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Who has experience with Lobster Software?

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  #1  
Old 01-19-2009, 10:48 AM
girlsfather girlsfather is offline
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Who has experience with Lobster Software?

Hi,

there is a problem I want to solve: The levels do not really work proper in Photoshop. What I mean is the change in hue and saturation - regardless if blending mode is luminosity or normal. (Only exception: the picture is BW ;-))

Does anybody of the professionals here have experience with Lobster from freegamma.com (or similar software or other resources) to separate luminosity- and colourinformation of rgb psd-files.

Another question:
I wonder if there is another, maybe better, way to get the same result:
A luminosity-layer to fix the tones and a seperate colour-layer-set to work on hue and saturation.

I don´t want to convert to Lab....all has to be done in RGB...

So anybody who has ideas about that is welcome to share his knowledge ;-)))

Michael
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  #2  
Old 01-20-2009, 04:05 AM
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Stroker Stroker is offline
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Re: Who has experience with Lobster Software?

I could probably show you several uniques of doing that. It really depends on how you want to mix your colour spaces and how you want various things to be represented or manifested.

Do you want to use the Luminosity blending mode, or are you comfortable with a different lum reference?

Do you want hue and sat as hue and sat together or in seperate layers? Or you do you want hue and sat information in seperate RGB layers?

Just to give you an idea, here is a fun one I did some time ago on an intriguing request: Selective Colour Hue Masks.

You can deconstruct an image in so many different ways, each with pros and cons, once you know your blending modes and ChOps.
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Old 01-20-2009, 04:50 AM
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Stroker Stroker is offline
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Re: Who has experience with Lobster Software?

I feel a rampage coming on. If someone provides a sample image with a decent range of hues, I'll show the basics of doing these kinds of things.

Last edited by Stroker; 01-20-2009 at 05:01 AM.
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Old 01-20-2009, 05:38 AM
girlsfather girlsfather is offline
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Re: Who has experience with Lobster Software?

Hi Stroker,

many thanks for your reply!!!
There seem to be few people involved in that colour-theoretical part of photoshop ;-)))

I do not want to work with the lacks of levels CS3 any longer. (changing not only luminosity but also hue and saturation - regardless if you use normal or luminosity as blending mode.)
I found out how to create a real luminosity layer and one chromacity layer.
- thanks to a tutorial at photokaboom.com -
Both layers together build exactly the same picture as the original.
So far so good:
I now can work with this luminosity layer to fix the tones.

I now want to divide the chromacity layer in three parts: red, green, blue.
I did not find the solution for that so far. Tried picture > calculations ... but did not achieve that.

The screenshot of the layers may show what I have so far.
Attached Images
File Type: jpg P1000871_100k.jpg (96.1 KB, 21 views)
File Type: jpg luminosity.jpg (85.1 KB, 23 views)
File Type: jpg colour.jpg (25.2 KB, 23 views)
File Type: jpg screenshot.jpg (93.1 KB, 34 views)
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  #5  
Old 01-20-2009, 06:32 AM
girlsfather girlsfather is offline
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Re: Who has experience with Lobster Software?

o.k. found the solution:

took the three channels red green blue to create layers.
(only the layer with colour information active)
- make masklayers out of the channels
- solid colour layers in multiply mode in colour of the according channel
- merge each masklayer with the according solidcolour layer

now arrange the following way:
- red above in screen mode
- green in the middle in screen mode
- blue at bottom in normal mode

these three layers together are the same as the colour layer.
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  #6  
Old 01-21-2009, 12:26 AM
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Stroker Stroker is offline
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Re: Who has experience with Lobster Software?

Glad you figured it out to your satisfaction. Looks like I've been spared a rampage.

Just remember that there are lots of ways of doing this, each with pros and cons. You've already figured out one method. Can you figure out more that allow for different kinds of tweakage?

Keep that in the back of your mind and pull it out to play with on a rainy day or something.
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  #7  
Old 06-08-2011, 07:51 AM
ISO ISO is offline
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Re: Who has experience with Lobster Software?

Quote:
Originally Posted by girlsfather View Post
o.k. found the solution:

took the three channels red green blue to create layers.
(only the layer with colour information active)
- make masklayers out of the channels
- solid colour layers in multiply mode in colour of the according channel
- merge each masklayer with the according solidcolour layer

now arrange the following way:
- red above in screen mode
- green in the middle in screen mode
- blue at bottom in normal mode

these three layers together are the same as the colour layer.
Could you pl explain how to make make masklayers out of the channels?

And is it working in the same fashion of Lobster droplet from free gamma?
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