SKOTIQ 8.1 · GUIDE
Drizzle and linear exports
Drizzle settings, output sizes and FITS exports.
On this page
What drizzle changes
Skotiq 8.1 offers 1×, 2×, 3× and 4× drizzle with configurable parameters. Drizzle combines source-pixel samples from offset exposures onto an output grid. It works best with undersampled images and a good spread of subpixel offsets between exposures.
At 2×, both image dimensions double and the pixel count is four times larger. At 3× it is nine times larger, and at 4× sixteen times. Processing time, memory and storage grow substantially.
Before choosing a scale
Look at the original star sampling, seeing, focus, guiding and dither pattern. Start with 2× for a comparison when your data supports it. Compare results at the same angular scale, not simply at the same zoom percentage.
Check star shapes, dust-lane detail, noise and empty-sky texture. A higher-resolution file may print more smoothly without showing a corresponding increase in real resolved detail.
Keep coverage consistent
Use framing review to exclude unsuitable images before the build. Retain a common crop across the filters you will combine. Inspect the edges and any residual low-coverage patterns after integration.
Export for further editing
Keep the linear floating-point masters and the build report. They preserve your calibration, integration and frame decisions. Use RGB/LRGB composites as a starting point, or process each filter separately in your preferred editor.
The NGC 891 image on this site used Skotiq capture and 2× drizzle integration, then individual-filter background work and a separate finish in PixInsight with GraXpert and RC Astro tools.