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Workflow: Is there a faster way to change the color of a layer on multiple images randomly

Community Beginner ,
Apr 11, 2022 Apr 11, 2022

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That may or may not have made sense in terms of a title, but let me explain. I am working on a project that has a component of which that deals with HEX color. Let's say I have 100 images. The vector I am using has only 2 layers. One of those layers I need to change the color to a random HEX color, and put it on a gradient background. I initially thought maybe a photoshop action but it has an issue with the random nature of the color. I also search and found scripts that will randomly change the color of multiple pieces of an image (like dots, shapes etc,) but nothing that comes close to what I am trying to accomplish. There is a possibility I am thinking beyond the capabilities of the software at this point, but I figured I would try one last avenue to see if anyone had any other ideas I haven't googled yet. My apoligies if I am not asking this question the right way. Basically I need a script of workflow that completes this for over 100 images. Thank you.

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Scripting , Third party plugins , Tools

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correct answers 1 Correct answer

Community Expert , Apr 12, 2022 Apr 12, 2022

There is a beautiful script called "Randomus", provided by Alexander Ladygin. Among other things it may do exactly what you are looking for.

 

randomus_ladygin_002.png

 

See: Randomus

 

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Community Expert ,
Apr 11, 2022 Apr 11, 2022

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can you share a sample file?

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Community Beginner ,
Apr 11, 2022 Apr 11, 2022

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40DFDO.png00496E.png004F4D.png

Each on of these images has two layers. The mouth/eyes (1), and the body (2). Instead of going through hundreds of them I am looking of way to randomly generate a unique HEX color for the entire batch. Just changing the body (2) to a random HEX. 

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Guide ,
Apr 11, 2022 Apr 11, 2022

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It sounds doable, but there are ambiguities. (1) You presumably mean vector graphics, not "images". Are these 100 vector graphics in one file or 100 files? (2) You presumably mean path, not "layer". To clarify this, and to see the anatomy of your vector graphic, can you show your fully expanded Layers panel (this is the reason a sample file was ask for)? And (3) about colors: Do you want the script to select a random color form a pre-defined swatch? Or do you want the script to generate a completely random RGB color?

 

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Community Expert ,
Apr 11, 2022 Apr 11, 2022

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exactly, that's why it's always important to include sample ai files, 

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Community Beginner ,
Apr 11, 2022 Apr 11, 2022

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My apoligies. I do mean vector graphics, not "images," and I am referring to paths not "layers." I'm not as familar with Illustrator as you and I appreciate your patience. The layer term came from the fact that it literally says layers, but I stand corrected. When you asked for a sample file, I was unaware that it was and .ai that was needed but I understand now. Thank you. As to your last two questions, either selecting from a predefined swatch, or some kind of script would be amazing, and considering I am learning all kinds of lessons on here today, it sounds like you may have an idea. I included the file as well as a screenshot of layer's panel. Seems like I'm getting closer to knowing what it is I am actually asking. I appreciate your knowledge.

 

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Community Beginner ,
Apr 11, 2022 Apr 11, 2022

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Not sure why the file did not attach to the previous post, but here we go.

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Guide ,
Apr 12, 2022 Apr 12, 2022

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Unfortunately, I can't open your eps file, because I'm using an older version of Illustrator.  But your screenshot is helpful.  Your Layers panel has one layer called "Layer 1", in which there are two groups.  Can you expand these groups and any items within them (by clicking the right arrow heads to the left of the items, so that no right arrow heads are left)?  

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Community Beginner ,
Apr 12, 2022 Apr 12, 2022

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Thank you for looking at my post. I am going to try posting the .ai file as well. As I am not familiar with Illustrator as much as Photoshop if this upload fails maybe you can point me to why. The file I am uploading is from my library says

quote

Unfortunately, I can't open your eps file, because I'm using an older version of Illustrator.  But your screenshot is helpful.  Your Layers panel has one layer called "Layer 1", in which there are two groups.  Can you expand these groups and any items within them (by clicking the right arrow heads to the left of the items, so that no right arrow heads are left)?  


By @femkeblanco



. Ill try to do that anyway. I have included the layers expanded in the screenshot provided. I appreciate your help. Screenshot 2022-04-12 172230.png

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Community Beginner ,
Apr 12, 2022 Apr 12, 2022

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Sorry it says this instead of quoting your post lol 

Correct the highlighted errors and try again.

The attachment's ad310b_58412cbf-7d93-4b50-82e3-5b7f1ead910b.ai content type (application/postscript) does not match its file extension and has been removed.

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Community Expert ,
Apr 12, 2022 Apr 12, 2022

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There is a beautiful script called "Randomus", provided by Alexander Ladygin. Among other things it may do exactly what you are looking for.

 

randomus_ladygin_002.png

 

See: Randomus

 

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Community Beginner ,
Apr 12, 2022 Apr 12, 2022

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Thank you I'll have to check that out. I saw it in my initial research but assumed it was for something other than what it is I am trying to do. Reading the docs there may be a way to configure it to my liking. Appreciate the resource my friend

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Community Expert ,
Apr 12, 2022 Apr 12, 2022

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You may want to trust me. Alexander's script will do what you are going to do.

 

You may have to experiment a bit with it.

 

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Community Beginner ,
Apr 12, 2022 Apr 12, 2022

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Do it as we speak my friend. Hopefully I'm not as dense as I think I am. Really appreciate the link

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Community Beginner ,
Apr 12, 2022 Apr 12, 2022

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This is amazing my friend. It is exactly what I was looking for. You are right! It's not that I didn't "trust" you, it was a simple matter of whether I could use the tools you provided. Interface is easy and simple to use, and the instructions on Github were easy to follow. Since you seem to be the guy on here, the overall reason I wanted this type of script was to build assets quickly. Now that I have the random color generator of my dreams, do you know of a way to export quickly using the hex color as the filename? Like if I wanted to export to .png but have it automatically name the file the hexcolor. Either exporting it to a folder or my library. Thank you again.

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Community Expert ,
Apr 13, 2022 Apr 13, 2022

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Well, that may be possible by creating another script.

 

I don't know if there is already one that can do it. Sorry.

 

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Enthusiast ,
Apr 16, 2022 Apr 16, 2022

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Is that what you want?

export-hex-demo.gif

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Community Beginner ,
Apr 16, 2022 Apr 16, 2022

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That is exactly what I need. As of now I'm doing it by just painstaking labor. How do I learn this export.js? Is there a git for it?

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Enthusiast ,
Apr 16, 2022 Apr 16, 2022

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https://gist.github.com/creold/44b75fead3602545510ffc22c270cbbd

/*
  Separate export of selected paths or text to PNG with HEX color name
  Author: Sergey Osokin, email: hi@sergosokin.ru
  Check other author's scripts: https://github.com/creold
  https://community.adobe.com/t5/illustrator-discussions/workflow-is-there-a-faster-way-to-change-the-color-of-a-layer-on-multiple-images-randomly/td-p/12872250
*/

//@target illustrator
app.preferences.setBooleanPreference('ShowExternalJSXWarning', false); // Fix drag and drop a .jsx file

// Main function
function main() {
  if (!documents.length) return;
  if (selection.length == 0 || selection.typename == 'TextRange') return;

  var doc = activeDocument,
      docSel = selection,
      docFolder = Folder(doc.path).exists ? doc.path : Folder.desktop,
      isReplaceFile = false; // Replace when names match
  
  var exportOptions = new ExportOptionsPNG24();
  exportOptions.antiAliasing = true;
  exportOptions.transparency = true;

  selection = null;
  
  for (var i = 0, len = docSel.length; i < len; i++) {
    exportAsPNG(docSel[i], docFolder, isReplaceFile, exportOptions);
  }
}

// Export single item
function exportAsPNG(item, folder, isReplace, exportOptions) {
  var rgb = {};
  
  if (item.typename == 'CompoundPathItem' && item.pathItems) {
    rgb = item.pathItems[0].fillColor;
  } else if (item.typename == 'PathItem') {
    rgb = item.fillColor;
  } else if (item.typename == 'TextFrame') {
    rgb = item.textRange.fillColor;
  } else {
    return;
  }

  if (rgb == undefined || rgb.typename !== 'RGBColor') return;

  var hex = rgb2Hex(rgb.red, rgb.green, rgb.blue).toUpperCase(),
      fileName = folder + '/' + hex,
      file = File(fileName + '.png');

  if (file.exists && !isReplace) {
    var counter = 2;
    do {
      var newName = fileName + '_' + counter++;
      file = File(newName + '.png');
    } while (file.exists)
  }

  item.selected = true;
  app.activeDocument.exportSelectionAsPNG(file, exportOptions);
  selection = null;
}

// https://stackoverflow.com/questions/5623838/rgb-to-hex-and-hex-to-rgb
function rgb2Hex(r, g, b) {
  return componentToHex(r) + componentToHex(g) + componentToHex(b);
}

function componentToHex(c) {
  var hex = c.toString(16);
  return hex.length == 1 ? '0' + hex : hex;
}

// Run script
try {
  main();
} catch (e) {}

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Community Beginner ,
Apr 16, 2022 Apr 16, 2022

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Let's give it a shot. I'll let you know how it goes. Thank you for all your help

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Community Beginner ,
Oct 15, 2022 Oct 15, 2022

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Did not come back soon enough to say you have changed my life with this

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Enthusiast ,
Oct 15, 2022 Oct 15, 2022

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I'm glad to hear that. Batch processes should make life better for designers.

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