diff --git a/notebooks/a_genetic_tree.ipynb b/notebooks/a_genetic_tree.ipynb
deleted file mode 100644
index 1f50d33..0000000
--- a/notebooks/a_genetic_tree.ipynb
+++ /dev/null
@@ -1,33 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "id": "b8bb6f10-0461-4fb9-9f36-9b64ae33405c",
-   "metadata": {},
-   "source": [
-    "# a genetic tree"
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.9.7"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}
diff --git a/notebooks/read_img_folder.ipynb b/notebooks/read_img_folder.ipynb
deleted file mode 100644
index 15b3612..0000000
--- a/notebooks/read_img_folder.ipynb
+++ /dev/null
@@ -1,52 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "code",
-   "execution_count": 2,
-   "id": "b62b0bd9-f122-42da-a9c3-514d9e9faf1e",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import os, cv2\n",
-    "\n",
-    "def load_images_from_folder(foldername):\n",
-    "    images = []\n",
-    "    for filename in os.listdir(foldername):\n",
-    "        img = cv2.imread(os.path.join(foldername,filename))\n",
-    "        if img is not None:\n",
-    "            images.append(img)\n",
-    "    return images\n",
-    "img_list=load_images_from_folder(\"img\")"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "129f15f9-e431-4796-95f7-f11a05518768",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.9.7"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}