diff --git a/jupyter.ipynb b/jupyter.ipynb
index c064244..eee29df 100644
--- a/jupyter.ipynb
+++ b/jupyter.ipynb
@@ -14,7 +14,7 @@
      "name": "stderr",
      "output_type": "stream",
      "text": [
-      "/var/folders/8w/3c34c7kd2n144tvm764_pdbw0000gq/T/ipykernel_2611/1657712203.py:16: DeprecationWarning: Importing display from IPython.core.display is deprecated since IPython 7.14, please import from IPython display\n",
+      "/var/folders/8w/3c34c7kd2n144tvm764_pdbw0000gq/T/ipykernel_3019/1657712203.py:16: DeprecationWarning: Importing display from IPython.core.display is deprecated since IPython 7.14, please import from IPython display\n",
       "  from IPython.core.display import display, HTML\n"
      ]
     },
@@ -130,7 +130,6 @@
     "gray_images = {\n",
     "        \"cat\":rgb2gray(img_as_float(data.chelsea())),\n",
     "        \"astro\":rgb2gray(img_as_float(data.astronaut())),\n",
-    "        \"line\": rgb2gray(img_as_float(Image.open('line.jpeg'))),\n",
     "        \"camera\":data.camera(),\n",
     "        \"coin\": data.coins(),\n",
     "        \"clock\":data.clock(),\n",
@@ -397,7 +396,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 21,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -479,7 +478,7 @@
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "3468cf44f3e4421296a63af940c78d21",
+       "model_id": "40f7f6318beb4d248fc1b3aa82096324",
        "version_major": 2,
        "version_minor": 0
       },
@@ -507,7 +506,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 12,
    "metadata": {
     "pycharm": {
      "name": "#%%\n"
@@ -517,7 +516,7 @@
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "248d76e7698e4f3f90a42587e6c4a66b",
+       "model_id": "3ec2852728b145a0b405eb6c24ef4e9b",
        "version_major": 2,
        "version_minor": 0
       },
@@ -637,12 +636,12 @@
     "  return (original_shape[0]*original_shape[1]*original_shape[2])//(original_shape[0] + 3*original_shape[1] + 1)\n",
     "\n",
     "\n",
-    "list_widget = widgets.Dropdown(options=list(color_images.keys()))\n",
+    "list_widget_color = widgets.Dropdown(options=list(color_images.keys()))\n",
     "int_slider_widget = widgets.IntSlider(min=1,max=compute_k_max_color_images('cat'))\n",
     "def update_k_max_color(*args):\n",
-    "  img_name=list_widget.value\n",
+    "  img_name=list_widget_color.value\n",
     "  int_slider_widget.max = compute_k_max_color_images(img_name)\n",
-    "list_widget.observe(update_k_max_color,'value')"
+    "list_widget_color.observe(update_k_max_color,'value')"
    ]
   },
   {
@@ -668,7 +667,7 @@
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "cd415e4147de4fe5bfe269eefe92062a",
+       "model_id": "eaba6da4395e43d4ab429b4cca24ad3f",
        "version_major": 2,
        "version_minor": 0
       },
@@ -681,7 +680,7 @@
     }
    ],
    "source": [
-    "interact(compress_show_color_images_reshape,img_name=list_widget,k=int_slider_widget);"
+    "interact(compress_show_color_images_reshape,img_name=list_widget_color,k=int_slider_widget);"
    ]
   },
   {
@@ -759,12 +758,12 @@
     "  return (original_shape[0]*original_shape[1]*original_shape[2])// (3*(original_shape[0] + original_shape[1] + 1))\n",
     "\n",
     "\n",
-    "list_widget = widgets.Dropdown(options=list(color_images.keys()))\n",
+    "list_widget_color = widgets.Dropdown(options=list(color_images.keys()))\n",
     "int_slider_widget = widgets.IntSlider(min=1,max=compute_k_max_color_images_layers('cat'))\n",
     "def update_k_max_color_layers(*args):\n",
-    "  img_name=list_widget.value\n",
+    "  img_name=list_widget_color.value\n",
     "  int_slider_widget.max = compute_k_max_color_images_layers(img_name)\n",
-    "list_widget.observe(update_k_max_color_layers,'value')"
+    "list_widget_color.observe(update_k_max_color_layers,'value')"
    ]
   },
   {
@@ -779,7 +778,7 @@
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "9e15fb8aaa9e44e880a8d7fa9e7fed1d",
+       "model_id": "5089ca8c1cb845478b279185787ad156",
        "version_major": 2,
        "version_minor": 0
       },
@@ -792,7 +791,7 @@
     }
    ],
    "source": [
-    "interact(compress_show_color_images_layer,img_name=list_widget,k=int_slider_widget);"
+    "interact(compress_show_color_images_layer,img_name=list_widget_color,k=int_slider_widget);"
    ]
   }
  ],
diff --git a/line.jpeg b/line.jpeg
deleted file mode 100644
index 44539dd..0000000
Binary files a/line.jpeg and /dev/null differ