Convert FITS to TIFF

Understanding FITS and TIFF file formats

FITS (Flexible Image Transport System) is a digital file format widely used in astronomy for storing, transmitting, and processing scientific and image data. It supports multi-dimensional arrays and metadata, making it ideal for astronomical images and data sets.

TIFF (Tagged Image File Format) is a versatile raster image format commonly used for storing high-quality graphics, images, and scanned documents. It supports lossless compression and is compatible with many image editing and viewing applications.

Why convert FITS to TIFF?

Converting FITS files to TIFF format allows users to view, edit, and share astronomical images using standard image software. TIFF files are more accessible for presentations, publications, and general image processing outside specialized astronomy tools.

Best software for FITS to TIFF conversion

FITS Liberator is a popular, free tool designed specifically for converting FITS files to common image formats like TIFF. It is available for Windows and macOS and is widely used by astronomers and astrophotographers.

Another excellent option is ImageJ, an open-source image processing program that supports FITS files through plugins and can export images as TIFF.

How to convert FITS to TIFF using FITS Liberator

1. Download and install FITS Liberator from the official website.
2. Open the program and go to File → Open to select your FITS file.
3. Adjust the image settings as needed (stretch, scaling, etc.).
4. Once satisfied, go to File → Save As and choose TIFF as the output format.
5. Click Save to complete the conversion.

Alternative: Using ImageJ for conversion

1. Install ImageJ and the FITS plugin if not already included.
2. Open ImageJ and select File → Open to load your FITS file.
3. Process or adjust the image as needed.
4. Go to File → Save As → TIFF to export the image in TIFF format.

Conclusion

Converting FITS files to TIFF format is straightforward with tools like FITS Liberator and ImageJ. This process makes astronomical images more accessible for editing, sharing, and publication.