Video track luminosity blend mode weirdness

Applied sharpening to a video track and set the blend mode to luminosity (so that I could put a blurry multiplied layer in between)
Now wherever the luminosity layer finds an overexposed highlight it renders as black. If I turn down the opacity of luminoisty layer it stays black, if I switch it off it dissappears. !

Hi Chris,
Thanks very much for your straightforward and helpful answer. So, it would appear that my simplistic understanding of the Hue blend mode as 'replacing' the hue of the underlying layer(s) is incorrect. Would a fair rendering of what the Hue blend mode actually does be as follows?
"The Hue blend mode will perform a direct replacement of the hue in the underlying layer(s). The brightness and saturation of the underlying layer(s) will not be affected *unless* the resultant hue, saturation, and brightness 3-tuple would result in an illegal HSL combination, in which case the saturation and brightness of the resultant pixels will be altered to bring the HSL values into compliance."
Also, is there a way for the Info panel to display HSL values?
Thanks again,
Matt

Similar Messages

Luminosity/Color blend modes - what do they really do?

I know what the documentation says that they do, but it doesn't appear to be the truth. For example, if I take my image and overlay it with a 50% gray layer set to Luminosity mode, I would expect to see the hue and saturation of my image, with the luminosity of every pixel set to 50%, but that isn't what actually happens.
Have I misunderstood what these modes are supposed to do? Can anyone enlighten me?
Thanks in advance,
Aaron

Aaron,
The weighting factors for R G and B were determined long ago via subjective responses in tests on thousands of people. there have since been other recommended weights. No set of weights is valid over the whole range of color values. In an imperfect world you compromise. Nowhere is it explicitly stated, but Photoshop has stuck with the older weights. You can verify that for yourself using the Info palette. Other applications may use other luminosity definitions. Also in Photoshop, Brightness is taken to be the highest of the R G and B color values. I think you were equating brightness and luminosity. They are decidedly different parameters. Nor is Luminosity the same as the L parameter in LAB (most often called "Lightness" but often "Luminance"). You won't find that LAB Lightness is preserved by the Luminosity blend and certainly not Brightness. Using the Info palette, you can also see that the Luminosity blend mode retains the hue and saturation of the base while adopting the luminosity of the blend color.

Problems with blending modes

Hi,
I have a layer with a solid color (212º,93,78) on top of which I have another layer with a solid color (205º,100,74). Call this second layer the blend layer. I then choose for it a blending mode of Color, and the resulting color in the top layer is (205º,100, 74). If instead I choose the luminosity blending mode, the resulting color in the top layer is (212º,93,78).
---all these are HSB coordinates.
According to the documentation. color and luminosity blending modes should behave differently:
Color
Creates a result color with the luminance of the base color and the hue and saturation of the blend color. This preserves the gray levels in the image and is useful for coloring monochrome images and for tinting color images.
------ the luminance of the base color is 78 (at least the brightness anyway - I know of no method to get the luminance)
Luminosity
Creates a result color with the hue and saturation of the base color and the luminance of the blend color. This mode creates the inverse effect of Color mode.
------- in this case everything is equal, which seems to me is not right.
Some light?
Juan Dent

Generally speaking, Photoshop works fine with Windows 8 but the display drivers aren't all up to the task yet, and Photoshop uses the GPU for a lot of stuff.
What video card do you have?
You might find you can go into Edit - Preferences - Performance in Photoshop and disable the usage of GPU (the setting is called [ ] Use Graphics Processor in Photoshop CS6, and [ ] Enable OpenGL Drawing in earlier versions). It's also possible that you might find things to work better if you leve the GPU enabled but change the advanced mode for it to a lower setting, such as Basic.
In a general answer to your question, yes, I imagine there will be updates through Windows Update and from Adobe that will correct the problems. You may be able to accelerate the fix by visiting the web site of the maker of your video card and downloading their recent driver release (though I caution against this with ATI drivers right now - their latest aren't really too good).
-Noel

BUG: Channel-based blend modes in FW CS5 & CS6

I've observed problems with some of the blend modes in Fireworks CS5 and CS6. Several are definitely broken—most likely a by-product of changes introduced in CS5, which attempted to match some of Photoshop's blend mode behaviors (for Hue, Saturation, Color and Luminosity).
http://www.adobe.com/devnet/logged_in/bbowman_fwcs5.html
The broken blend modes are the channel-based blend modes: Red, Green, and Blue. These have no counterpart in Photoshop, and yet no longer function properly.
To illustrate the problem, I've created a simple test graphic: three white squares, three black squares, three bitmaps, and three colored squares (red, green, and blue).
Now I'll add a black background to the canvas and apply a different channel-based blend mode—Red, Green, and Blue—to each object in its respective group. Here's the correct result, in Fireworks 8:
As you can see, each object appears to be the same color as its applied blend mode. A white rectangle with a Red blend mode becomes red, with a Green blend mode becomes green, and with a Blue blend mode becomes blue.
The way it works is this: The composite image adopts the selected channel of the object and combines it with the remaining channels of the canvas (or objects) below. For example, consider the white rectangle with a Red blend mode. The rectangle's Red channel (R:255) should be combined with the remaining channels of the canvas below (G:0,B:0) to create a composite with the appearance of red (R:255,G:0,B:0).
Now here's the same graphic as it appears in both Fireworks CS5 and CS6:
As you can see, there's no sense to this result. The Red blend mode produces Green, the Green blend mode produces Red, and the Blue blend mode produces invisibility. I simply cannot explain the outcome. These blend modes have been rendered useless and unintelligible in CS5 and CS6.
The reason for my concern here is that, just over a year ago, I wrote a series of command scripts based on these blend modes as they existed Fireworks 8. Without these blend modes, my scripts cannot function.
Assuming there are updates forthcoming for Fireworks CS6, I'm hoping there's a chance that this might still be fixed (if not for CS5, as well). Here's the bug report I've submitted regarding this issue:
Product name: Fireworks
Product Version: 11.1.0.205 (CS5.1)/12.0.0.236 (CS6)
Product Language: English
Your operating system: OS 10.6.8
******BUG******
Concise problem statement: Channel-based blend modes (Red, Green, and Blue) are broken in Fireworks CS6 and CS5.
Steps to reproduce bug:
1. Set canvas to black.
2. Draw 3 white rectangles of any size.
3. Set blend mode of 1st rectangle to Red, 2nd rectangle to Green, 3rd rectangle to Blue.
Results: 1st rectangle appears Green (instead of Red). 2nd rectangle appears Red (instead of Green). 3rd rectangle becomes invisible (instead of Blue).
Expected results: Each rectangle should appear to be the same color as its applied blend mode, as the composite adopts the selected channel of the object and combines it with the remaining channels of the canvas (or objects) below.
In the preceding example, the black canvas contains no channel information (R:0,G:0,B:0) while the white rectangles contain information in all 3 channels (R:255,G:255,B:255). When a Red blend mode is applied to a white rectangle, the object's Red channel (R:255) should be combined with the remaining channels of the canvas below (G:0,B:0) to create a composite with the appearance of red (R:255,G:0,B:0).
Most likely, this bug was introduced in CS5, which included modifications to Hue, Saturation, Color and Luminosity blend modes (to match Photoshop). For comparison, proper RGB blend mode behavior was observed in Fireworks 8.
For more information about this bug, please see the following post: http://forums.adobe.com/thread/1209542

I haven't noticed changes in the way the blend modes work.
It's possible you have a specific problem on your system, or you have an image with a color space that uses a different gamma than you're used to working in. In the latter case, the math could be the same but if the representation of the colors is changed (which is what the color profile defines) you could get a radically different looking result.
Maybe it would be useful to post some screen grabs, and ideally it would be great if you could post a copy of a PSD file that demonstrates the problem (i.e., looks different when opened in an older version of Photoshop than in Photoshop CS6).
EDIT: Looks like I was too late in answering; I was distracted after typing and before posting.
-Noel

Blending mode in a precomp

Main Comp: Has a paper background, and a nested comp
Nested Comp: has a video, and a couple flourishes.
I want the flourishes to have a blending mode that blends with the paper.
When i place the nested comp into the main comp the blend does not take place.
THANKS

I want the flourishes to have a blending mode that blends with the paper.
Enable the continuously rasterize/ collapse transformations switch. Passing through blending modes is one of its many functions, though people usually forget about it. However, it still is dependent on a certain logical order - if your flourishes are above the footage and do not extend beyond the boundaries of the video, the "Normal" blending mode of the footage will override pretty much the rest and the result be no different than with the CR/CT switch off...
Mylenium

Blend mode vs streaming video - how to?

Helo.
Does anyone know hot to apply blend mode (SCREEN) to streaming video (flv with alpha channel) ?
I will appreciate any ideas?
PS greetings to 'kglad' and 'Ned Murphy'

use an flvplayback component and apply a blendMode to it.

Photoshop Help Video - Can't Locate Katrin Eismann Blending Modes Video

I bookmarked a Katrin Eismann video on blending modes on May 7, 2010. I am trying to locate that video now, so far without success.
Here's the former link: http://www.adobe.com/designcenter/video_workshop/?id=vid0012
As I recall, she showed a great example of how to isolate just a portion of a night time scene. As best I recall, the trees were colorful while everything else was black and white.
I have been hunting for a while without success. I believe it used to be associated with the help file. In fact it still is. If you search on Adobe's help for "blending modes" your first link is likely:
Photoshop Help | Blending modes
And as you work your way though the discussion, you find this:
These examples show the result of painting part of the image’s face using each blending mode.
For a video on blending modes, see www.adobe.com/go/vid0012.
Does anyone know how I can locate this video?

This same non-existent link is still listed on various Adobe web pages, but alas, the page with the video no longer exists. This is obviously an error on the part of the (huge) Adobe website.
The best thing to do is to submit a bug report, and hope they fix it:
Adobe - Feature Request/Bug Report Form

Hue Blend Mode Confusion

Hello,
In reading about the Hue blend mode, I have come to understand (perhaps erroneously) that given two layers (T)op and (B)ottom, that if the Blend Mode of T is set to Hue, then the hue information in T will be blended with the saturation and luminosity in B, which essentially means that the hue information in B is replaced by the hue information in T. However, in running some experiments, I've noticed that when dealing with a very simple document comprised of two layers only, that setting the Blend Mode to Hue also changes the saturation and brightness.
Here are the steps to duplicate the observed phenomena using two regular layers:
Create a new blank document.
Fill with the color that corresponds to the HSB values (0, 70, 50).
Add a new layer above the existing layer (blend mode Normal).
Fill the topmost layer with the color that corresponds to the HSB values (230, 70, 50).
Using the Info panel, the HSB values for the document should read as (230, 70, 50).
Change the Blend Mode of the topmost layer to Hue.
Using the Info panel, the HSB values for the document should read as (230, 70, 50), but instead read as (230, 66, 53).
And here are the steps to duplicate the observed phenomena using a regular layer and an adjustment layer:
Create a new blank document.
Fill with the color that corresponds to the HSB values (0, 70, 50).
Add a Hue/Saturation adjustment layer (blend mode Normal).
Adjust the Hue value in the Properties panel for the Hue/Saturation adjustment layer to be -130.
Using the Info panel, the HSB values for the document should read as (230, 70, 50).
Change the Blend Mode for the Hue/Saturation layer to be Hue.
Using the Info panel, the HSB values for the document should read as (230, 70, 50), but instead read as (230, 66, 53).
The results in both (for me) are identical. Am I misunderstanding the Hue blend mode?
Thanks,
Matt
Photoshop Info:     13.0.1 x64 Extended
OS:                        Windows 7 64-bit
CPU:                      Dual Xeon E5440
RAM:                     16 GB
Video:                    Nvidia GeForce GTX-580

Hi Chris,
Thanks very much for your straightforward and helpful answer. So, it would appear that my simplistic understanding of the Hue blend mode as 'replacing' the hue of the underlying layer(s) is incorrect. Would a fair rendering of what the Hue blend mode actually does be as follows?
"The Hue blend mode will perform a direct replacement of the hue in the underlying layer(s). The brightness and saturation of the underlying layer(s) will not be affected *unless* the resultant hue, saturation, and brightness 3-tuple would result in an illegal HSL combination, in which case the saturation and brightness of the resultant pixels will be altered to bring the HSL values into compliance."
Also, is there a way for the Info panel to display HSL values?
Thanks again,
Matt

Blending modes bug

I want to report a bug in the program Premiere Pro CC 2014. it first appeared in version CC.
blending modes bug
Compound
Arithmetic
Composite
each time one and the same
Describe a situation in which there is this bug
I apply a preset, any of these effects, or similar so that the clip is mixed with himself blending mode screen. so I very gently increases the brightness of the image.
and sometimes there is a problem. clip is not blended with himself simultaneously. but with some time offset. it turns out that the image becomes lighter, but doubles, blended two different frame.
strict laws, I did not reveal.
but most often the bug occurs when the cut clip already applied effect. or when the effect is applied to the clips that are not on the first track. or when the effect is applied to multiple clips at once.
I found some solution, but it is not very convenient.
if you go to the drop down list with the names of the tracks and re-select the same track, the bug disappears.
for example, we had chosen the "video 1", we once again choose "Video 1" and everything is current, as it should be.
sorry for my english, I am Ukrainian.
and sorry for wedding too)))

Here is another example. guys who have still a problem?

Blending Modes-where are blending modes Darken and Lighten?

I understand that 2 new blending modes should come with PS CS3, darken and lighten. However, these do not appear in my blending mode panel. Can anyone tell me why?

Charles and Buko, You know, sometimes a guy just doesn't function correctly and I think this is one of those times. guys, with red face, and his tail stuck between his a** I am afraid i have wasted everyone's time here. Charles you are right on dude, there they are, the two evil ones, missing in action because I was looking for them in the wrong place. I'd like to place blame on the CS3 video workshop series which showed them under the luminosity, but that would be lame. I am at fault.
But it is nice to know that so many are so ready to help.
I apologize to everyone and thanks for all your help.

Blend Mode Options

Hi. I've recently downloaded Photoshop CS6 trial version and i've tried to add a flare to a transparent background image and turn the blend option to colour dodge or screen but when i do so the black bg does no go. It stays there but i have seen in many other exampls video and i've even done it myself at school computers and at my home computer once but this time it just wont do it?
Example:
I open a signature for a forum i made with a transparent background.
I import a flare. It has a black bg.
Turn blend mode option to screen and the flare goes above the text but the black bg is still actually there.
Help please?

It's never worked as you think. It has to do with how the various blending modes mix layers over pixels that have transparency, and that hasn't changed in recent history.
But that's neither here nor there. In order to save a PNG that has the ability to combine with page data below it, you're going to have to prepare your flare to use Normal blending, and use layer transparency to combine it.
One way is to use the luminosity of the flare itself as a layer mask, which will have the effect of eliminating the black surroundings. However, that will end up dark and leave some black in the pixels that do show, and that could conceivably combine in an unnatural looking way with light surroundings (i.e., darkening them). You'll want to use such a PNG over the top of a dark background. You can mitigate this some by doing things to the pixels of the flare layer while leaving the mask alone, such as pulling up the curves and increasing color saturation.
-Noel

Blending mode and choke issues

Im doing a very simple tutorial and I have encountered a few problems which I have been unaware of before.
Here is the link to the tut - http://ae.tutsplus.com/tutorials/motion-graphics/use-a-jello-jiggly-expression-quick-tip/
In the beginning he duplicates the text and changes the blending mode of the top layer to multiply.   First problem I encountered is my text barely changes colour/appearance in any way when doing this.
Next he applies a Matte>simple choker and cranks it to 40.   Second problem when I do this I see no choke because the multiply hasnt made enough diffeence to notice. Also I soloed the duplicate layer and cranked the choker up but I cant take it any higher than about 8 or it just starts disappearing.
I tried the same thing with a shape and that seemed to be even more problematic. I used a rectangle and duplicated it. When i choked it the duplicate gets round corners and stretches horizontally. WHats going on here?
Am I doing something wrong here? I am following the video instructions precisely.   Thank you.

Matte Choker will make rounded corners because that's exactly what it is designed to do. If you applied simple choker to a text layer and a very small value change makes the text disappear then the text isn't thick enough. Try a fatter font. As Mylenium said, blend modes based on the value of pixels depend on the color. The max value of red is the max value of red so if you multiply it by the max value of red you still get the max value of red which equals the max value of red, therefore there is no change.
This won't work:
This will but barely:
Setting the bottom layer to something lighter with values like this works better because there is some room to do the math and it is in more than one channel:
But you can see that there's very little edge available and the matte choker is rounding the corners. It does this because all matte chokers work by blurring the edge of the alpha and then adjusting the level or the curve of the blur. You can build your own matte choker simply by applying blur to a layer, adjusting the alpha levels using that layer as an Alpha track matte for your text. See how I've crushed the alpha levels toward white? That is what makes the matte shrink.
I hope this helps you understand the process better.

Blending Mode Issues

Hi,
I think my Adobe Premiere Pro CS6 may have some glitches in it with this problem. I imported a PNG file with a black background above my video footage. I tried putting the blending mode to screen and nothing happened. I also tried a variety of other things, but nothing affected the file. I have never had a problem like this before with Adobe Premiere.
If anyone can help me, I'd appreciate it!
Thanks, Gabrielle
[Post was branched to a new thread and the title updated.]
Message was edited by: Jim Simon

Blending should works as you discribed.
If Premiere is acting weird open Premiere while holding down shift+alt.
Might want to clear your media cache database to.

Blending Mode Errors

So here is a video I am doing for a client and running into a huge problem I only encountered on Premiere CC (along with 100 others since upgrading...)
Check out this render I did of the project and goto about 1:22 you will see what I am talking about...
https://www.youtube.com/watch?v=ERUhN2Mawg4
You can probably tell I overlaid the candles on top and used the screen blend mode... This also happens later on in the video as well (at about 3:05). Can anyone please tell me how to fix it?! This video was to be done by tonight. Weird part is, it does not show in the program when previewing only during rendering it.
Thanks so much
--Matt
[Please choose only a short description for the thread title.]
Message was edited by: Jim Simon

Hopefully these screenshots help you help me...! Thanks Fuzzy

Applying effects to multiple clips or an entire sequence on a separate video track

I'm looking for an easy way to apply effects on a separate video track. In AVID I would just drag and drop the effect preset onto a blank layer. Or if I wanted the clip to affect just a few clips, I would add two edits (similar to razor blade) on a separate video track and drag the effect preset between those edit points. Is there a way to do this in Premiere Pro? Running CS 5.0.4. Thanks for the help!

Well, depending on what you want to do, you might actually be able to use a clip instance of one sort or another.
One option is Transparent Video (File > New > Transparent Video); by itself, Trans. Video doesn't do anything, but some effects can be applied to it and will generate an output. This doesn't work with all effects, so you'll have to experiment. Check here for more: Create a transparent video clip
Another option would be to use a Color Matte (File > New > Color Matte) or Black Video (File > New > Black Video) clip. These do have an effect by themselves, so you could apply any effect you wanted to them, and then possibly use a Blending Mode to apply it. Black Video is common for this purpose, with something like the Add mode. Again, not perfect, but it will depend on the effect you're trying to achieve.
Unfortunately, we don't have anything like AE's adjustment layers in Premiere Pro. That would solve your problem, quickly.

Video track luminosity blend mode weirdness

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