Frequency Separation High Frequency behaves weirdly on my APP?

[augustya]

Hi Guys,

I am trying to use the frequency Separation and when I try using the healing brush on the high frequency I get these red kind of strokes,. Can someone please tell me what's going on here ? and why my Brush Strokes are giving this weird red colour?

Attached is the Screen Recording.

 

[smadell]

In the Context Toolbar, change “Current Layer and Below” to “Current Layer”. The red color is a side effect of the Linear Light blend mode.

[walt.farrell]

10 hours ago, smadell said:

The red color is a side effect of the Linear Light blend mode.

I don't see Linear Light being used; can you help me understand where it shows up?

[Murfee]

Hi @walt.farrell It is from the High Pass Frequency separation layer, I think there may be a bug in the layer name updating, if you click on the low frequency layer then back to the High Frequency you will see it

[augustya]

10 hours ago, smadell said:

In the Context Toolbar, change “Current Layer and Below” to “Current Layer”. The red color is a side effect of the Linear Light blend mode.

But when I change the contact Toolbar from Current Layer and Below to Current Layer I am facing another issue which is when. use a healing brush with a zero hardness and for that matter even if I increase the hardness to even 100% I do not see anything happening? Any Changes happening ?

Attached is the video. Now what is the problem ?

 

[smadell]

@augustya - What are you trying to adjust? The area of the High Frequency layer in which you are using the Healing Brush has very little detail (mostly pores, etc). That little red-brown imperfection on her left cheek is probably something that should be smoothed out on the Low Frequency layer, since it is mostly color and tone, not "high pass" detail. You are simply painting on the wrong layer.

[augustya]

45 minutes ago, smadell said:

@augustya - What are you trying to adjust? The area of the High Frequency layer in which you are using the Healing Brush has very little detail (mostly pores, etc). That little red-brown imperfection on her left cheek is probably something that should be smoothed out on the Low Frequency layer, since it is mostly color and tone, not "high pass" detail. You are simply painting on the wrong layer.

If you have a look at my second screen recording Video in that Video I am trying to reduce, work upon the eye bags the subject has. Forget the Video that I posted yesterday that was just a sample video to show what is happening wrong here.

The Video that I have posted today that is the current project. I am working on.and when I use the healing brush on the high frequency layer to reduce it. Nothing happens.

[smadell]

Same issue, @augustya. If you look carefully at your video, you sample from an area of low detail (less prominent pores, etc) and then paint onto a different area with more prominent detail. The coloration does not change, but you’ll see that you have made the small details much less prominent. Once again, what you are calling “eye bags” are what most would call “dark circles under the eyes”. This is still a color and luminance issue, and you need to address them on the LOW Frequency layer.

[augustya]

Just now, smadell said:

Same issue, @augustya. If you look carefully at your video, you sample from an area of low detail (less prominent pores, etc) and then paint onto a different area with more prominent detail. The coloration does not change, but you’ll see that you have made the small details much less prominent. Once again, what you are calling “eye bags” are what most would call “dark circles under the eyes”. This is still a color and luminance issue, and you need to address them on the LOW Frequency layer.

Yes when I move the healing brush on the low frequency it responds and I can see changes but not on high frequency.

But isn't this a texture related issue as eye bags is a mass, asset and not just colour.

So how does one come to know in frequency seperation which layer will respond and which layer to work upon ?

[Ldina]

2 minutes ago, augustya said:

So how does one come to know in frequency seperation which layer will respond and which layer to work upon ?

That's where "isolating layers" can help, as mentioned previously.

[smadell]

1 minute ago, augustya said:

So how does one come to know in frequency seperation which layer will respond and which layer to work upon ?

The same way you manage to get to Carnegie Hall - practice, practice, practice.

Seriously, though, if you are using Frequency Separation for facial retouching then think of the High frequency layer as pores, wrinkles, and other small details where there is high contrast. Everything else is likely going to be on the Low frequency layer - colors, highlights and shadows, etc. Even if there is some dark swelling under your eyes, this is not “detail” (at least in a photograph) but rather color and shadow.

I would also refer you back to the exact same conversation you had with @Ldina earlier this week: 

 

[augustya]

9 minutes ago, Ldina said:

That's where "isolating layers" can help, as mentioned previously.

So if I were to isolate the high frequency layer and then use the healing brush on high frequency are you saying then it will show some changes ?

[Ldina]

14 minutes ago, augustya said:

So if I were to isolate the high frequency layer and then use the healing brush on high frequency are you saying then it will show some changes ?

No...I'm just saying that Isolating a layer will show you what is on 'that layer ONLY'.

In the case of Frequency separation, isolating the Hi Freq layer will show whether there's any detail or not in the area you wish to modify (e.g., bags under the eyes). If there's essentially no detail on the HF layer, then using the healing brush will not have much or any effect whether you are isolating the layer or not. If there's no detail on that layer, then try isolating the Low Frequency layer, where the colors and values live, and you will probably find that layer is where the work needs to be done (as @smadell mentioned).

Once you have determined which layer you need to work on, then you can leave that layer isolated if you wish, or turn off isolation mode and see the entire composite image while working. Your preference. You can even switch back and forth between modes as desired. 

Make sure you have the proper frequency layer selected, and that your clone, healing, inpainting or paint brush are set to this layer only. Then, your chosen tool will only apply changes to that layer, whether the layer is isolated or not. 

[augustya]

10 minutes ago, Ldina said:

No...I'm just saying that Isolating a layer will show you what is on 'that layer ONLY'.

In the case of Frequency separation, isolating the Hi Freq layer will show whether there's any detail or not in the area you wish to modify (e.g., bags under the eyes). If there's essentially no detail on the HF layer, then using the healing brush will not have much or any effect whether you are isolating the layer or not. If there's no detail on that layer, then try isolating the Low Frequency layer, where the colors and values live, and you will probably find that layer is where the work needs to be done (as @smadell mentioned).

Once you have determined which layer you need to work on, then you can leave that layer isolated if you wish, or turn off isolation mode and see the entire composite image while working. Your preference. You can even switch back and forth between modes as desired. 

Make sure you have the proper frequency layer selected, and that your clone, healing, inpainting or paint brush are set to this layer only. Then, your chosen tool will only apply changes to that layer, whether the layer is isolated or not. 

That is a great explanation so two question shere.

If I isolate a layer and if it was supposed to have any details how I'll it looks like ? What will it show ? Will it run black or grey or dark ? How am I able to identify that ok now the layer is showing details what it is supposed to ?

And do I in all circumstances when working on Frequency Seperation always use Current Layer and not Current Layer and below ?

[Ldina]

38 minutes ago, augustya said:

If I isolate a layer and if it was supposed to have any details how I'll it looks like ?

Here's an example. On the left, some tree branches with a lot of detail on the high frequency layer. On the right, clear blue sky with no detail. High Frequency layer is currently isolated, so it is the only layer displayed on the monitor.

 

38 minutes ago, augustya said:

And do I in all circumstances when working on Frequency Seperation always use Current Layer and not Current Layer and below ?

Normally, yes. The whole purpose of Frequency Separation is to have the ability to modify and work on details separately from color and tonality, i.e., one at a time. 

[R C-R]

It is a bit simplistic but you can think of the low frequency content as the stuff that does not change much pixel-to-pixel, so it is kind of like a blurred, smoothed out version of the image; while the high frequency content is the stuff that changes rapidly pixel-to-pixel so it is kind of like a coarser, bumpier, sharpened version of the image.