? Selection of 2/3 the RGB channels to adjust levels

Similar Questions

• Is posible to replace one of the RGB channels?

  HII everyone, I have a photo where the blue layer is totally black and the sound, so I have to know if it is posible to delete this and

  create a copy of the green or red channel and apply it as Blue Coat?

  Thank you

  Yes put what you want in the blue channel to the Clipboard as a copy of the Red layer, and then in the palette layers, select the blue channel and paste

• The RGB channels to layers of script

  When you double-click a layer in a Photoshop document, you can set each RGB channel under "Advanced fusion." How you can script this?

  There was quite a similar question about CMYK channels, where MarkWalsh was recording an action. However, I'm still stuck to transform this action code in JavaScript code. And I can't find any clues in the "Photoshop CS4 JavaScript reference".

  http://forums.Adobe.com/message/2308538#2308538

  Any idea?

  Yes, to work with Advanced Blending, you need to use scriptlistner.

  However, there are other ways of working with channels. Some use the DOM, some also need scriptlistner.

• LR4.1 - tone curve - how to set the individual RGB channels?

  Hello

  I can't find out how to set the curve of different RGB channels.  I guess the LR4 tone curve works as the dialog box curves PS with the channel drop-down list.

  LR4.1 help says:

  To make adjustments at different points on the tone curve, choose an option in the menu of the curve of points, click the button change the curve of points , and then do one of the following:

  • Choose an option from the popup menu of the channel. You can change the three channels at once, or choose to change the red, green, or blue channel individually.

  When I click on the small icon in the lower right corner of the Panel curve tones, the Panel shrinks while I do not see the sliders of regions.  If I click again, they are visible again.  I can't find where to select one of the three channels indvidual.

  Aid refers to the "Point curve menu."  Where is the menu Point curve?  The curve of points is different from the tone curve?

  If I right-click (Windows) in the curve dialog box, the shortcut menu has an option show information.  I click on it power and don't see any change or any info.  Where should I look for info?
  

  Thanks for any help here.

  John

  
  

  Hi John,.

  The curve of points is without cursors. The settings for the individual channels are only available with

  PV2012. You must be editing a file with PV2010 or 2003. When to PV2012, you will see "channels: RGB" under the window of the curve. Click on the triangles of doule following RGB

  for each channel.

  HTH

  Rich

• Select the physical channels of front panel

  Hi all

  Currently, I am trying to build an execuatble file which is dummy proof and has variations of the application is available.  I'm currently trying to give the user the opportunity to select the physical channels of the façade, through a group of check boxes or buttons... etc.  Then I have an array of strings containing all the names of the channels. I tried to run it through a loop with a structure of business inside and what false, the column of the table would be removed.  Instead, I get a blank table column, what does not work when he goes to the node of the active channel.

  So in short, how can I remove this column of the table in a loop for?

  Here's a picture of something ive been trying.

  Or is there an easier way to call from the front channels, im all ears.

  Thank you

  
  

• Select the dynamic channel to fill in the legend

  Hello no,.

  I am the acquisition of 16 channels each channel has their own name, when I double click on the graph, the populous select.vi channel and it will list the name of the channel. If I select the first channel 5 or last name 5 channels or channel. the selected channel must be complete on behalf of legend.

  I am facing the problem, when I select the way to any list of channels his does not display does not name, the same method that I did with labview 7.1, which has been working well.

  Please find this attachment, my code

  Hello

  Find error or anything just a blank field name while doing this operation.

  A point I can see here is:

  1. the table "name out" which bears the names of channel should have clues covered by array index.  If the index covered by index out is not in the name of then an empty string will be returned.

  Please check if this condition is met.

• In Gimp, there is a command called "alpha to selection". Who selects the alpha channel only. What is the equivalent command in Photoshop?

  In Gimp, there is a command called "alpha to selection" which automatically selects the alpha channel of the image or layer. What is the equivalent command that in Photoshop? I tried Googling it but everything that comes is tutorials on masks. I just want to know what to select the alpha automatically without using a 'magic wand' to select one by one.

  CMD (mac) or Ctrl (pc), click on everything that has transparency and that load a selection. This includes layers with transparency, masks layers, channels and paths. Also, there is a selection at the bottom of the layers, paths and channels Panel icon that looks like a dotted circle.

• 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.

  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.

• RGB channel does not show the imported images...

  RGB channel does not show the images imported... I can see it in blue, red and green circuit, but not in RGB... Please help...

  (I use Photoshop CS6)

  Well, that clarifies.

  Open Photoshop > edit > Preferences > Performance > the GPU settings > advanced settings > Drawing Mode > change to base - from now on, it is in "Advanced". See if that helps.

  If so, your video card doesn't support acceleration entirely for CS6.

  Looks like the driver of your video card is old about 3 years and more than 4 main versions:

  Driver date: 20090208190620.000000 - 000

  Driver version: 7.01.01.849

  Visit the AMD Web site to search for the latest drivers.

  The current version is 12.6, released July 23, 2012. This will certainly help you with your question.

  Also, go to help > update and download / install all the updates that are available for Photoshop. The current version is 13.0.1. You run 13.0 which is a compilation of March 2012.

  Let us know how it goes.

  -ST

• Select the Alpha channel, such as layer effects

  Hey,.

  If I hold down the CTRL key while clicking on a layer, I get Alpha channel to selection features, which is exactly what I want, but the function includes all the layer effects.

  In particular, I would like to take the drop shadow effect.

  Sort easily accomplish what I want? I use the selection to copy/paste the pieces of design for use on the Web site design.

  You can target multiple layers and drag them as a unit, on your document design and in your design, you can merge them into a single layer.  When you merge layers, they are rasterzied which will include the layer effects.  This will leave your original document intact with its layers and the layer styles.  If in your description you do not merge the layers move layes them will be intact, layer styles. If merge you them the you'll one layer with the applied end styles and the merged layer will not have a layer style itself.

  I don't know if when layer styles are applied when the merger if these layers will mix in the lower layers as layer styles would be if you start to change the lower layers, after you merge layers.

• Save the selections compared to making them alpha channels?

  When I started to dabble with Amnesty International, many years ago, I saved selections as alpha channels and reloaded them as needed, but now I see that you can just save them in the Select menu. Is there a reason to do it again through the alpha channel? There are pros and cons either way?

  Thank you.

  I think you're confusing this with Photoshop...

  Mylenium

• Photoshop CS6 using javaScript to truncate the name of the alpha channel

  Hello

  I am a production artist and I work with PSD files created in Adobe Scene7's Image Authoring Tool. These PSD files contain a background as well as the alpha 1-20 layers layer. My script should make a new empty layer for each alpha channel in the document. He then fills the new grey layer. So far, my code accomplishes this mission. However, I would like to apply the alpha channel of the layer name, but I need the name will be truncated. Each alpha channel begins with one or more characters, followed by a bar backslash and then ends with one or more characters. Here is an example:

  An alpha channel can be named: Floor\floor

  In this example, I need my name of layer to be fair: floor. This means that all characters to the left of the backslash, including the backslash itself needs to be scrapped. I used the subSring() for this statement. When I try to step through the code line by line in ExtendScript, I immediately get an error that says no complete string constant and line 31 of my code is highlighted. I think that he doesn't like the way I wrote the backslash character, although I have it surrounded by double quotes to define it as a string.

  Can someone tell me why I get this error?

  Here is my code with a lot of comments to guide you through the process. I wrote where the error occurs in red characters.

  I'm new to JavaScript, so I'm not sure that my while loop is accurate.

  #target photoshop

  #target photoshop makes the script execution in PS.

  declare the variable to contain the active document

  var myDoc = app.activeDocument;

  declare the variable to hold the number of alpha channels, excluding the RGB layers

  var alphaChan = myDoc.channels.length - 3;

  Alert ("alpha channels exist" + alphaChan);

  create a loop to make new layers depends on the number of channels alpha, fill layer with gray and apply the name of alpha channel to the new layer

  for (a = 0; a < alphaChan; a += 1) {}

  make new Virgin layer

  myDoc.artLayers.add ();

  fill empty layer with gray

  var color = new SolidColor();

  Color.RGB.Red = 161;

  Color.RGB.Green = 161;

  Color.RGB.Blue = 161;

  myDoc.selection.fill (color);

  variable stores the name of the alpha channel

  var alphaName = myDoc.channels [3 + a];

  variable stores the length of the name of alpha channel

  var lz = alphaName.length;

  declare the index variable to initialize the character position 1 the name of alpha channel

  var x = 0;

  truncate the name of the alpha channel by removing all characters preceding the symbol "\".

  While (alphaName.subString (x)! = ' \ ') { (ExtendScript gives an error for this line and highlights the backslash and surrounding quotes) }

  alphaName = alphaName.subString ((x+1), z);

  x += 1;

  z = 1;

  Return alphaName;

  }

  remove the backslash in name of alpha channel

  alphaName = alphaName.subString ((x+1), z);

  apply name truncated to the corresponding layer alpha channel

  myDoc.artLayers [a] .name = alphaName;

  }

  While (alphaName.subString (x)! = ' \ ') {}

  should be

  While (alphaName.subString (x)! = ' \ ') {}

• How to get the RGB value of a pixel in a psd document using scripting Photoshop

  Hi, guys!    Does anyone know how to get the RGB value of a pixel in a psd document using scripts in Photoshop?  I myself have missed for a long time and could not resolve. I am very happy to hear your voice as soon as possible!

  Here is an example...

  var originalUnits = app.preferences.rulerUnits;
  app.preferences.rulerUnits = Units.PIXELS;
  var doc = activeDocument;
  var Colour1 = GetHexColour(eyeDropperRGB(1,doc.height-1));
  var Colour2 = GetHexColour(eyeDropperRGB(20,doc.height-5));
  var Colour3 = GetHexColour(eyeDropperRGB(40,doc.height-14));
  alert("Colour 1 = " +Colour1 + "\rColour 2 = " +Colour2 + "\rColour 3 = " +Colour3);
  var decColour = eyeDropperRGB(40,doc.height-14);
  alert("Red = " +decColour[0] + "\rGreen = " +decColour[1] + "\rBlue = " +decColour[2]);
  app.preferences.rulerUnits = originalUnits;
  function GetHexColour(reqHex){
  var out='';
  for(No in colours = reqHex){
   out = out.concat(zeroPad(d2h(reqHex[No]),2));
   }
  return out;
  };
  function eyeDropperRGB(x,y) {
   var x2 = x + 1;
   var y2 = y + 1;
   var out = new Array(3);
   activeDocument.selection.select([[x,y], [x2,y], [x2,y2], [x, y2]], SelectionType.REPLACE, 0, false);
   for(ch in list = ["Red", "Green", "Blue"]) {
   histogram = activeDocument.channels[list[ch]].histogram;
    for (i = 0; i <= 255; i++) {
     if (histogram[i]) {
      out[ch] = i;
      break;
     }
    }
   }
    return out;
  };
  function d2h(d) {return d.toString(16);}
  function zeroPad(n, s) {
     n = n.toString();
     while (n.length < s)  n = '0' + n;
     return n;
  };
  

• Toshiba 32W1333DN: name of moving/deleting/edit buttons for the missing channels

  Hello

  I just bought 32W1333DN in Sweden.
  But I can't change the position of the channels in the channel list.

  Both the Quick start guide that comes in the box with the TV and the online manual has pictures and details on how to move/remove the channels and change the names of channel in the channel list.

  I'm supposed to go in
  Menu->-> Edit Channel List channel list.

  Once there, I select channels and perform tasks by selecting the buttons.

  But these buttons aren't where I watch my TV.
  Instead of the buttons for * OK * / * Move * / * remove * / * change name * / * lock * I've * OK * / * lock *.

  What is going on?

  In settings, version of the program is * V.2.1.4A * and upgrade software * V.2.1.9x *.

  Hello

  Please take a look in the user manual
  [Manual Toshiba 32W1333 | http://www.toshiba-om.net/LCD/PDF/English/W1333-32-English.pdf]

  Page 17 provides information on the list of chains, sorting programs and program locking.

  For example, to move the only channel in the list, you must do the following:
  Channel order can be changed according to your personal preferences.

  SELECT the main key channels list menu, then press OK.
  Select modify the channel list to manage all channels. Use upward or downwards and the OK button to select Edit list of strings.
  The Move option in the channel button list and press OK.
  Change number of screen will be displayed. Enter the desired channel number using the number keys on the remote control. If there is a channel previously stored on that number, a warning screen will be displayed. Select Yes if you want to move the channel and press OK.
  Selected channel is now moved.

• Why the Math channel records datapoints twice as much as my channels of data when I export it?

  I have data on channels 1 and 2 and also have the selected math (A + B) channel.

  When I export data, it records twice as many data points for the channel of mathematics than others. Why is this?

  Notice that I use a sample, pic not detect.

  If someone could answer this question, I would be very grateful.

  Lesachtalerhof wrote:

  I have data on channels 1 and 2 and also have the selected math (A + B) channel.

  When I export data, it records twice as many data points for the channel of mathematics than others. Why is this?

  What version of the application you are using - 1.0, 1.1 or 1.2?

  In versions 1.0 and 1.1, the math channel makes a linear interpolation between the samples using cursors support and measures. 1.2, we have improved the cursors and were able to remove the linear interpolation.

  What is your version of the application, the time stamp associated with each sample will tell when the sample was taken.