During this month, the James Webb Space Telescope, a remarkable achievement for NASA, celebrated its first year in orbit. The visual records captured by this technological marvel are true relics, providing rare and intriguing glimpses of the cosmos.
However, the allure of these stunning images is amplified by the peculiarity of your process broadcast, as they are not sent directly from the customer in vivid color. that is, the NASA need to secure the final touch!
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All photos go through an intense editing process before they can be aired. Does this mean that images are overrated? Quite the opposite!
(Image: NASA/ESA/CSA/STScI)
NASA edits photos of James Webb, but guarantees originality
One peculiarity of this process is that the James Webb's sensors are tuned to capture images in deep grayscale.
As a result, many fascinating details remain unclear, defying comprehension. Even those elements that can be visualized tend to turn out to be enigmatic.
This is where the work of professional duo Joe DePasquale and Alyssa Pagan comes in, whose collaboration plays a crucial role in revealing cosmic wonders: distant galaxies, intricate areas of star formation, and much more. more.
The process of turning James Webb's images into understandable visuals starts with training by downloading the raw data.
To manipulate these files, professionals resort to specialized software. Alyssa Pagan uses FITS Liberator, while Joe DePasquale prefers PixInsight.
The subsequent step involves manipulating the pixels, performing a process known as “stretching”. This involves extending midtone values, allowing details previously hidden in darkness to become visible to observation.
These data are acquired in the form of FITS (Flexible Image Transport System) files, a digital format widely used in astronomy.
Scientists' excitement is visible when they have the opportunity to visualize their data in color for the first time, as shared by Alyssa Pagan.
This approach to adding color to images often gives researchers a new perspective, allowing them to explore data in previously unexplored ways.
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