diff --git a/package-lock.json b/package-lock.json
index 925bab4..184d030 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4039,8 +4039,7 @@
     "callsites": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
-      "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==",
-      "dev": true
+      "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ=="
     },
     "camelcase": {
       "version": "5.3.1",
@@ -5504,6 +5503,12 @@
       "integrity": "sha512-6J72N8UNa462wa/KFODt/PJ3IU60SDpC3QXC1Hjc1BXXpfL2C9R5+AU7jhe0F6GREqVMh4Juu+NY7xn+6dipUQ==",
       "dev": true
     },
+    "esm": {
+      "version": "3.2.25",
+      "resolved": "https://registry.npmjs.org/esm/-/esm-3.2.25.tgz",
+      "integrity": "sha512-U1suiZ2oDVWv4zPO56S0NcR5QriEahGtdN2OR6FiOG4WJvcjBVFB0qI4+eKoWFH483PKGuLuu6V8Z4T5g63UVA==",
+      "optional": true
+    },
     "espree": {
       "version": "7.3.0",
       "resolved": "https://registry.npmjs.org/espree/-/espree-7.3.0.tgz",
@@ -6996,6 +7001,14 @@
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       "dev": true
     },
+    "is-observable": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-observable/-/is-observable-1.1.0.tgz",
+      "integrity": "sha512-NqCa4Sa2d+u7BWc6CukaObG3Fh+CU9bvixbpcXYhy2VvYS7vVGIdAgnIS5Ks3A/cqk4rebLJ9s8zBstT2aKnIA==",
+      "requires": {
+        "symbol-observable": "^1.1.0"
+      }
+    },
     "is-path-inside": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/is-path-inside/-/is-path-inside-3.0.2.tgz",
@@ -10041,6 +10054,11 @@
         "has": "^1.0.3"
       }
     },
+    "observable-fns": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/observable-fns/-/observable-fns-0.5.1.tgz",
+      "integrity": "sha512-wf7g4Jpo1Wt2KIqZKLGeiuLOEMqpaOZ5gJn7DmSdqXgTdxRwSdBhWegQQpPteQ2gZvzCKqNNpwb853wcpA0j7A=="
+    },
     "on-finished": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
@@ -12232,6 +12250,11 @@
         }
       }
     },
+    "symbol-observable": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-1.2.0.tgz",
+      "integrity": "sha512-e900nM8RRtGhlV36KGEU9k65K3mPb1WV70OdjfxlG2EAuM1noi/E/BaW/uMhL7bPEssK8QV57vN3esixjUvcXQ=="
+    },
     "symbol-tree": {
       "version": "3.2.4",
       "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
@@ -12537,6 +12560,18 @@
       "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
       "dev": true
     },
+    "threads": {
+      "version": "1.6.3",
+      "resolved": "https://registry.npmjs.org/threads/-/threads-1.6.3.tgz",
+      "integrity": "sha512-tKwFIWRgfAT85KGkrpDt2jWPO8IVH0sLNfB/pXad/VW9eUIY2Zlz+QyeizypXhPHv9IHfqRzvk2t3mPw+imhWw==",
+      "requires": {
+        "callsites": "^3.1.0",
+        "debug": "^4.1.1",
+        "is-observable": "^1.1.0",
+        "observable-fns": "^0.5.1",
+        "tiny-worker": ">= 2"
+      }
+    },
     "throat": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/throat/-/throat-5.0.0.tgz",
@@ -12565,6 +12600,15 @@
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       "integrity": "sha512-lBN9zLN/oAf68o3zNXYrdCt1kP8WsiGW8Oo2ka41b2IM5JL/S1CTyX1rW0mb/zSuJun0ZUrDxx4sqvYS2FWzPA=="
     },
+    "tiny-worker": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/tiny-worker/-/tiny-worker-2.3.0.tgz",
+      "integrity": "sha512-pJ70wq5EAqTAEl9IkGzA+fN0836rycEuz2Cn6yeZ6FRzlVS5IDOkFHpIoEsksPRQV34GDqXm65+OlnZqUSyK2g==",
+      "optional": true,
+      "requires": {
+        "esm": "^3.2.25"
+      }
+    },
     "tmpl": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/tmpl/-/tmpl-1.0.4.tgz",
diff --git a/package.json b/package.json
index 5fbbdf8..8c6356e 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,8 @@
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "react-photo-gallery": "^8.0.0",
-    "sharp": "^0.26.1"
+    "sharp": "^0.26.1",
+    "threads": "^1.6.3"
   },
   "devDependencies": {
     "@types/bcrypt": "^3.0.0",
diff --git a/server/bulk_calculate_sift_features/calculate_sift_features.ts b/server/bulk_calculate_sift_features/calculate_sift_features.ts
new file mode 100644
index 0000000..69e03d6
--- /dev/null
+++ b/server/bulk_calculate_sift_features/calculate_sift_features.ts
@@ -0,0 +1,29 @@
+import * as cv from 'opencv4nodejs'
+import path from 'path';
+import db_ops from '../helpers/db_ops'
+import config from '../../config/config'
+const detector=new cv.SIFTDetector({ nFeatures: 400 })
+const PATH_TO_IMAGES = path.join(config.root_path, 'public', 'images')
+
+async function calculate_color_hist(){
+    const images = await db_ops.image_ops.get_all_images()
+    for(const image of images){
+        const check_if_already_calculated= await db_ops.image_search.get_sift_features_by_id(image.id)
+        if(check_if_already_calculated.length!==0){
+          continue
+        }
+        console.log(image.id)
+        const img = await cv.imreadAsync(`${PATH_TO_IMAGES}/${image.id}.${image.file_ext}`);
+        const keyPoints = await detector.detectAsync(img);
+        const descriptors = await detector.computeAsync(img, keyPoints);
+        descriptors.release()
+        img.release()
+        const descriptors_as_array=descriptors.getDataAsArray()
+        await db_ops.image_search.add_sift_features_by_id(image.id,descriptors_as_array)
+    }
+}
+
+async function run() {
+  await calculate_color_hist()
+}
+run()
\ No newline at end of file