Unleash the Power of Curves Transformation: Literally The Most Powerful Editing Tool You Have

The Curves Transformation tool is often misunderstood and underutilized, but it is by far the most powerful tool in your toolbox. Get a grasp on the theory and you can use curves in lieu of many masks, emulate SHO and HOO palettes, and refine your images' color, contrast, saturation and luminance to remarkable precision. Let's examine three case studies and discover how far we can push this amazing tool!

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#astronomy #astrophotography #space #nebula #stars #pixinsight #siril

[nikaxstrophotography]

The stars look funky and unreal, the nebula itself is excellent

[markalot]

Very nice explanation of the curves tool. Love the results, love the explanations. I've used large overlap on star x which should not make a difference but seems to have less artifacts. Different algo maybe? This video popped up in my feed, I assumed it was recent, just noticed it was 7 months ago. :)

[protonx]

ive freshly bump into your channel, newbie here in astrophotography... happy new year and thanks for your sharing your work.

[jims]

Great video. Using curves properly is still a work in process for me, but this video is helping alot.

[Tony-Elliott]

Another excellent tutorial thanks for taking the time to make these video

[richardshagam]

Your videos are great. Before latching on to them, I had been spending what I now consider to be a waste of time working with that supposedly new hot tool, the Generalized Hyperbolic Stretch to bring out contrast within various brightness levels. But what is GHS?--Just a mathematical formalism trying to accomplish what you've been showing can be done with the curves tool empirically.

[grahamprescott]

Is this function in Siril? Ive have a go in GIMP under "curves" where you also see the histogram. Still not sure ive mastered this. Currently trying to bring up the shadows in the heart nebula. From what ive seen i need to drag top quarter up? And lower quarter down?

[magedsyehia]

Just wanted to confirm if you did any gradient removal before processing this image?

[jesuschrist]

I assume this applies to curves in gimp too? Any fellow gimps got suggestions?

[neilhankey]

What is wrong with the stars in these images??? The nebula is sharp but the stars look to big and soft!!! In the bubble image they don't even look focused. Like small donuts? Otherwise a nice tutorial.