(Node.js) AI Modify Existing Image with Text Prompt

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Note: This example requires Chilkat v11.4.0 or greater.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    var success = false;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // Load the data from an existing image.
    var bdImageData = new chilkat.BinData();
    success = bdImageData.LoadFile("qa_data/jpg/kid_blue_coat.jpg");
    if (success == false) {
        console.log(bdImageData.LastErrorText);
        return;
    }

    var ai = new chilkat.Ai();

    ai.Provider = "openai";

    // Use your provider's API key.
    ai.ApiKey = "MY_API_KEY";

    // Choose a model.
    ai.Model = "gpt-5";

    var askParams = new chilkat.JsonObject();
    askParams.UpdateString("image.output_format","jpeg");
    ai.SetAskParams(askParams);

    ai.InputAddImageData(bdImageData,"");
    ai.InputAddText("Modify the image by replacing the blue coat with a Metallica T-shirt.");

    // Give the AI some time (2 minutes).
    ai.IdleTimeoutMs = 120000;

    // Ask the AI for image output.
    success = ai.Ask("image");
    if (success == false) {
        console.log(ai.LastErrorText);
        return;
    }

    // Get the image response data.;
    success = ai.GetOutputBd(bdImageData);
    if (success == false) {
        console.log(ai.LastErrorText);
        return;
    }

    bdImageData.WriteFile("c:/aaworkarea/out.jpg");

    console.log("Success.");

    // -------------------------------
    // Sample Input:
    // -------------------------------
    // 

    // -------------------------------
    // Sample Output:
    // -------------------------------
    // 

}

chilkatExample();