Colaboratory를 통해 생성됨

Author: ndb796

Diff for: 11. OpenCV Tracker/OpenCV Tracker.ipynb

@@ -0,0 +1,98 @@
+{
+  "nbformat": 4,
+  "nbformat_minor": 0,
+  "metadata": {
+    "colab": {
+      "name": "OpenCV Tracker",
+      "version": "0.3.2",
+      "provenance": [],
+      "include_colab_link": true
+    },
+    "kernelspec": {
+      "name": "python3",
+      "display_name": "Python 3"
+    }
+  },
+  "cells": [
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "view-in-github",
+        "colab_type": "text"
+      },
+      "source": [
+        "<a href=\"https://colab.research.google.com/github/ndb796/Python-Data-Analysis-and-Image-Processing-Tutorial/blob/master/11.%20OpenCV%20Tracker/OpenCV%20Tracker.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "o9DKbjierGO_",
+        "colab_type": "text"
+      },
+      "source": [
+        "## OpenCV Tracker\n",
+        "[강의 노트](https://github.com/ndb796/Python-Data-Analysis-and-Image-Processing-Tutorial/blob/master/11.%20OpenCV%20Tracker/Python%20%EB%8D%B0%EC%9D%B4%ED%84%B0%20%EB%B6%84%EC%84%9D%EA%B3%BC%20%EC%9D%B4%EB%AF%B8%EC%A7%80%20%EC%B2%98%EB%A6%AC%20-%20OpenCV%20Tracker.pdf)"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "JOEp9Hg0rI8a",
+        "colab_type": "text"
+      },
+      "source": [
+        "cv2.createTracker(track_bar, name, window_name, value, count, on_change): Tracker를 생성하는 함수\n",
+        "\n",
+        "- value: 초기 값\n",
+        "- count: Max 값 (Min: 0)\n",
+        "- on_change: 값이 변경될 때 호출되는 Callback 함수\n",
+        "\n",
+        "cv2.getTrackerPos(track_bar, name, window_name): Tracker로부터 값을 얻어 오는 함수"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "6XrNbFUzr1vy",
+        "colab_type": "text"
+      },
+      "source": [
+        "### OpenCV Tracker 실습\n",
+        "\n",
+        "- *본 실습은 PyCharm등의 **개인 개발환경에서 진행**하세요.*"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "metadata": {
+        "id": "knbs8aM7rmyD",
+        "colab_type": "code",
+        "colab": {}
+      },
+      "source": [
+        "import cv2\n",
+        "import numpy as np\n",
+        "\n",
+        "def change_color(x):\n",
+        "  r = cv2.getTrackbarPos(\"R\", \"Image\")\n",
+        "  g = cv2.getTrackbarPos(\"G\", \"Image\")\n",
+        "  b = cv2.getTrackbarPos(\"B\", \"Image\")\n",
+        "  image[:] = [b, g, r]\n",
+        "  cv2.imshow('Image', image)\n",
+        "  \n",
+        "image = np.zeros((600, 400, 3), np.uint8)\n",
+        "cv2.namedWindow(\"Image\")\n",
+        "\n",
+        "cv2.createTrackbar(\"R\", \"Image\", 0, 255, change_color)\n",
+        "cv2.createTrackbar(\"G\", \"Image\", 0, 255, change_color)\n",
+        "cv2.createTrackbar(\"B\", \"Image\", 0, 255, change_color)\n",
+        "\n",
+        "cv2.imshow('Image', image)\n",
+        "cv2.waitKey(0)"
+      ],
+      "execution_count": 0,
+      "outputs": []
+    }
+  ]
+}