Strata — Planetary Stacking

Beschreibung

Strata takes a planetary, lunar, or solar capture from raw video to a finished image in one native macOS app: frame quality analysis, multi-point alignment, stacking, derotation, wavelet sharpening, color, and export, every heavy stage on the GPU through Metal. A workflow that has meant several Windows tools and a virtual machine runs here as one guided pipeline. IMPORT - SER video, the standard planetary capture format - The uncompressed RAW8 AVI subset written by ZWO ASIAir and ASICap - Already-stacked images (16-bit TIFF, PNG, JPEG, FITS) enter directly at Sharpen - Truncated captures are recovered, not rejected: every complete frame is read and counted - SER Utility: a health report on any SER file, and a repaired copy for the faults that can be fixed EQUIPMENT - Profiles for telescope, Barlow or reducer, camera, and filters, with focal ratio, image scale, and field of view computed live - Each capture remembers the rig it was shot through; Laminar captures fill this in automatically - Strata spends those numbers: drizzle advice matched to your aperture and wavelength, and a deconvolution PSF sized from your equipment ANALYZE - GPU frame quality scoring across every frame in a capture - An interactive selection curve: set your keeper percentage against the data rather than a guess - Keep the top percentage or a fixed frame count for consistent noise across a sequence - Normalize Capture, an optional hygiene pass for brightness or level drift BATCH ANALYSIS - Score a whole night of captures at once and rank them in a single comparison table - Quality curves, usable frame counts, and a suggested selection per file, side by side; export as CSV STACKING - Three methods: Strata Warp, the default; Strata Warp+ for fine surface detail; Simple Average for speed - Strata Warp aligns globally, then refines local shifts at every alignment point, correcting seeing distortion across the frame - Strata Warp+ ranks frames at every alignment point by local sharpness, so each region keeps its own sharpest moments - Automatic alignment point placement, filtering, and sizing, with Balanced and Poor Seeing profiles - Drizzle super-resolution at 1.5x, 2x, and 3x for undersampled captures SHARPENING - Three engines: 6-layer wavelets, Wiener deconvolution with a modeled PSF, and Solar Tone - Multiple wavelet passes, so fine detail can be drawn out gradually rather than forced in one step - Micro Contrast for sub-pixel detail - Work in Luminance or per-channel RGB, and choose which channels build luminance - Real-time GPU preview, with Original, Enhanced, and split Comparison views DEROTATION - Combine several captures of one planet into a cleaner image than any single one can give - Saturn gets a physical model: ring angle, tilt, and disk size measured from the image itself, no ephemeris data needed - Stacks of differing sizes align onto one canvas, and blending hands off seamlessly at the limb and rings COLOR - Automatic RGB channel alignment to correct atmospheric dispersion - Histogram controls, saturation, and color balance - Mineral Moon and solar color treatments WORKFLOW - A guided seven-phase pipeline: Import, Analyze, Stack, Derotate, Sharpen, Color, Export - Processing profiles record every setting and replay them on other files, or on a whole folder unattended - Export to 16-bit TIFF, PNG, JPEG, and FITS with filename templates and processing metadata LANGUAGES - English, German, Italian, French, Spanish, and Brazilian Portuguese - Translations are new: if something reads wrong, send a screenshot to [email protected] BUILT FOR THE MAC - Native Swift and SwiftUI, not a port - Metal GPU acceleration throughout, optimized for Apple Silicon - Keyboard shortcuts, light and dark appearance, and a built-in Help Book Strata is the Process step in the Mac Observatory Suite, alongside Laminar for capture and Meridian for archiving. Each app works on its own. Requires macOS 14.6 or later and a Metal-capable GPU.

Strata 1.4.4 rebuilds Saturn derotation, fixes automatic channel alignment and fixes a blank Sharpen screen after dropping in a still image. SATURN DEROTATION - Every image in a session is now used. Derotation no longer rejects the images whose exposure best matches the reference. - No more faint circle inside the globe, and no dark line where the rings cross in front of it: the planet keeps its natural darkening toward the edge, and the rings stay in place. - The ring tilt now comes from the capture date, read from the SER file, a Strata export or the file name. - New Image orientation setting in Combine Settings: Auto, Not mirrored or Mirrored. A star diagonal or a flip setting in your capture software mirrors the image, which reverses Saturn's apparent rotation. Choose the setting that matches your setup, or leave it on Auto, which tries both directions and keeps the one that lines up better when the images show it clearly. FIXES - Auto Detect in Color now measures small color fringes correctly, including on sharpened images. If a saved profile holds channel offsets from an earlier Auto Detect, run Auto Detect again. - A still image dropped onto Strata opens in Sharpen with its controls, instead of a blank screen. ALSO - The Help Book gives the correct folder for saved profiles and describes the new derotation settings.

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Andrew Burwell

Kategorie

Photo & Video

Version

1.4.4

Erfordert

iOS 14.6+

Größe

16.1 MB

Altersfreigabe

4+