective, Cylindrical, Spherical, Collage or Fusion Pano Multi-row projection with Astro, Terrestrial and multi-row profiles.
Inspect correspondences, add control points, remove outliers, preview seams, normalize exposure and color, apply final RGB balance and choose Safe, Bounding or No Crop. Auto-stretch affects the preview only—not linear output.
Photo Editor
Develop RAW photography with complete tonal and color controls, local retouching, luminosity masks, non-destructive history, snapshots and full-resolution professional export.
Panorama — overlap analysis, control points, full-resolution preview and linear 32-bit TIFF output.
Editing and inspection
Two editors, built around the image
Photo Editor
A complete photographic development environment with real-time preview, non-destructive history and full-resolution export. It combines conventional RAW development, local retouching and dedicated tools for monochrome and urban night photography.
Core photographic development
RAW controls: temperature, tint, exposure, contrast, highlights, shadows, whites, blacks, texture, clarity, dehaze, vibrance and saturation
Tone Curve and per-color HSL controls
Orton and Glow with independent intensity, radius and contrast
Dodge, Burn, Water, Light Magic, Foliage and Atmosphere controls
Multiscale luminance and color-noise reduction with structure and star protection
Hot/cold-pixel removal, sharpening, chromatic-aberration correction and vignette controls
Undo/redo history, named snapshots and interactive Before/After comparison
Black & White
A complete monochrome development section, not a simple desaturation switch. An eight-channel mixer controls how Reds, Oranges, Yellows, Greens, Cyans, Blues, Purples and Magentas translate into grayscale.
Refine the result with dedicated contrast, cool-to-warm toning and film grain. Natural, Portrait, Landscape and Dramatic Sky presets provide useful starting points while every channel remains adjustable.
N-HDR / Urban Night
Designed to finish night-photography brackets created by Fusion Lab's N-HDR merge, with targeted Yellow, Red and Magenta Cast controls. Urban Lights recovers color and detail in artificial lighting, Structure restores local definition, and Haze / Gradients controls atmospheric contamination and uneven illumination.
Unified Masks and targeted editing BUILD 3
Use luminosity ranges, AI Sky/Ground selections, manual Brush+, Brush− and Eraser tools, ranges and combinations inside the same Masks workspace shared with Astro Editor.
Refine a selection, preview its overlay, then open Adjust to apply any Photo Editor adjustment family locally. HOLD / LOCKED limits the left-column development controls to the active selection, and Done records the complete edit as one history state.
Photo Editor — full-resolution photographic development with live, non-destructive preview.
Astro Editor
A dedicated environment that brings Astro Background Extractor and the complete astrophotography finishing workflow together in Fusion Lab.
AI Background Extractor and gradient control
Integrated AI Background Extractor for full-image gradient estimation with local processing
AI Strength, Structure Protection, gradient smoothing, chromatic-background correction and background denoise
Adjustable gradient-model overlay for inspecting exactly what Fusion Lab intends to remove
Built-in Polynomial and RBF classical extraction with automatic fallback when AI is unavailable
Astro Editor Base / RAW RC2
As-shot metadata and white balance with highlight-safe AI White Balance
RAW temperature and tint, exposure, contrast, highlights, shadows, whites and blacks
Texture, clarity, dehaze, vibrance, saturation and HLVG
More robust temperature/tint controls and astro-safe handling of linear data
Stretch, color and masks
Reliable FITS loading, linear auto-stretch, interactive histogram levels and multi-channel tone curves
Automatic image-type detection, white balance and color calibration with protections for saturated and emission colors
HSL, selective color and narrowband color tools
Unified Masks workspace shared with Photo Editor: luminosity and AI selections, Refine, Adjust, ranges, previews and manual painting
HOLD / LOCKED applies the left-column controls only to the active selection and Done creates one clean history state
Stars, history and Astro Enhance
Transaction-safe Starless/stars Play, Edit and Finish; Undo restores the true previous state and Cancel leaves no contamination
Visible future states, Undo/Redo and named snapshots with an isolated Starless baseline
Star Effects Studio for layered Glow, spikes, Soft Flare and Ring Flare effects
Astro Enhance for urban light-pollution reduction, nebula signal, dark-sky control and false Hα/OIII
Separate sharpening for stars, structures and landscape texture, plus halo and noise protection
Editor autosave protects work before loading, replacing or abandoning a project
FITS and project reliability
RC2 corrects FITS loading inside Astro Editor and aligns CFITSIO headers and libraries at ABI level. Unicode paths, autosave and project persistence are more robust across supported platforms.
Astro Editor RC2 — background extraction, Base/RAW controls, history and a complete Milky Way development workflow.
Image Viewer
Open supported photographic and scientific formats with metadata, zoom and inspection tools before choosing the next workflow.
Quality before rendering
Identify weak inputs before they damage the result
Light-frame Preflight
Analyze star count, FWHM, eccentricity, SNR, clipping, color casts and motion. Every frame receives a quality score and a conservative keep/reject recommendation.
Calibration Inspector
Inspect master Bias, Dark and Flat statistics, defective pixels, illumination, vignette maps, defect maps and compatibility warnings.
Panorama diagnostics
Validate overlap and geometry without composing the full panorama, with confidence, inliers, seams and corrective actions recorded in the diagnostic log.
Professional output
Ready for web, print or scientific processing
Export JPEG, PNG, 16-bit TIFF or 32-bit float TIFF. Resize to a target width, sharpen the output, position a PNG watermark, control JPEG quality or maximum file size, and convert to sRGB, Adobe RGB (1998), ProPhoto RGB or Display P3 with the ICC profile embedded.
Scientific workflows can remain linear; Deep-Sky also supports 32-bit float FITS.
Full resolution
Bounded previews, cancellable jobs and memory-aware execution keep large imaging projects under control. The persistent queue processes demanding jobs sequentially and safely restarts interrupted work.
Selected operations use Metal acceleration on supported Apple systems. Compatible AI models run through ONNX Runtime, with classical fallbacks where available.
The complete bundle
More than a stacker: the full imaging workflow
Fusion Lab brings capture preparation, stacking, photographic development, astrophotography processing, AI tools and professional delivery into one license and one non-destructive project environment.
STACKING
Astrophotography
Standard calibration with Light, Dark, Flat and Bias
Deep-Sky and narrowband stacking
Comet processing and Star Trails
Quality preflight and calibration inspection
MULTI-EXPOSURE
Photography
Silk / Long Exposure and Mean Stack Denoise
Focus Stacking and Night Painting
HDR and dedicated N-HDR
Single-row and multi-row Panorama
EDITING
Two complete editors
Photo Editor with RAW, tone, color and retouching
Astro Editor with stretch, calibration and Astro Enhance
Unified Masks, Refine, Adjust and manual brushes
History, Undo/Redo, snapshots and Before/After
AI & STARS
Specialized intelligence
AI Background Extractor
AI Astro Blend Beta
AI White Balance
Star Effects Studio and safe Stars/Starless editing
FORMATS & OUTPUT
From RAW to delivery
RAW, TIFF and reliable FITS support
16-bit and 32-bit linear processing
JPEG, PNG, TIFF and FITS export
ICC profiles, resizing, sharpening and watermarks
WORKSPACE
Built for real projects
Non-destructive Fusion projects and editor autosave
Persistent processing queue and system monitoring
AIRI, Learn, FAQ and contextual tooltips
11 languages and Windows/macOS support
16
Dedicated workflows in one bundle. Instead of moving files between separate stacking, panorama, RAW, astronomy and export applications, Fusion Lab keeps the complete image pipeline connected.
Release & compatibility
Fusion Lab 1.0 RC3 is available for macOS
Download RC3 for macOS Apple Silicon and Intel-based Macs. The current Windows 10 / 11 download remains RC2.
WINDOWS · RC2 AVAILABLE
Windows 10 / 11
The current Windows download remains RC2, with DirectML acceleration on supported systems, robust Unicode paths and safer project saving.
MACOS · RC3 AVAILABLE
Apple Silicon and Intel
RC3 is available now for macOS 13 or later, with verified Apple Silicon and Intel packages, CoreML CPU+GPU on Apple Silicon and ONNX CPU on Intel-based Macs.
EXISTING CUSTOMERS
Download it again from your account
If you have already purchased Fusion Lab, download the version currently available for your platform from your Account page.
Spend less time moving files between applications and more time refining the result—from calibrated frames to an image ready for web, print or the next creative stage.
