diff --git a/src/Metadata.js b/src/Metadata.js
index c11e4a4..889d289 100644
--- a/src/Metadata.js
+++ b/src/Metadata.js
@@ -5,6 +5,7 @@ class ManifestMetadata {
     title = '';
     edition = '';
     technique = '';
+    pca = null;
     date = '';
     imageAuthor = '';
     license = 'CC BY-NC-ND 4.0';
@@ -18,6 +19,7 @@ class ManifestMetadata {
      *          title,
      *          edition,
      *          technique,
+     *          pca,
      *          date,
      *          imageAuthor,
      *          license,
@@ -32,6 +34,7 @@ class ManifestMetadata {
         // There should always be a technique value
         // in the metadata param
         this.technique = metadata.technique;
+        this.pca = metadata.pca ?? this.pca;
         this.date = metadata.date ?? this.date;
         this.imageAuthor = metadata.imageAuthor ?? this.imageAuthor
         this.license = metadata.license ?? this.license;
@@ -44,17 +47,26 @@ class ManifestMetadata {
      * @returns {Array<{label, value}>}
      */
     toObject() {
-        return [
-            {label: "Papyrus", value: this.papyrus},
+        let metadataObj = [
+            {label:"Papyrus", value: this.papyrus},
             {label:"Author", value: this.author},
             {label:"Title", value: this.title},
             {label:"Reference edition", value: this.edition},
             {label:"Technique", value: this.technique},
+        ];
+
+        if (this.pca) { 
+            metadataObj.push({label:"Principal Component Analysis",value: this.pca});
+        }
+
+        metadataObj.concat([
             {label:"Date (Year)", value: this.date},
             {label:"Image Author", value: this.imageAuthor},
             {label:"License", value: this.license},
             {label:"Copyright", value: this.copyright},
-        ]
+        ]);
+
+        return metadataObj;
     }
 }
 
diff --git a/src/common.js b/src/common.js
index 3f7f8da..fb1dd99 100644
--- a/src/common.js
+++ b/src/common.js
@@ -18,6 +18,8 @@ const TECH_NAMES = {
 }
 const authors = {
 	DAN: 'Danilo P. Pavone',
+	AUR: 'Aurélie Tournié',
+	SAB: 'Sabrina Samelo',
 };
 /**
  * @param {string} imgFilename 
@@ -30,6 +32,16 @@ function extractNIRMetadata(imgFilename) {
 		date: imgFilename.split('-')[0].match(/\d{4}/)[0],
 	}
 }
+/**
+ * @param {string} imgFilename 
+ * @returns {{papyrus:string,imageAuthor:string,pca:string,date:string}}
+ */
+function extractHSIMetadata(imgFilename) {
+	let hsi = extractNIRMetadata(imgFilename);
+	hsi.pca = imgFilename.split('_')[1].split('_')[2];
+
+	return hsi;
+}
 /**
  * @param {string} imgFilename 
  * @returns {{papyrus:string,imageAuthor:string,date:string,copyright:string}}
@@ -219,6 +231,7 @@ Common.getMetadataFromImgName = function (imgFilename, technique) {
 		nir: extractNIRMetadata,
 		dn: extractDNMetadata,
 		do: extractDOMetadata,
+		his: extractHSIMetadata,
 	}
 
 	return extractor[technique](imgFilename);