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Difference layer mask

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  #31  
Old 04-11-2011, 07:35 PM
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Boneappetit Boneappetit is offline
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Re: Difference layer mask

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Originally Posted by julianmarsalis View Post
Bone its not a mode its a mask your creating to just effect midtones with a curve layer lol key pt from Mr Randall is and then ask for a layer curve. Now you can play with adding or detracting density from the midtone area to help create the illusion of more density. Usually this is a darkening move, but it can go the other way too.


Its not a mode its a type of mask you use on a curves layer a difference mask >.>. I have the picture somewhere printed out lol...
Julian: I don't understand why you insist in something that is completely out of context... are you Mr. Randall's lawyer? My question is already answered, Jonas, Natalia, Murray and Flashtones already wrote the correct answer. The confusion comes because of the term "Difference Mask", relax man, it is not the end of the world, at least not yet, that's all. We are all learning here...
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  #32  
Old 04-11-2011, 07:46 PM
julianmarsalis julianmarsalis is offline
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Re: Difference layer mask

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Originally Posted by Boneappetit View Post
Julian: I don't understand why you insist in something that is completely out of context... are you Mr. Randall's lawyer? My question is already answered, Jonas, Natalia, Murray and Flashtones already wrote the correct answer. The confusion comes because of the term "Difference Mask", relax man, it is not the end of the world, at least not yet, that's all. We are all learning here...
lmao dude it doesnt get more relaxed then me it doesn't matter a bit at all I think you take what I am saying wrong so no biggie cool breeze....
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  #33  
Old 04-11-2011, 08:07 PM
Flashtones Flashtones is offline
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Re: Difference layer mask

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Originally Posted by mistermonday View Post
Hi Flashtones, what you have generated is known by me as a midtone mask. It can also be generated by Select>Color Range and select Mid Tones from the pull down menu.
To me a difference mask has always been a mask created to isolate fine differences between two almost identical layers and those differences are more often not in midtones. One example where I use it is to make a very precise selection using a Hue/Sat adj layer. A Hue/Sat adj can actually isolate certain pixels in a manner that can not be achieved with Selective Color or Magic Wand, or other tools. The problem is that Hue/Sat will not allow you to make a selection from the pixels that it is affecting. Setting the layer to Difference Blend mode and making a mask of the difference does the job.
Regards, Murray
Murray, what you describe can certainly be considered a difference mask, I just don't think it's what Mr Randall was describing and that Bone is in quest of. Randall was talking about increasing contrast and dimension via curves through finely controlled luminosity masks, with the difference mask set to target the midtones.

Edit: as I read above it appears that is not what Boneappetit is looking for and I really don't understand the context of the conversation. Oh well...
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  #34  
Old 04-11-2011, 08:10 PM
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Re: Difference layer mask

Misc. note: Difference Blend Mode can also be used with the blur filter and a couple of steps more to boost colors of a flat looking image...
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  #35  
Old 04-11-2011, 08:18 PM
julianmarsalis julianmarsalis is offline
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Re: Difference layer mask

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Originally Posted by Flashtones View Post
Murray, what you describe can certainly be considered a difference mask, I just don't think it's what Mr Randall was describing and that Bone is in quest of. Randall was talking about increasing contrast and dimension via curves through finely controlled luminosity masks, with the difference mask set to target the midtones.

Edit: as I read above it appears that is not what Boneappetit is looking for and I really don't understand the context of the conversation. Oh well...
Ditto flash but what you showed is exactly what I need tho and appears to be exactly what Mr Randall is discussing thanks again Julian
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  #36  
Old 04-11-2011, 08:20 PM
Flashtones Flashtones is offline
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Re: Difference layer mask

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Originally Posted by julianmarsalis View Post
Ditto flesh but what you showed is exactly what I need tho and appears to be exactly what Mr Randall is discussing thanks again Julian
I think so too. If one tries my method vs Color Range > Midtones they'll see exactly the more nuanced mask that he mentions.
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  #37  
Old 04-11-2011, 08:26 PM
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Re: Difference layer mask

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Originally Posted by Flashtones View Post
Murray, what you describe can certainly be considered a difference mask, I just don't think it's what Mr Randall was describing and that Bone is in quest of. Randall was talking about increasing contrast and dimension via curves through finely controlled luminosity masks, with the difference mask set to target the midtones.

Edit: as I read above it appears that is not what Boneappetit is looking for and I really don't understand the context of the conversation. Oh well...
Yes Flash, it is exactly what I was looking for... As I wrote earlier, the confusion comes over the term "Difference Mask", some call it that, that's ok. That feature only comes with After Effects, what some call DM it's a luminosity mask along with a Diff Blend mode... As I told Natalia, the way I see it is that After Effects uses this because it is an animation program, there I can understand the "use of a difference mask", but not in Ps. The important thing here is the result of using this process... and I already have it... I didn't think my question was going to get this complicated, and even more after I got what i wanted, hehe...
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  #38  
Old 04-11-2011, 08:52 PM
Flashtones Flashtones is offline
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Re: Difference layer mask

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Originally Posted by Boneappetit View Post
Yes Flash, it is exactly what I was looking for... As I wrote earlier, the confusion comes over the term "Difference Mask", some call it that, that's ok. That feature only comes with After Effects, what some call DM it's a luminosity mask along with a Diff Blend mode... As I told Natalia, the way I see it is that After Effects uses this because it is an animation program, there I can understand the "use of a difference mask", but not in Ps. The important thing here is the result of using this process... and I already have it... I didn't think my question was going to get this complicated, and even more after I got what i wanted, hehe...
I'm glad it worked out.
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  #39  
Old 04-11-2011, 09:50 PM
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Aladdin Aladdin is offline
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Re: Difference layer mask

I will stick to solving world hunger.

@Boneappetit: Thank you so much.
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  #40  
Old 04-11-2011, 10:18 PM
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Re: Difference layer mask

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Originally Posted by Aladdin View Post
I will stick to solving world hunger.

@Boneappetit: Thank you so much.
No problem mate, that's the good part of all this, we can all learn...
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