#-*- coding: UTF-8 -*- 
 
import numpy as np
from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
 
 
def draw_test():
 
 #生成深藍(lán)色繪圖畫布
 array = np.ndarray((480, 640, 3), np.uint8)
 
 array[:, :, 0] = 0
 array[:, :, 1] = 0
 array[:, :, 2] = 100
 
 image = Image.fromarray(array)
 
 #創(chuàng)建繪制對象
 draw = ImageDraw.Draw(image)
 
 #繪制直線
 draw.line((20, 20, 150, 150), 'cyan')
 
 #繪制矩形
 draw.rectangle((100, 200, 300, 400), 'black', 'red')
 
 #繪制弧
 draw.arc((100, 200, 300, 400), 0, 180, 'yellow')
 draw.arc((100, 200, 300, 400), -90, 0, 'green')
 
 #繪制弦
 draw.chord((350, 50, 500, 200), 0, 120, 'khaki', 'orange')
 
 #繪制圓餅圖
 draw.pieslice((350, 50, 500, 200), -150, -30, 'pink', 'crimson')
 
 #繪制橢圓
 draw.ellipse((350, 300, 500, 400), 'yellowgreen', 'wheat')
 #外切矩形為正方形時橢圓即為圓
 draw.ellipse((550, 50, 600, 100), 'seagreen', 'skyblue') 
 
 #繪制多邊形
 draw.polygon((150, 180, 200, 180, 250, 120, 230, 90, 130, 100), 'olive', 'hotpink')
 
 #繪制文本
 font = ImageFont.truetype("consola.ttf", 40, encoding="unic")#設(shè)置字體
 draw.text((100, 50), u'Hello World', 'fuchsia', font)
 
 image.show()
 
 return

import cv2
import numpy as np
import os
 
class Drawing(object):
 """
 使用opencv繪制圖形，支持直線，矩形，圓形，橢圓，多邊形以及被標(biāo)注文字添加
 """
 chart_list = ['line', 'rectangle', 'circle', 'ellipse', 'polylines', 'puttext']
 
 def __init__(self, src_img, dst_img, chart, dict_args):
  self.src_img = os.path.normpath(src_img)
  self.dst_img = os.path.normpath(dst_img)
  self.chart = chart
  self.dict_args = dict_args
  # 顏色不傳默認(rèn)為紅色
  self.color = dict_args['color'] if dict_args.has_key('color') else (0,0,255)
  # 線條粗細(xì)不傳默認(rèn)為 2
  self.thickness = dict_args['thickness'] if dict_args.has_key('thickness') else 2
 
 def handle(self):
  # 導(dǎo)入圖片
  self.src_img = cv2.imread(self.src_img)
  if self.chart not in self.chart_list:
   print 'must input your right parameter'
   return
  if self.chart == 'line':
   # 畫直線
   self.start = self.dict_args['start']
   self.end = self.dict_args['end']
   self.draw_line()
  elif self.chart == 'rectangle':
   # 畫矩形
   self.top_left = self.dict_args['top_left']
   self.bottom_right = self.dict_args['bottom_right']
   self.draw_rectangle()
  elif self.chart == 'circle':
   # 畫圓形
   self.center = self.dict_args['center']
   self.radius = self.dict_args['radius']
   self.draw_circle()
  elif self.chart == 'ellipse':
   # 畫橢圓
   self.center = self.dict_args['center']
   self.axes = self.dict_args['axes']
   # 旋轉(zhuǎn)角度，起始角度，終止角度 可不傳參，使用默認(rèn)值
   self.angle = self.dict_args['angle'] if self.dict_args.has_key('angle') else 0
   self.startangle = self.dict_args['startangle'] if self.dict_args.has_key('startangle') else 0
   self.endangle = self.dict_args['endangle'] if self.dict_args.has_key('endangle') else 360
   self.draw_ellipse()
  elif self.chart == 'polylines':
   # 畫多邊形
   if not isinstance(self.dict_args['points'], list):
    self.pts = list(self.dict_args['points'])
   self.pts = np.array(self.dict_args['points'], np.int32)
   self.close = self.dict_args['close'] if self.dict_args.has_key('close') else True
   self.draw_polylines()
  else:
   # 標(biāo)注文本
   self.text = self.dict_args['text']
   self.position = self.dict_args['position']
   # 字體，文字大小 可不傳參，使用默認(rèn)值
   self.font = self.dict_args['font'] if self.dict_args.has_key('font') else cv2.FONT_HERSHEY_SIMPLEX
   self.size = self.dict_args['size'] if self.dict_args.has_key('size') else 1
   self.add_text()
  cv2.imwrite(self.dst_img, self.src_img)
 
 def draw_line(self):
  # 劃線
  # 輸入?yún)?shù)分別為圖像，開始坐標(biāo)，結(jié)束坐標(biāo)，顏色數(shù)組，粗細(xì)
  cv2.line(self.src_img, self.start, self.end, self.color, self.thickness)
 
 def draw_rectangle(self):
  # 畫矩形
  # 輸入?yún)?shù)分別為圖像、左上角坐標(biāo)、右下角坐標(biāo)、顏色數(shù)組、粗細(xì)
  cv2.rectangle(self.src_img, self.top_left, self.bottom_right, self.color, self.thickness)
 
 def draw_circle(self):
  # 畫圓形
  # 輸入?yún)?shù)為圖像，圓心，半徑，線條顏色，粗細(xì)
  cv2.circle(self.src_img, self.center, self.radius, self.color, self.thickness)
 
 def draw_ellipse(self):
  # 畫橢圓
  # 輸入?yún)?shù)為圖像，中心，（長軸，短軸），旋轉(zhuǎn)角度，起始角度，終止角度，線條顏色，粗細(xì)
  cv2.ellipse(self.src_img, self.center, self.axes, self.angle, self.startangle,self.endangle, self.color, self.thickness)
 
 def draw_polylines(self):
  # 畫多邊形
  # 輸入?yún)?shù)為圖像，多邊形各個頂點坐標(biāo)，是否連成封閉圖形，線的顏色，粗細(xì)
  cv2.polylines(self.src_img, [self.pts], self.close, self.color, self.thickness)
 
 def add_text(self):
  # 標(biāo)注文本
  # 輸入?yún)?shù)為圖像、文本、位置、字體、大小、顏色數(shù)組、粗細(xì)
  cv2.putText(self.src_img, self.text, self.position, self.font, self.size, self.color, self.thickness)