I can't say as I ever use it, but this will help
There will be no difference between the two as they both target the same properties.
Hah! I just gave you the same link you used. I really must read the questions more carefully.
may i know do you create a saturation mask?
If you use L*A*B* color, you can control the saturation though the curves adjustment layer, as the brighter and darker the tones are from 50% gray in the A and B channels denotes how saturated the color is. You can create a saturation maske by makeing a duplicate copy of your image and converting it to L*A*B*. Then go back to your original document and create 4 new layers filled with 50% gray. On each of the layers, use apply image pointed to your L*A*B* copy and set the blending mode to lighten. then for each layer change do the apply image set to A, A invert, B, And B invert. Place a curves adjustment layer clipped to each layer with the input value set to 127, so that the 50% gay is now black. Set all the pixel layers to screen mode. Above all of them put a levels adjustment layer and click auto, to increase the whites to the maximum.
Saturation mask created from L*A*B* document.
does somebody use the low Frequency to create a saturation mask?
i tried to reproduce your skill
1) duplicate my image and coverted in lab
2) back to my original image in RGB
3) i create 4 layer 18% gray , blend mode normal
now on layer 1 apply
now my laywer are so...->
4) add a curve clippet on each layer ,input set 127
and set all the 4 to screen
5) a level adjusament set to auto
but my image is in color not like yours
whad do i miss?
thanks a lot
The very bottom layer (not the background layer) leave at normal blend mode).
Another easier method, with slightly different results, would be to take your image, duplicate the background layer, desaturate that layer, then set the blend mode to difference. Place b&w adjustment layer on top, then a levels adjustment layer to adjust the brightness of the final result.
Or you could use two B&W adjustment layers rather than the dupe pixel layer. Set the bottom adjustment layer to difference and the top to Normal blend modes. That was you could adjust the results using the bottom adjustment layer's sliders.
the first method is amazing really
would be very cool have an action
in the second screenshot , i did notice the mask will contain less information then the first method
do you use cs6 or cc?
I use CC but I also have CS6.
Since the second method uses difference, it is subject to how the dupe layer is converted to grayscale. The L*A*B* method relies solely on the intensity of the colors.
do you know the difference between saturation mask and vibrance mask?
i asked at the first
I would imagine the vibrance mask is based of the formula for using the vibrance adjustment layer. I haven't thought about how to create that, but it may be simular to how I did the saturation mask using the difference method.
Here's a script I just wrote automating the makeing of the saturation maske:
Edited: I just tried making a vibrance mask as mentioned above:
dupe the bg layer twice.
On the lower dupe layer, add a clipped vibrance adj layer and set it to the max setting.
On the upper dupe layer, set blend mode to difference and add another clipped vibrance adj layer and set it to the min setting.
add a b&w adjustment layer and a levels layer above that to adjust the brightness
If I understand the description correctly, the Vibrance adjustment affects the saturation of the image in a selective way, acting on the less saturated parts of the image more strongly than on the more staurated ones. I take this to mean that the Vibrance adjustment is a Saturation adjustment applied through a saturation mask (the type of masked described earlier in this thread). So, I do not think there is a "Vibrance mask" per se. Please correct me if I'm wrong.
I think you're more or less correct, Rafel.
Search FOR "TONY KUYPER". He has a marvelous set of actions, with tutorials. For masking these are the best. They come with some wonderful tutorials.
That's the trouble with using a b&w adjustment layer: There are so many ways to get a "true" representation of what the colors are. There is a whole science on b&w conversion, and each method will affect the outcome of creating a saturaton mask.
As far as actions vs script. I'm not sure which will run faster - if there is a difference. Most likely the code I generated using scriptListner, is the same code that actions generate. I just like scripts in that it's easier to make them work with any file, especially when you are creating duplicate documents and new layers. Lots of people combine actions and scripts, but I also like to keep everything in one place (file), so that it's easier to transfer to a different version of PS.