{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "import cv2\n",
    "import numpy as np"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "3.3.0\n"
     ]
    }
   ],
   "source": [
    "print(cv2.__version__)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "img = np.full((210, 425, 3), 128, dtype=np.uint8)\n",
    "\n",
    "cv2.rectangle(img, (50, 10), (125, 60), (255, 0, 0))\n",
    "cv2.rectangle(img, (50, 80), (125, 130), (0, 255, 0), thickness=-1)\n",
    "cv2.rectangle(img, (50, 150), (125, 200), (0, 0, 255), thickness=-1)\n",
    "cv2.rectangle(img, (50, 150), (125, 200), (255, 255, 0))\n",
    "\n",
    "cv2.rectangle(img, (175, 10), (250, 60), (255, 255, 255), thickness=8, lineType=cv2.LINE_4)\n",
    "cv2.line(img, (175, 10), (250, 60), (0, 0, 0), thickness=1, lineType=cv2.LINE_4)\n",
    "cv2.rectangle(img, (175, 80), (250, 130), (255, 255, 255), thickness=8, lineType=cv2.LINE_8)\n",
    "cv2.line(img, (175, 80), (250, 130), (0, 0, 0), thickness=1, lineType=cv2.LINE_8)\n",
    "cv2.rectangle(img, (175, 150), (250, 200), (255, 255, 255), thickness=8, lineType=cv2.LINE_AA)\n",
    "cv2.line(img, (175, 150), (250, 200), (0, 0, 0), thickness=1, lineType=cv2.LINE_AA)\n",
    "\n",
    "cv2.rectangle(img, (600, 20), (750, 120), (0, 0, 0), lineType=cv2.LINE_AA, shift=1)\n",
    "cv2.rectangle(img, (601, 160), (751, 260), (0, 0, 0), lineType=cv2.LINE_AA, shift=1)\n",
    "cv2.rectangle(img, (602, 300), (752, 400), (0, 0, 0), lineType=cv2.LINE_AA, shift=1)\n",
    "\n",
    "cv2.imwrite('data/dst/opencv_draw_argument.png', img)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "True\n"
     ]
    }
   ],
   "source": [
    "img_rect = cv2.rectangle(img, (10, 10), (110, 60), (255, 0, 0))\n",
    "print(img is img_rect)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "img = np.full((210, 425, 3), 128, dtype=np.uint8)\n",
    "\n",
    "cv2.line(img, (50, 10), (125, 60), (255, 0, 0))\n",
    "cv2.line(img, (50, 60), (125, 10), (0, 255, 255), thickness=4, lineType=cv2.LINE_AA)\n",
    "\n",
    "cv2.arrowedLine(img, (50, 80), (125, 130), (0, 255, 0), thickness=4)\n",
    "cv2.arrowedLine(img, (50, 130), (125, 80), (255, 0, 255), tipLength=0.3)\n",
    "\n",
    "cv2.rectangle(img, (50, 150), (125, 200), (255, 255, 0))\n",
    "\n",
    "cv2.circle(img, (190, 35), 15, (255, 255, 255), thickness=-1)\n",
    "cv2.circle(img, (240, 35), 20, (0, 0, 0), thickness=3, lineType=cv2.LINE_AA)\n",
    "\n",
    "cv2.ellipse(img, ((190, 105), (20, 50), 0), (255, 255, 255))\n",
    "cv2.ellipse(img, ((240, 105), (20, 50), 30), (0, 0, 0), thickness=-1)\n",
    "\n",
    "cv2.ellipse(img, (190, 175), (10, 25), 0, 0, 270, (255, 255, 255))\n",
    "cv2.ellipse(img, (240, 175), (10, 25), 30, 0, 270, (0, 0, 0), thickness=-1)\n",
    "\n",
    "cv2.drawMarker(img, (300, 20), (255, 0, 0))\n",
    "cv2.drawMarker(img, (337, 20), (0, 255, 0), markerType=cv2.MARKER_TILTED_CROSS, markerSize=15)\n",
    "cv2.drawMarker(img, (375, 20), (0, 0, 255), markerType=cv2.MARKER_STAR, markerSize=10)\n",
    "\n",
    "cv2.drawMarker(img, (300, 50), (0, 255, 255), markerType=cv2.MARKER_DIAMOND)\n",
    "cv2.drawMarker(img, (337, 50), (255, 0, 255), markerType=cv2.MARKER_SQUARE, markerSize=15)\n",
    "cv2.drawMarker(img, (375, 50), (255, 255, 0), markerType=cv2.MARKER_TRIANGLE_UP, markerSize=10)\n",
    "\n",
    "pts = np.array(((300, 80), (300, 130), (335, 130)))\n",
    "cv2.polylines(img, [pts], True, (255, 255, 255), thickness=2)\n",
    "\n",
    "pts = np.array(((335, 80), (375, 80), (375, 130)))\n",
    "cv2.fillPoly(img, [pts], (0, 0, 0))\n",
    "\n",
    "cv2.putText(img, 'nkmk', (300, 170), cv2.FONT_HERSHEY_SIMPLEX, 1.0, (255, 255, 255), thickness=2)\n",
    "cv2.putText(img, 'nkmk', (300, 195), cv2.FONT_HERSHEY_COMPLEX, 0.8, (0, 0, 0), lineType=cv2.LINE_AA)\n",
    "\n",
    "cv2.imwrite('data/dst/opencv_draw_etc.png', img)"
   ]
  }
 ],
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