Gnuastro: visualizing the full dynamic range in color images
Fuente:
arXiv
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917561272107008 |
|---|---|
| author | Infante-Sainz, Raúl Akhlaghi, Mohammad |
| author_facet | Infante-Sainz, Raúl Akhlaghi, Mohammad |
| contents | Color plays a crucial role in the visualization, interpretation, and analysis of multi-wavelength astronomical images. However, generating color images that accurately represent the full dynamic range of astronomical sources is challenging. In response, Gnuastro v0.22 introduces the program 'astscript-color-faint-gray', which is extensively documented in the Gnuastro manual. It employs a non-linear transformation to assign an 8-bit RGB (Red-Green-Blue) value to brighter pixels, while the fainter ones are shown in an inverse grayscale. This approach enables the simultaneous visualization of low surface brightness features within the same image. This research note is reproducible with Maneage, on the Git commit 48f5408. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_03814 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Gnuastro: visualizing the full dynamic range in color images Infante-Sainz, Raúl Akhlaghi, Mohammad Instrumentation and Methods for Astrophysics Astrophysics of Galaxies Computer Vision and Pattern Recognition Color plays a crucial role in the visualization, interpretation, and analysis of multi-wavelength astronomical images. However, generating color images that accurately represent the full dynamic range of astronomical sources is challenging. In response, Gnuastro v0.22 introduces the program 'astscript-color-faint-gray', which is extensively documented in the Gnuastro manual. It employs a non-linear transformation to assign an 8-bit RGB (Red-Green-Blue) value to brighter pixels, while the fainter ones are shown in an inverse grayscale. This approach enables the simultaneous visualization of low surface brightness features within the same image. This research note is reproducible with Maneage, on the Git commit 48f5408. |
| title | Gnuastro: visualizing the full dynamic range in color images |
| topic | Instrumentation and Methods for Astrophysics Astrophysics of Galaxies Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2401.03814 |