contrastmaster settings in detail

ContrastMaster specific discussions
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HaraldHeim
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Re: contrastmaster settings in detail

Postby HaraldHeim » Mon Feb 02, 2009 2:13 am


MyronGochnauer
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Say what?

Postby MyronGochnauer » Sun Sep 20, 2009 3:17 pm

I appreciate the importance of not being over-technical about the settings.

ContrastMaster uses three central ideas to organize its effects: 1) Dynamic contrast; 2) Adaptive contrast; and 3) Local contrast.

Of these three, only the third has any helpfully intuitive meaning for most photographers. Whether we are film or digital photographers, we can easily understand how "overall contrast" is different from "local contrast".

But "dynamic" and "adaptive" suggest no specifically photographic meaning or use, even though they are common words. What the devil makes a contrast adjustment "dynamic" or "adaptive" as opposed to anything else?

ContrastMaster desperately needs a clear description of what these two contrast changes are, expressed in a way that clearly links what they do to the name they have.

If I want to change the contrast within small areas --- i.e. "locally" --- without changing the overall contrast --- the overall span of the histogram --- I know what to do: choose to modify "Local Contrast".

If I want to... [do what?]... I choose the "Dynamic Contrast" tab.

If I want to... [do what?]... I choose the "Adaptive Contrast" tab.

I invoke a PhotoShop plugin because I think my image can be improved in a particular way: less noise, better color balance or saturation, more or less sharpness, more open shadows, etc. I don't just start experimenting with everything I have in my plugins folder. So, what "needs" would get me to try ContrastMaster "Dynamic contrast" or "Adaptive contrast"?

HaraldHeim
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Postby HaraldHeim » Wed Sep 23, 2009 6:31 pm

All three effects produce similar results, but would it be better to call them Local Contrast 1, Local Contrast 2 and Local Contrast 3?

The first two effects (Dynamic and Adaptive) are effects that are not found anywhere else this way, so it no surprise that you do not know them. So try them and see if you can make any use of them.

All three effects work similar for some images and very different for other images. It is also a question of taste if you like one more than the other.

As I said you would use all three effects for improving local contrast. So just try them on a few images and see which one you like best. Then use that one in future if you do not like to experiment a lot.

When updating the manual again I will try to provide some test images that demonstrate the differences between the three main effect. I hope that will help.


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