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Multi-Camera Final Refinements in Affinity Photo: NGC 6744 Processing
In this final part of the NGC 6744 tutorial, Telescope Live tutor Nik Szymanek completes the image processing workflow by applying cosmetic corrections and color refinements in Affinity Photo. Key steps include:
Combining Luminance and RGB for LRGB Processing:
- Convert the luminance image to a 16-bit RGB file and merge it with the RGB image for enhanced detail.
- Flatten the image and export it as a high-quality TIFF file.
Gradient Removal and Star Integration:
- Extract stars using PixInsight’s Star Exterminator and process them separately.
- Use Graxpert AI for automatic background gradient removal before reintroducing stars.
Final Color and Detail Enhancements:
- Apply Tone Mapping for subtle contrast boosts in the galaxy without affecting the background.
- Use Selective Color and Clarity tools to refine spiral arm structures and highlight Hα regions.
This final stage brings out the full depth and color of NGC 6744, wrapping up a comprehensive multi-software workflow.
Post-Processing Multi-Camera Data in PixInsight - NGC 6744
In this follow-up to the stacking multi-camera data tutorial of NGC 6744, Telescope Live tutor Nik Szymanek expands on the dataset integration process, moving from Astro Pixel Processor (APP) to PixInsight for advanced image refinement. Key steps include:
Finalizing Stacking and RGB Combination in APP:
- Integrate all CCD and CMOS frames to produce high-quality LRGB masters.
- Use Multiband Blending (MBB) to seamlessly merge different datasets.
Processing in PixInsight:
- Crop Luminance and RGB images to a uniform size using Dynamic Crop.
- Apply BlurXTerminator to enhance detail through deconvolution.
- Use Gradient Correction to remove residual sky gradients.
Noise Reduction and Image Scaling:
- Utilize NoiseXTerminator AI3 for effective noise suppression with real-time previews.
- Adjust histogram settings to control brightness and preserve background details.
This tutorial sets the stage for the final enhancements in Affinity Photo, covered in the next tutorial.
Stacking and Integrating Multi-Year Datasets in Astro Pixel Processor
In this tutorial, Telescope Live tutor Nik Szymanek demonstrates how to combine astrophotography datasets taken years apart with different cameras using Astro Pixel Processor (APP). This method enables seamless integration of large datasets while maintaining high image quality. Key steps include:
Loading and Organizing Data:
- Import and analyze datasets captured with an FLI PL9000 CCD and a QHY 600M CMOS camera.
- Understand how APP handles different sensor sizes and orientations.
Calibration and Registration:
- Use APP’s Analyze Stars tool to assess sub-exposure quality and remove outliers.
- Fine-tune registration settings to align frames from different imaging sessions.
Stacking and Color Combination:
- Normalize images to correct background variations across multiple nights.
- Use Multiband Blending (MBB) and RGB integration tools to generate the final color image.
This tutorial provides a step-by-step workflow for integrating diverse imaging data into a high-quality astrophotography result.
Siril Nebula Processing Master Class
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Siril Nebula Processing Master Class
This complete intermediate Siril master class by Telescope Live Co-Founder Alexander Curry pushes Siril to its processing limit providing you with a comprehensive workflow for any nebula dataset.
Across 6 episodes, Alex will guide you through all the techniques you would need to process a nebula dataset, focusing on a small 1hr dataset of the Seagull nebula, Alex will cover the following workflow:
Data Preparation and Stacking
- Satellite trail removal with Cosmic Clarity
- Data organisation and stacking with Telescope Live Siril scripts
Deconvolution with Cosmic Clarity
- Again using the Cosmic Clarity suite for a free “deconvolution” and sharpening tool
- Use your calculated PSF values for appropriate sharpening factors
Colour Calibration and De-Linearisation
- Plate solving and photometric colour calibration
- Histogram adjustments for first de-linearisation
Starless Workflow
- Star reduction using StarNet++
- Adjustment to star layers for colour clarity and halo reduction
- Subsequent luminance preparation
Colour Adjustments and Luminance
- Starless colour adjustments and balancing
- Optional (for HaRGB) Ha enhancement workflow
- Luminance integration
Denoise and Finishing Touches
- Denoising with Cosmic Clarity/GraXpert
- Star layer re-compositing