Stable Diffusion image metadata viewer

Show Stable Diffusion generated image's metadata

As of 2023-03-14. See the latest version.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Stable Diffusion image metadata viewer
// @namespace    https://github.com/himuro-majika
// @version      0.2.1
// @description  Show Stable Diffusion generated image's metadata
// @author       himuro_majika
// @match        http://*/*.png
// @match        http://*/*.jpg
// @match        http://*/*.jpeg
// @match        http://*/*.webp
// @match        https://*/*.png
// @match        https://*/*.jpg
// @match        https://*/*.jpeg
// @match        https://*/*.webp
// @match        file:///*.png
// @match        file:///*.jpg
// @match        file:///*.jpeg
// @match        file:///*.webp
// @require      https://cdn.jsdelivr.net/npm/[email protected]/dist/exif-reader.min.js
// @license      MIT
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const img = document.images[0];
    if (!img) return;

    readExif(img);

    function readExif(img) {
        ExifReader.load(img.src).then(function (tags) {
            // console.dir(tags);
            const com = getComment(tags);
            if (!com) {
                getImgData(img);
                return;
            }
            makeButton();
            makeData(com);
        }).catch(function (error) {
            getImgData(img);
            console.log(error);
        });
    }

    async function getImgData(img) {
        const imgtext = (await(await fetch(img.src)).text());
        // console.log(imgtext);
        const text = imgtext.match(/(?<=Xt(?:parameters|Description|Comment|Dream)\0*)([^\0]+)/ug);
        if (!text) return;
        console.log(text);
        makeButton();
        makeData(text.join(""));
    }

    function getComment(tags) {
        delete tags["MakerNote"];
        delete tags["Bit Depth"];
        delete tags["Color Type"];
        delete tags["Compression"];
        delete tags["Filter"];
        delete tags["Image Height"];
        delete tags["Image Width"];
        delete tags["Interlace"];

        let com = ""

        if (tags["Exif IFD Pointer"] &&
            tags["UserComment"] &&
            tags["UserComment"].description == "[Unicode encoded text]") {
            com = decodeUnicode(tags["UserComment"].value);
            return com;
        }

        if (tags["Description"]) {
            com += tags["Description"].description;
            delete tags["Description"];
        }
        if (tags["Comment"]) {
            com += tags["Comment"].description.replaceAll(/\\u00a0/g, " ");
            delete tags["Comment"];
        }
        if (tags["Title"]) {
            com += tags["Title"].description;
            delete tags["Title"];
        }
        if (tags["Source"]) {
            com += tags["Source"].description;
            delete tags["Source"];
        }
        if (tags["Software"]) {
            com += tags["Software"].description;
            delete tags["Software"];
        }

        Object.keys(tags).forEach(tag => {
            com += tags[tag].description;
        });

        console.log(com);
        return com;
    }

    function decodeUnicode(array) {
        const plain = array.map(t => t.toString(16).padStart(2, "0")).join("");
        if (!plain.match(/^554e49434f44450/)) {
            // console.log(array);
            return;
        }
        const hex = plain.replace(/^554e49434f44450[0-9]/, "").replace(/[0-9a-f]{4}/g, ",0x$&").replace(/^,/, "");
        const arhex = hex.split(",");
        let decode = "";
        arhex.forEach(v => {
            decode += String.fromCodePoint(v);
        })
        return decode;
    }

    function makeButton() {
        const button = document.createElement("button");
        button.innerHTML = "Show SD metadata";
        button.addEventListener("click", showModal);
        document.body.insertBefore(button, img);
    }

    function makeData(text) {
        const positive = extractPositivePrompt(text);
        const negative = extractNegativePrompt(text);
        const others = extractOthers(text);
        const container = document.createElement("div");
        container.id ="_gm_sipv_container";
        container.style.display = "none";
        container.style.width = "100%";
        const copybutton = location.protocol == "http:" ? "" : `<button class="_gm_sipv_copybutton" type="button" style="cursor: pointer; opacity: 0.5;">copy</button>`;
        container.innerHTML = `
<div style="color: #eee; width: 800px; max-width: 100%; margin-left: auto; margin-right: auto; z-index: 2; position: fixed; inset: auto 0; margin: auto; background: #000a; border-radius: 6px; box-shadow: #000 0px 0px 2px;">
    <div style="display:flex; justify-content: space-between; padding: 0px 10px;">
        <h5>Stable Diffusion image metadata</h5>
        <button id="_gm_sipv_closebutton" type="button" style="cursor: pointer; height: 4em; opacity: 0.5; padding: 1em; background: #0000; border: 0; width: 3em;">❎</button>
    </div>
    <div style="padding: 10px;">
        <div>
            <div style="display:flex; justify-content: space-between;">
                <label>Prompt</label>
                ${copybutton}
            </div>
            <textarea rows="6" style="display: block; width: 774px; max-width: 100%; background: #cccc; border: 0px none; margin: 10px 0;">${positive}</textarea>
        </div>
        <div>
            <div style="display:flex; justify-content: space-between;">
                <label>Negative Prompt</label>
                ${copybutton}
            </div>
            <textarea rows="6" style="display: block; width: 774px; max-width: 100%; background: #cccc; border: 0px none; margin: 10px 0;">${negative}</textarea>
        </div>
        <div>
            <div style="display:flex; justify-content: space-between;">
                <label>Other info</label>
                ${copybutton}
            </div>
            <textarea rows="3" style="display: block; width: 774px;  max-width: 100%;background: #cccc; border: 0px none; margin: 10px 0;">${others}</textarea>
        </div>
    </div>
</div>`;
        document.body.insertBefore(container, img);
        document.getElementById("_gm_sipv_closebutton").addEventListener("click", closeModal);
        document.querySelectorAll("._gm_sipv_copybutton").forEach(item => {
            item.addEventListener("click", copyText);
        });
    }

    function extractPositivePrompt(text) {
        try {
            let matchtext = 
            text.match(/([^]+)Negative prompt: /) || 
            text.match(/([^]+)Steps: /) || 
            text.match(/([^]+){"steps"/) || 
            text.match(/([^]+)\[[^[]+\]/);
            return matchtext[1];
        } catch (e) {
            console.log(text);
            return "";
        }
    }

    function extractNegativePrompt(text) {
        try {
            let matchtext = 
            text.match(/Negative prompt: ([^]+)Steps: /) || 
            text.match(/"uc": "([^]+)"}/) || 
            text.match(/\[([^[]+)\]/);
            return matchtext[1];
        } catch (e) {
            console.log(text);
            return "";
        }
    }

    function extractOthers(text) {
        try {
            let matchtext = 
            text.match(/(Steps: [^]+)/) || 
            text.match(/{("steps"[^]+)"uc": /) || 
            text.match(/\]([^]+)/);
            return matchtext[1];
        } catch (e) {
            console.log(text);
            return text;
        }
    }

    function showModal() {
        document.getElementById("_gm_sipv_container").style.display = "block";
    }

    function closeModal() {
        document.getElementById("_gm_sipv_container").style.display = "none";
    }

    function copyText() {
        const value = this.parentNode.parentNode.querySelector("textarea").value;
        navigator.clipboard.writeText(value);
    }

})();