In RGB mode, why paste 50% gray in a layer mask actually put K 59% in the mask?
Create a new (small) document in RGB mode, 8-bit, transparent background.
Fill the layer 1, resulting with 50% gray, 100% opacity. The reports = (128,128,128) RGB eyedropper.
Copy the layer to the Clipboard.
Create a new layer 2. Fill it with green #00ff00 (content doesn't really count).
Add a layer mask to the layer 2.
Wear this mask during installation.
Paste the contents of the Clipboard. The pipette noted the content of the mask as K 59%.
I expect 50% gray (or K 50%). Why have I not 59% K?
Additives:
I'm using CS3 on Mac. I didn't get to see if the same thing happens with newer versions of PS.
Apply the layer mask in the layer 2. Excerpt from the transparency in a new layer. The pipette gives the RGB of the
new layer as (106,106,106), with pixel-by-pixel variations plus/minus 1.
Take the difference between this new layer and layer 1; the pipette gives the RGB difference as (22,22,22),
Once again with variations of plus/minus 1.
Paste the contents of the Clipboard into a new layer. The pipette gives this new RGB content
layer as (128,128,128), both without and with a black & white adjustment applied.
Create a new layer, add a layer mask, fill the mask with 50% gray. The pipette gives the content of
the new title (128,128,128) (now as expected) master.
The 50% gray used above is just for simplicity. I am really interested in inserting a complicated RGB
image containing only shades of gray in the layer mask. This example shows that the collage will not
preserve the levels of gray. Indeed, when I replace the first 50% of grey with a black and white gradient.
the differences between the initial gradient and in the mask included roughly quadratic between 0 to 0,
22 128 and 0 to 255.
It is a grayscale image, interpreted according to your work of gray.
Use Gray Gamma 2.2 and you will get 50%.
EDIT: actually I think you could use sGray, who has the accurate sRGB transfer function - which is not strictly a pure gamma. But it wouldn't be right with for example Adobe RGB.
Tags: Photoshop
Similar Questions
-
Why are menus grayed out in trial version? How can I use the effects then?
Why are menus grayed out in trial version? How can I use the effects then?
Every piece of software has a learning curve and its own terminology. After Effects is a tool professional complex, used by lovers of the House to feature filmmakers.
There are a lot of video friendly user very editing software that will do the tasks you mentioned easily. I would suggest Adobe Premiere Elements.
For the record, you cannot apply an effect what in After Effects until you have selected a target layer in the timeline panel. This feature is true for any video editing or compositing software I can think,
-
Paste an image into a layer mask does not work even after several approaches
I can't paste an image into a layer mask. I tried to keep 'option' by clicking on the layer mask (to activate the white), then "Control + V" to paste the image but it still places the image in a new layer. I tried to paste through the Palette layers without success (pasta in a new layer). I tried to use past special from the Edit menu, but the past command is grayed out. Any ideas for why it does not work for me?
I tried to keep 'option' by clicking on the layer mask (to activate the white), then "Control + V" to paste the image
Did you select > all and edit > copy the image you want to put in the mask?
-
My styles in illustrator are grayed out although in RGB mode
I would use the shadow effect in illustrator.
But that - as well as most of the other options style - is grayed out.
In Photoshop, which is managed by put in RGB mode and 8 channel bits, but it does not help in illustrator.
I also tried different fonts because I thought that the effect may be simply not available at this special police but it stayes just in gray.
This preset could I be wrong?
Did you select the text with the pointer tool object?
Or have you used the text tool?
-
Weird bug? Transparent background is black instead of checkered in RGB mode
If I try to do a new RGB document with the content of the value Transparent canvas background is filled with black instead of the motif model. However more in the layers window the small icon of the layer shows as transparent with the checkerboard. In the channels window, it seems too transparent, and if I click on one of the channels that allows to select only one canvas changes from black to the ground. If I click on the RGB layer above the canvas becomes again black.
Why this is happening and how to fix it?
If I open a new document in CMYK mode, I get the checkerboard like I'm supposed to.
I bought a new PC a few days ago and it is a new installation of Adobe CS4 on Windows 7. Photoshop is updated to version 11.0.2.
I swear that this was not the case a couple of days, when I installed it first, and it has never happened on my old XP computer.
Edit to add: all files show a black background in RGB mode rather than the ground grid, not only when you create a new document.
What are the Photoshop > Preferences > transparency & Gamut > transparency settings?
Mat-text:
Powering the OpenGL in the Performance preference and restarting Photoshop have no bearing on the question?
Except that are Photoshop and OS fully updated and have you performed routines normal troubleshooting (trashing prefs in now command-alt-shift/ctrl-alt-shift key while starting Photoshop, deactivation of 3rd-party plug-ins, system maintenance, validation of fonts, etc.)?
-
Why Airdrop is grayed out?
I tried to look for the reason why my Airdrop no longer works on my Mac and no longer appears in the Finder. I found this, but don't understand why Airdrop is gray and why I can't click on it. Can you help me interpret this? Thank you.
AirDrop will not work for several reasons. First of all, I would ask to make simple helps out as a sign of instance off apple ID and sign. Return your wifi and bluetooth on both devices. put me AirDrop allow to discover: 'Everyone' both on the device.
After doing all this and yet you have difficulty accessing your drop in working shape, click on apple logo > about this Mac > system report > WiFi it get the country code. If you see X 2 or X 0 AirDrop will not work. Then you check your wifi and change the original IE my origin is in the United States and my country code is to US. And the screenshot that you added so quite normal because apple won't allow third-party extension to tinker AirDrop.
It will be useful.
-
Why past events are removed from the calendar
Why past events are removed from the calendar?
Klassical,
Check the settings > Mail, Contacts, calendars > calendars > synchronization > select your condition for the retention of the event.
-
Toshiba 23WL56G: can't change the PC RGB mode settings more
Hello
I have a problem with my (older) 23WL56G: I changed some settings in PC RGB mode and cause of that I can't change the settings more (the image flashes and closes the menu seconds)Q: is der any method to reset the TV?
There is no entry for this menu there is probably a code I can enter the menu? (or a combination of button that I push?)Thanks in advance
Have you tried to reset the TV?
Do this.
GO to the system configuration menu, select TV point Reset and press OK to select. -
, I preferred on cloud creative adobe by credit card, but beginning a lot of program, Pop up tutorial mode, why not admit my membership
Your subscription to cloud shows correctly on your account page?
If you have more than one email, you will be sure that you use the right Adobe ID?
https://www.adobe.com/account.html for subscriptions on your page from Adobe
.
If Yes
Some general information for a subscription of cloud
Cloud programs don't use serial... numbers you, connect you to your cloud account paying to download & install & activate... you may need to sign out of the cloud and restart your computer and log into the cloud for things to work
Sign out of your account of cloud... Restart your computer... Connect to your paid account of cloud
-Connect using http://helpx.adobe.com/x-productkb/policy-pricing/account-password-sign-faq.html
-http://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html
-http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html
-http://helpx.adobe.com/creative-suite/kb/trial--1-launch.html
-ID help https://helpx.adobe.com/contact.html?step=ZNA_id-signing_stillNeedHelp
-http://helpx.adobe.com/creative-cloud/kb/license-this-software.html
.
If no
This is an open forum, Adobe support... you need Adobe personnel to help
Adobe contact information - http://helpx.adobe.com/contact.html
Chat/phone: Mon - Fri 05:00-19:00 (US Pacific Time)<=== note="" days="" and="">===>
-Select your product and what you need help with
-Click on the blue box "still need help? Contact us. "
-
When I click on 'File' and then 'new' it keeps open a new file as a layer and not a background. The RGB mode is selected.
With the new files to open as a layer and not a background, I'm not able to create multiple layers and it won't let me convert the background layer.
How what happened. I've used PS yesterday and had no problem. Today, my computer did updates mandatory day and now this.
Yes. You use the option of Pixel of the Ellipse tool. He's so setting pixels as it is supposed to do without creating a layer.
Choose the option to the form:
Also the menu layer > new layer creates layers and paper rolled up at the bottom of your layers palette also creates a new layer. I hope these work.
-
Why export is gray? PE (11)
Why export is gray? PE (11) (I guess that the export is what I use to create a my prel prodject mov file?)
The tutorial http://forums.adobe.com/thread/1275830 links Page elements will help you... click the links about publish/share
-
I have the latest drivers WHQL of NVIDIA for the GTX780, all updates installed. Why the ' Composition of hardware acceleration, layer or Footage Panel "is disabled in the AE preferences? I can activate the GPU ray-tracing acceleration, AE so clearly can access my GPU.
Here is my GPU of Previews preferences information:
Fast Draft: Available Texture Memory: 768,00 MB Ray-tracing: GPU OpenGL
Vendor: NVIDIA Corporation Device: GeForce GTX 780/PCIe/SSE2 Version: 2.1.2 NVIDIA 355.60 Total Memory: 2,94 GB Shader Model: 4.0 or later CUDA
Driver Version: 7.5 Devices: 1 (GeForce GTX 780) Current Usable Memory: 2,44 GB (at application launch) Maximum Usable Memory: 3,00 GB See the last article here:
features not available in after effects CC 2015 (13.5)
We are working on that for an update for this fall.
-
Hello
I made a few changes on a photo and in the Panel layers (screenshot below), some of layer masks are gray instead of black. I made these changes in quick succession of each other, so I don't understand why some are out some grey and black (which is OK)?
I was doing a box on an image selection, and then by clicking on the button layer mask below layers panel, which then creates a layer / layer mask with the selection and the selected layer mask option (i.e. color balance, brightness / contrast, etc.).
Any help on why this happens and whether or not it is correct would be great.
You did all of the selections as a path with the pen tool (or other vector tool)? If you did and you add the adjustment layer, you will get a vector mask gray/white.
-
Hi all
I wanted to know best practices regarding the use of the tables of session OPA? that is, what was the initial logic of creating tables of session? where we should use them and why? also can you please argue for and against about two approaches mentioned below
Method 1: Save and reterieve OPA session data tables using session ID and case ID?
Approach 2: Save data in Siebel database tables and just use reterieve case Id Siebel data and save the back.
Thanks for your replies.
Session tables are there to allow easy storage of the results of an interview of the OPA. It can be used to extract data from an interview, but probably more useful as an archive of past interviews. Is it possible to load a previous interview in the determinations of the Web from this table.
1. This can be very useful to resume a partially completed interview.
2. it can be used as verification of de facto mechanism to see what has been entered in an interview.
In general I prefer to approach 2 where there are intercepted the incoming data to an interview in a before handler registration and then save the data you need from the interview in the location that you must save it.
-
Why different size of the PNG-24 file format: vs deletion of pixels in the layer mask
I noticed in Photoshop CS5.1 and CS6 strange behavior when saving web files in the PNG-24 format.
CASES1.
I have a layer photo 260 x 360.
Create square 200 x 200 and layer mask to hide selection (effect: transparent square hole inside)
Save for web in format PNG-24 (transparency)-> 131.4 k file size
CASE2.
I have a layer photo 260 x 360.
Create the square Marquee 200 x 200 and delete pixels (effect: transparent square hole inside)
Save for web in format PNG-24 (transparency)-> 66,93 k file size
Both pictures got same transparent square hole, but sizes are so different. Using mask does not reduce the size of the file PNG24. Why is it like that, bug?
For cases 1 and 2 the number of pixels in the image is exactly the same thing then you must consider other factors to take into account the file size differences.
Assuming that the image is a RGB/8 image:
1 uses a mask which means that it is a picture of four channels that require 32 bits per pixel.
Case 2 has no mask is only a picture of 3 channels that require 24 bits of pixel.
If the content of the data in Photoshop is different for the two cases, and the psd for case 1 file size would be larger than in case 2.
In PNG, transparency of files can be specified by declaring the individual pixels to be transparent or an alpha channel can be added. Again, it is 24 bits per pixel compared to 32 bits per pixel. If Photoshop, using enregistrer save for Web, creates an alpha channel for cases 1 and says the individual pixels to be transparent in the case 2, then the differences in file size that you can find should.
Paulo
Maybe you are looking for
-
I've been on youravon.com presentation of replacements. Whenever submit you them, a pop-up box comes up and says "Are you sure you want to move forward" and you need to click 'ok '. After the second time I did Firefox popped up a box saying something
-
Laptop does not partner Toshiba Stor.E disk external HARD
Hello I just bought a new laptop.Pavillion touch screen 14 inches 14-b141sa sleekbook and recognizes the external hard drive, but only in the devices section. It's Windows 8 I get the following when I try to solve problems. Is there anything else I c
-
How to change the Boolean flag rectangle into 2 triangles.
The notation for a valve is two triangles whose ends are touching. I want to show images of the valve as indicators Boolean - red = closed and green = open. Is it possible to change the standard indicators normally rectangular or circular shape to
-
The touchpad scroll not working no-Windows 8 updated
HP Pavilion dv7 laptop computer that came with Windows 7, I've upgraded to Windows 8, but now the touchpad scrolling is not working. I tried; update the driver reinstalled the original driver troubleshoot compatibility on the original tried a battery
-
Error 1719: The Windows Installer Service could not be accessed
Original title: Please help, almost nothing works: video, audio, internet, most of the programs. It is a long story and it arrived a bit at random so I have no idea where to start, but I'm going. While trying to install autodesk software, I received