update references to images and videos in P1 jupyter notebook

P1.ipynb

@@ -32,15 +32,15 @@
     "---\n",
     "\n",
     "<figure>\n",
-    " <img src=\"line-segments-example.jpg\" width=\"380\" alt=\"Combined Image\" />\n",
+    " <img src=\"examples/line-segments-example.jpg\" width=\"380\" alt=\"Combined Image\" />\n",
     " <figcaption>\n",
     " <p></p> \n",
     " <p style=\"text-align: center;\"> Your output should look something like this (above) after detecting line segments using the helper functions below </p> \n",
     " </figcaption>\n",
     "</figure>\n",
     " <p></p> \n",
     "<figure>\n",
-    " <img src=\"laneLines_thirdPass.jpg\" width=\"380\" alt=\"Combined Image\" />\n",
+    " <img src=\"examples/laneLines_thirdPass.jpg\" width=\"380\" alt=\"Combined Image\" />\n",
     " <figcaption>\n",
     " <p></p> \n",
     " <p style=\"text-align: center;\"> Your goal is to connect/average/extrapolate line segments to get output like this</p> \n",
@@ -275,7 +275,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Build the pipeline and run your solution on all test_images. Make copies into the test_images directory, and you can use the images in your writeup report.\n",
+    "Build the pipeline and run your solution on all test_images. Make copies into the `test_images_output` directory, and you can use the images in your writeup report.\n",
     "\n",
     "Try tuning the various parameters, especially the low and high Canny thresholds as well as the Hough lines parameters."
    ]
@@ -361,8 +361,8 @@
    },
    "outputs": [],
    "source": [
-    "white_output = 'white.mp4'\n",
-    "clip1 = VideoFileClip(\"solidWhiteRight.mp4\")\n",
+    "white_output = 'test_videos_output/solidWhiteRight.mp4'\n",
+    "clip1 = VideoFileClip(\"test_videos/solidWhiteRight.mp4\")\n",
     "white_clip = clip1.fl_image(process_image) #NOTE: this function expects color images!!\n",
     "%time white_clip.write_videofile(white_output, audio=False)"
    ]
@@ -415,8 +415,8 @@
    },
    "outputs": [],
    "source": [
-    "yellow_output = 'yellow.mp4'\n",
-    "clip2 = VideoFileClip('solidYellowLeft.mp4')\n",
+    "yellow_output = 'test_videos_output/solidYellowLeft.mp4'\n",
+    "clip2 = VideoFileClip('test_videos/solidYellowLeft.mp4')\n",
     "yellow_clip = clip2.fl_image(process_image)\n",
     "%time yellow_clip.write_videofile(yellow_output, audio=False)"
    ]
@@ -464,8 +464,8 @@
    },
    "outputs": [],
    "source": [
-    "challenge_output = 'extra.mp4'\n",
-    "clip2 = VideoFileClip('challenge.mp4')\n",
+    "challenge_output = 'test_videos_output/challenge.mp4'\n",
+    "clip2 = VideoFileClip('test_videos/challenge.mp4')\n",
     "challenge_clip = clip2.fl_image(process_image)\n",
     "%time challenge_clip.write_videofile(challenge_output, audio=False)"
    ]