Color Table help

Hello,
I am developing a format plug-in to save out the color table for a document. In the documentation I am having trouble finding how I can access the document's palette. Where can I find this info? Would this work better as a export plug-in? Thank you for your time.

A file format expects to write out the image.
An export plugin could export almost anything (color table, statistics, etc.).
Either one has access to the color table for indexed color images.

Similar Messages

How can I get scripting access to color values in the indexed Color Table?

Hey all,
I'm relatively new to Photoshop scripting, but I've just finished a script that helps my fiance with some very tedious tasks related to textile design.
The last issue that I'm having is that the image I start with is indexed and has a very specific Color Table pallete ( 2-12 colors max + black and white, so 14 max total, sometimes as few as 2 ). Part of my script, I create a number of color chips and fill them with black currently... What I'd like is to be able to get a count of the colors in the Color Table and put the actual color values as hex into an 1 dimension array, so that I fill those black chips I've made with the actual colors from the Color Table.
( I don't know if it makes a difference but I'm converting the image to RGB mode at some point in the script, and back to Indexed Exact ).
Can anyone please help me do this? Needs to be compatible with CS5 and CS6 ideally.
Thanks!!

Cheers for that, your code works but what had thrown me was that the collections appear to be empty - so I hadn't actually tried retrieving one, I just assumed I was looking in the wrong place.
So if I do this in my Immediate window:
App.Current.Resources.Count
0
Yet when I request it, I get one:
App.Current.Resources["TitleTextStyle"]
{Windows.UI.Xaml.Style}
     base {Windows.UI.Xaml.DependencyObject}: {Windows.UI.Xaml.Style}
     BasedOn: {Windows.UI.Xaml.Style}
     IsSealed: false
     Setters: {Windows.UI.Xaml.SetterBaseCollection}
     TargetType: {Name = "TextBlock" FullName = "Windows.UI.Xaml.Controls.TextBlock"}
Looking at the resources object itself, I get similar apparently empty collections:
App.Current.Resources
{Windows.UI.Xaml.ResourceDictionary}
     base {Windows.UI.Xaml.DependencyObject}: {Windows.UI.Xaml.ResourceDictionary}
     Count: 0
     IsReadOnly: false
     Keys: Count = 0
     MergedDictionaries: {Windows.UI.Xaml.DependencyObject}
     Source: null
     ThemeDictionaries: {Windows.UI.Xaml.ResourceDictionary}
     Values: Count = 0

How to load Color Table in VB?

Hi, I'm very new to Illustrator scripting and this problem drives me crazy. I can't find any information on the Web, so please help~!
I have a series of illustrator files(.ai) and a color table(.act), and I wanna apply the same color table to all these image files. I know how to do it in Illustrator: open the ai file, "save for web" then load the color table in by click the color palette button, then click on "done". But how can I do this in VB? anyone have any idea?
Your help is highly appreciated!
Cheers,

any idea? I really need help~

BCG Brightness Contrast Gamma - Looking for BCG function returning color table / lookup table coded in pure G and applicable to Intensity Graph or Picture Control

Looking for BCG function returning color table / lookup table coded in
pure G and applicable to 8-bit Intensity Graph or Picture Control. Do
not want to use IMAQ Vision is this particular application. Any
help is appreciated.
Sincerely,
Don

Take a look at this color model software I put together. (Don't concern yourself much with the basic programming at this point.). The color component generator subVI is borrowed from a LabVIEW example.
First look at test_color2.vi. If you adjust the sliders of the various controls, you will see how it works. You can see that for pure B&W images, brightness, contrast, and gamma (which I think I have coded correctly) are all fairly straightforward to modify.
Now look at test_color3.vi. Here we try to adjust BCG for color images using the color model shown here where current color component clusters are carried into the BCG event cases via shift registers. You can see that once color is introduced into the image, it becomes difficult to mix the colorizing with the BCG model. And this is pretty much where I am right now.
Would be interested in comments / suggestions.
Sincerely,
Don
Attachments:
test_color2.llb ‏2251 KB

Write tif file color table

Hello:
I am trying to write a 16-bit tif file with the proper color table using Vision utility. I cannot get the proper color table. I can save as other formats but have special requests for 16-bit tif.
I have attached an example VI to show you this including a test color table and image. I will cross post in the Vision forum also. Any help is appreciated.
Sincerely,
Don
Attachments:
test_write_tiff.vi ‏56 KB
normalize_2darray_data_for_16-bit_scanner.vi ‏13 KB

Identical post in machine vision message board: write tif file color table
Hope this helps.
-Ben
WaterlooLabs

Lexmark Z1420 - Color table is missing

Hi,
Apologies if this question has been asked a number of times but as you can imagine it can be frustrating when you are unable to print off important documents.
I am unable to print on my Lexmark Z1420 printer as I keep getting the following message:
*+Color table is missing. You must uninstall and reinstall the printer software+*
I have uninstall and reinstall the printer software a number of times and carried out all the current updates but still no luck.
Does any one have any suggestions on how to resolve this?

Does anything in these threads help?
http://discussions.apple.com/thread.jspa?messageID=10696121&#10696121
http://discussions.apple.com/thread.jspa?messageID=10720060&#10720060
http://discussions.apple.com/thread.jspa?messageID=10674474&#10674474
And if you'd like to help sort this out, sending me the /var/log/install.log files available (including any .0, .1 etc. log files) and the /var/log/cups/error_log file at [email protected] would be helpful.
Message was edited by: John Blanchard1

Rainbow color table flatten to pixmap

I want to use the labview flatten to pixmap to make a jpeg file out of a 16 bit greyscale. Labview makes lovely images from my data with the "rainbow" color table. I can't find the rainbow color table anywhere on the forum and would spend many hours trying to make it myself. I have a "rainbow banded" table that I found here on the forum, but it just doesn't do the image justice. Can someone help me out with the plain old rainbow color table? J (using labview 11.0)

Have you tried using your own color gradient with the VI attached to the other forum? There are plenty of rgb color gradients floating around online; Googling 'rgb gradient' returns plenty of examples, such as the one attached below.
Attachments:
rgb-gradient.zip ‏3 KB

Blue-white colored table rows

Hi, table design gurus!
I need in blue-white colored table rows. It looks like Table desing in altenating mode. Alternating mode fits my needs except one. This mode restricts read-only tables but I have regular table with editable cells. Well, I have read an article about how to build colorful tables. Ok, I have got a table in a different colors. But neither blue or white color were not found in WDTableCellDesign. How to use blue and white colors for table row background? I should not ovveride CSS using WD Theme Editor. I want to set a color implicitly in java code. Please, help me.
Any help would be apprecited.

Hi Alexey,
I have never used it, but there is a property called semanticColor in the TextView of the columns of the table.
Go to the layout of the view. Look in the Outline. There you will find Table -> TableColumn -> Caption + TextView. In the properties of the TextView you will find in the semanticColor.
The semanticColor needs to be linked to an element inside the table in the context. So create a node inside the table with cardinality 1..1 and selection 1..1 and add a (calculated) attribute to the node with the correct type (I don't know this one....it is probably inside "com.sap.ide.webdynpro.uielementdefinitions". My guess would be com.sap.ide.webdynpro.uielementdefinitions.TableCellDesign.
Ones you have linked the cell to the attribute in the node you will have to code the changes in color doing something like this. that will probably be easiest if the attribute is of the calculated kind
In the calculated attibute you return WDTableCellDesign.GOODVALUE_LIGHT or whatever color you want.
Hope this helps a bit,
Jeschael

How do I fix RGB "info" pointing in color table customizer?

When I hover my cursor over a cell in the color table customizer, the "info" panel is supposed to show the RGB values of that cell (there's 256 cells, one for each color). Which cell the cursor is pointing at for this RGB info purpose is supposed to be determined by the upper left corner of the mouse cursor, that is to say, where the is the "point" of the arrow cursor is. Unfortunately the RGB info is being shown for the cell near the middle or lower right portion of my cursor, and not the upper left point. However the upper left point of my cursor DOES properly select the color when I click on the cell and it brings up the color picker dialog box). Does anybody know how to fix this for the "info" panel's interaction with pointing at the color cells of the color table?
I'm working with a fresh install of the 32bit version of Photoshop CS6, and my OS is Windows 7 Home Premium x64 (mentioning my OS, just in case my OS somehow has some effect on this).

When I hover my cursor over a cell in the color table customizer, the "info" panel is supposed to show the RGB values of that cell (there's 256 cells, one for each color). Which cell the cursor is pointing at for this RGB info purpose is supposed to be determined by the upper left corner of the mouse cursor, that is to say, where the is the "point" of the arrow cursor is. Unfortunately the RGB info is being shown for the cell near the middle or lower right portion of my cursor, and not the upper left point. However the upper left point of my cursor DOES properly select the color when I click on the cell and it brings up the color picker dialog box). Does anybody know how to fix this for the "info" panel's interaction with pointing at the color cells of the color table?
I'm working with a fresh install of the 32bit version of Photoshop CS6, and my OS is Windows 7 Home Premium x64 (mentioning my OS, just in case my OS somehow has some effect on this).

How to load color table in a indexed mode file??

How to load color table in a indexed mode file??
Actually, if i opened a indexed file and want to edit color table by loading another color table from desktop (or any other location), any way to do this through java scripting??

continuing...
I wrote a script to read a color table from a GIF file and save to an ACT color table file. I think it might be useful for someone.
It goes a little more deeper than the code I posted before, as it now identifies the table size. It is important because it tells how much data to read.
Some gif files, even if they are saved with a reduced palette (less than 256), they have all the bytes for the full color palette filled inside the file (sometimes with 0x000000). But, some gif files exported in PS via "save for web" for example, have the color table reduced to optimize file size.
The script store all colors into an array, allowing some kind of sorting, or processing at will.
It uses the xlib/Stream.js in xtools from Xbytor
Here is the code:
// reads the color table from a GIF image
// saves to an ACT color table file format
#include "xtools/xlib/Stream.js"
// read the 0xA byte in hex format from the gif file
// this byte has the color table size info at it's 3 last bits
Stream.readByteHex = function(s) {
function hexDigit(d) {
    if (d < 10) return d.toString();
    d -= 10;
    return String.fromCharCode('A'.charCodeAt(0) + d);
var str = '';
s = s.toString();
     var ch = s.charCodeAt(0xA);
    str += hexDigit(ch >> 4) + hexDigit(ch & 0xF);
return str;
// hex to bin conversion
Math.base = function(n, to, from) {
     return parseInt(n, from || 10).toString(to);
//load test image
var img = Stream.readFromFile("~/file.gif");
hex = Stream.readByteHex(img);      // hex string of the 0xA byte
bin = Math.base(hex,2,16);          // binary string of the 0xA byte
tableSize = bin.slice(5,8)          // Get the 3 bit info that defines size of the ct
switch(tableSize)
case '000': // 6 bytes table
tablSize = 2
break;
case '001': // 12 bytes table
tablSize = 4
break;
case '010': // 24 bytes table
tablSize = 8
break;
case '011': // 48 bytes table
tablSize = 16
break;
case '100': // 96 bytes table
tablSize = 32
break;
case '101': // 192 bytes table
tablSize = 64
break;
case '110': // 384 bytes table
tablSize = 128
break;
case '111': // 768 bytes table
tablSize = 256
break;
//========================================================
// read a color (triplet) from the color lookup table
// of a GIF image file | return 3 Bytes Hex String
Stream.getTbColor = function(s, color) {
function hexDigit(d) {
    if (d < 10) return d.toString();
    d -= 10;
    return String.fromCharCode('A'.charCodeAt(0) + d);
var tbStart = 0xD; // Start of the color table byte location
var colStrSz = 3; // Constant -> RGB
var str = '';
s = s.toString();
     for (var i = tbStart+(colStrSz*color); i < tbStart+(colStrSz*color)+colStrSz; i++) {
          var ch = s.charCodeAt(i);
          str += hexDigit(ch >> 4) + hexDigit(ch & 0xF);
      return str;
var colorHex = [];
importColors = function (){
     for (i=0; i< tablSize; i++){ // number of colors
          colorHex[i] = Stream.getTbColor(img, i);
importColors();
// remove redundant colors
// important to determine exact color number
function unique(arrayName){
     var newArray=new Array();
     label:for(var i=0; i<arrayName.length;i++ ){
          for(var j=0; j<newArray.length;j++ ){
               if(newArray[j]==arrayName[i])
                    continue label;
          newArray[newArray.length] = arrayName[i];
     return newArray;
colorHex = unique(colorHex);
// we have now an array with all colors from the table in hex format
// it can be sorted if you want to have some ordering to the exported file
// in case, add code here.
var colorStr = colorHex.join('');
//=================================================================
// Output to ACT => color triplets in hex format until 256 (Adr. dec 767)
// if palette has less than 256 colors, is necessary to add the
// number of colors info in decimal format to the the byte 768.
ColorNum = colorStr.length/6;
lstclr = colorStr.slice(-6); // get last color
if (ColorNum < 10){
ColorNum = '0'+ ColorNum;
cConv = function (s){
     var opt = '';
     var str = '';
     for (i=0; i < s.length ; i++){
          for (j=0; j<2 ; j++){
               var ch = s.charAt(i+j);
               str += ch;
               i ++;
          opt += String.fromCharCode(parseInt(str,16));
          str = '';
     return opt
output = cConv(colorStr);
// add ending file info for tables with less than 256 colors
if (ColorNum < 256){
     emptyColors = ((768-(colorStr.length/2))/3);
     lstclr = cConv(lstclr);
     for (i=0; i < emptyColors ; i++){
          output += lstclr; // fill 256 colors
output += String.fromCharCode(ColorNum) +'\xFF\xFF'; // add ending bytes
Stream.writeToFile("~/file.act", output);
PeterGun

Color management help needed for adobe CS5 and Epson printer 1400-Prints coming out too dark with re

Color management help needed for adobe CS5 and Epson printer 1400-Prints coming out too dark with reddish cast and loss of detail
System: Windows 7
Adobe CS5
Printer: Epson Stylus Photo 1400
Paper: Inkjet matte presentation paper with slight luster
Installed latest patch for Adobe CS5
Epson driver up to date
After reading solutions online and trying them for my settings for 2 days I am still unable to print what I am seeing on my screen in Adobe CS5. I calibrated my monitor, but am not sure once calibration is saved if I somehow use this setting in Photoshop’s color management.
The files I am printing are photographs of dogs with lots of detail I digitally painted with my Wacom tablet in Photoshop CS5 and then printed with Epson Stylus 1400 on inkjet paper 20lb with slight luster.
My Printed images lose a lot of the detail & come out way to dark with a reddish cast and loss of detail when I used these settings in the printing window:
Color Handling: Photoshop manages color, Color management -ICM, OFF no color adjustment.
When I change to these settings in printer window: Color Handling: Printer manages color. Color management- Color Controls, 1.8 Gamma and choose Epson Standard it prints lighter, but with reddish cast and very little detail and this is the best setting I have used so far.
Based on what I have read on line, I think the issue is mainly to do with what controls are set in the Photoshop Color Settings window and the Epson Printer preferences. I have screen images attached of these windows and would appreciate knowing what you recommend I enter for each choice.
Also I am confused as to what ICM color management system to use with this printer and CS5:
What is the best ICM to use with PS CS5 & the Epson 1400 printer? Should I use the same ICM for both?
Do I embed the ICM I choose into the new files I create?
Do I view all files in the CS5 workspace in this default ICM?
Do I set my monitor setting to the same ICM?
If new file opens in CS5 workspace and it has a different embedded profile than my workspace, do I convert it?
Do I set my printer, Monitor and PS CS5 color settings to the same ICM?
Is using the same ICM for all devices what is called a consistent workflow?
I appreciate any and all advice that can be sent my way on this complicated issue. Thank you in advance for your time and kind help.

It may be possible to figure out by watching a Dr.Brown video on the subject of color printing. Adobe tv
I hope this may help...............

Lexmark all-in-one printer error: Color table is missing

I've got this "Color table is missing." only after I accepted the automatic update 2.2 of 24.2 MB coming from Lexmark.
To solve the problem I had to remove ALL traces of Lexmark drivers and software, then reinstall the correct driver, the one for Mac Os 10.6 (snow leopard).
Now I must remember NOT to accept any automatic update and I can use again my X3550.
So please DO NOT INSTALL that update 2.2 of 24.2 MB!!!
Message was edited by: Daniele P.

Color table is missing: solved.
I've got this "Color table is missing." only after I accepted the automatic update 2.2 of 24.2 MB coming from Lexmark.
To solve the problem I had to remove ALL traces of Lexmark drivers and software, then reinstall the correct driver, the one for Mac Os 10.6 (snow leopard).
Now I must remember NOT to accept any automatic update and I can use again my X3550.
So please DO NOT INSTALL that update 2.2 of 24.2 MB!!!

Setting color table of intensity graph

Hi!
I set the attribute color table of an intensity graph to a rainbow
distribution of the colors, but now I'm not able to change the color
table with the markers in the front panel.
Do you know a solution?
Thanks, Markus

> I set the attribute color table of an intensity graph to a rainbow
> distribution of the colors, but now I'm not able to change the color
> table with the markers in the front panel.
> Do you know a solution?
>
Intensity graphs have two different modes for its color definition.
The first, typical one, is the Color array. It can be set using
either attributes or interactively and lets you define number/color
pairs that create either a smoothly interpolated or a banded color
gradient. The second mode is the color table. This is useful for
bitmaps or for cases where the color table has been custom generated
on the diagram. When using the color table, the Z scale is still
useful for determining which numbers map to the 0-255 range of the
color table. If you set the
Z scale to autoScale, it will find the
min and max of the data and set the Z to show all data mapped through
the color table. If set smaller, some of the values will map to the
first and last out of range colors. If set larger, it will map the
values to a smaller and smaller number of the colors in the color
table.
It sounds like you really want to be using the color array and not
the color table. The intensity graph automatically switches for
you when you write attributes to it, but there is a way to change
it back the the color array using a popup or attribute.
Greg McKaskle

PE White Balance for separate color tables

I'm trying to use 24-patch color checker. I already have image collected. But they are not exactly 6500K and 2850K. Can I use the images to create separate color tables ?

Yes, you can. It is fine if the numbers don't match, as long as they are reasonably close (e.g., for 6500 it's fine if your image is in the 5000 to 7500 range).

Sensor analog balance for 2850K color table

Hello
I currently try to create a dual illuminant camera profile using DNG Profile Editor 1.0.0.46 beta for our Aptina CMOS MT9P031 based camera.
Using the DNG SDK 1.4, i'm converting the BAYER pattern images to a DNG with a Embedded Profile which has identity matrices set on the color matrixes and analog balance DNG tags.
D65 shooting conditions:
- High-CRI LED based light source set to 6500K @ 300 lx (spectrum fit 96%)
- CMOS sensor analog gains were adapted to achieve a neutral image at the D65 shooting conditions
a. Do I have to keep all component gains to 1.0 or adjust for the illumination?
b. Does it matter what I apply on the embedded camera profile on the AnalogBalance DNG tag?
Std A shooting conditions:
- Same light source set to 2850K @ 300 lx (spectrum fit 92%)
- CMOS sensor analog gains were _not_ adapted to achieve a neutral image. This obviously results in a orange color tint which can be eliminated using the white balance slider on the "Color Matrices" tab of the DNG Profile Editor.
c. Do I have to adapt the analog gains when shooting for 2850K
Using the converted DNGs from shooting conditions above, I can create the color table for 6500K using the "Chart" tab, but not the 2850K color. I always receive the error message:
"Non-neutral gray patches. The gray patch in row 4, column 3, has a significant color cast. Please reshoot the chart carefully to avoid color casts and try again."
...but when using the whitebalanace slider on the "Color Matrices" tab in advance of the "Chart" tab, I can tune the Std A image to a perfect neutral image. There is no color cast visible anymore.
d. Any ideas what I did wrong?
Kind regards
blad

Hi Eric
Thanks for taking the questions. Some details and clarifications:
Our analog gains are set to give a neutral image at D65 and we keep them unchanged even if the in-camera white balance algorithm detects a Std. A illuminant. This means the unprocessed RAW image contains a very warm color tint. Obviously, there is much more red than green and blue in the image. Is it correct, that then f.e. apply:
oNegative->SetAnalogBalance(0.863, 0.599, 0.389);
-> The values are derived from the red, green and blue components in the 2850K reference image from one of the gray patches on the color checker.
Thanks for the tip with the missing ColorMatrix values. When I specify a ColorMatrix and AnalogBalance as (described above) I am able to create a color table using the chart tab in Profile Editor the reference image at D65. I keep getting the error for the reference image at 2850K. Did I specify the ColorMatrix the wrong way?
oProfile->SetCalibrationIlluminant1(lsStandardLightA);
dng_matrix_3by3 oRGBMatrix( 1.627, -0.448, -0.222,
                           -0.434, 1.787, -0.350,
                           -0.341, -2.014, 3.294);
dng_matrix_3by3 oXYZ_to_SRGB_D65( 3.2404542, -1.5371385, -0.4985314,
                                 -0.9692660, 1.8760108, 0.0415560,
                                  0.0556434, -0.2040259, 1.0572252 );
dng_matrix_3by3 oCA = MapWhiteMatrix(StdA_xy_coord(), D65_xy_coord());
oProfile->SetColorMatrix1(oXYZ_to_SRGB_D65 * Invert(oRGBMatrix) * oCA);
As soon as I open the DNG with values from above in DNG Profiel Editor I get a cold image with a blue color cast and click-white balance tells me ~3350K/28 instead of 2850K/0.
Regards
Daniel

Color Table help

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