Python tkinter实现图片标注功能(完整代码)

.tkinter

tkinter是Python下面向tk的图形界面接口库，可以方便地进行图形界面设计和交互操作编程。tkinter的优点是简单易用、与Python的结合度好。tkinter在Python 3.x下默认集成，不需要额外的安装操作；不足之处为缺少合适的可视化界面设计工具，需要通过代码来完成窗口设计和元素布局。

Python tkinter实现图片标注代码，代码如下所述：

#!/usr/bin/python# -*- coding: UTF-8 -*-import osimport sysif sys.version_info < (3, 0):   import Tkinter as tk # 导入 Tkinter 库  from tkFileDialog import askopenfilename, asksaveasfilenameelse :  import tkinter as tk # 导入 Tkinter 库  from tkinter.filedialog import askopenfilename, asksaveasfilenamefrom PIL import Image, ImageTk, ImageDrawfrom time import sleepimport numpy as npimport cv2 as cvDEF_WIDTH = 1080DEF_HEIGHT = 720IMAGE_HEIGHT = 720FRAME_LEFT_WIDTH = 360# 太小的选定区域我们需要丢弃，防止误操作MINI_RECT_AREA = 20 class RawImageEditor:  def __init__(self, win, img, rects):    #变量X和Y用来记录鼠标左键按下的位置    self.X = tk.IntVar(value=0)    self.Y = tk.IntVar(value=0)    self.sel = False    self.lastDraw = None    self.lastDraws = []    self.imageScale = 1.0    self.dispWidth = DEF_WIDTH # 图片显示区域的最大高度，宽度    self.dispHeight = DEF_HEIGHT    self.rawImage = img    self.calcImageScale(self.rawImage)    self.dispWidth = int(self.imageScale * self.rawImage.width)    self.dispHeight = int(self.imageScale * self.rawImage.height)    # 图片缩放    self.dispImage = self.rawImage.resize((self.dispWidth, self.dispHeight))    # 选择区域    self.selPositions = []    for r in rects :      self.selPositions.append((r[0] * self.imageScale, r[1] * self.imageScale, r[2] * self.imageScale, r[3] * self.imageScale))    #创建顶级组件容器    self.top = tk.Toplevel(win, width=self.dispWidth, height=self.dispHeight)    #不显示最大化、最小化按钮    self.top.overrideredirect(True)    # Make topLevelWindow remain on top until destroyed, or attribute changes.    self.top.attributes('-topmost', 'true')    self.canvas = tk.Canvas(self.top, bg='white', width=self.dispWidth, height=self.dispHeight)    self.tkImage = ImageTk.PhotoImage(self.dispImage)    self.canvas.create_image(self.dispWidth//2, self.dispHeight//2, image=self.tkImage)    for r in self.selPositions :      draw = self.canvas.create_rectangle(r[0], r[1], r[2], r[3], outline='green')      self.lastDraws.append(draw)    #鼠标左键按下的位置    def onLeftButtonDown(event):      self.X.set(event.x)      self.Y.set(event.y)      #开始截图      self.sel = True      #重新绘制已经选择的区域      for draw in self.lastDraws :        self.canvas.delete(draw)      self.lastDraws = []      for r in self.selPositions :        draw = self.canvas.create_rectangle(r[0], r[1], r[2], r[3], outline='green')        self.lastDraws.append(draw)    self.canvas.bind('<Button-1>', onLeftButtonDown)    #鼠标左键移动，显示选取的区域    def onLeftButtonMove(event):      if not self.sel:        return      try:        #删除刚画完的图形，要不然鼠标移动的时候是黑乎乎的一片矩形        self.canvas.delete(self.lastDraw)      except Exception as e:        pass      self.lastDraw = self.canvas.create_rectangle(self.X.get(), self.Y.get(), event.x, event.y, outline='green')    self.canvas.bind('<B1-Motion>', onLeftButtonMove)    #获取鼠标左键抬起的位置，保存区域截图    def onLeftButtonUp(event):      self.sel = False      sleep(0.1)      #考虑鼠标左键从右下方按下而从左上方抬起的截图      left, right = sorted([self.X.get(), event.x])      top, bottom = sorted([self.Y.get(), event.y])      if (right - left) * (bottom - top) > MINI_RECT_AREA :        self.selPositions.append((left,top,right,bottom))      #self.top.destroy()    #鼠标右键按下    def onRightButtonDown(event):      self.sel = False      self.top.destroy()    self.canvas.bind('<Button-2>', onRightButtonDown)    self.canvas.bind('<ButtonRelease-1>', onLeftButtonUp)    self.canvas.pack(fill=tk.BOTH, expand=tk.YES)  def calcImageScale(self, image) :    w = image.width    h = image.height    self.imageScale = 1.0    # 计算最小的缩放比例，保证原始宽高比    if w > self.dispWidth and h > self.dispHeight :      ws = self.dispWidth * 1.0 / w      hs = self.dispHeight * 1.0 / h      if ws < hs :        self.imageScale = ws      else :        self.imageScale = hs    elif w > self.dispWidth and h < self.dispHeight :      self.imageScale = self.dispWidth * 1.0 / w    elif w < self.dispWidth and h > self.dispHeight :      self.imageScale = self.dispHeight * 1.0 / h  def waitForWindow(self, win) :          win.wait_window(self.top)  def selectedPositions(self) :     # 转换为原始像素位置    realPos = []    for r in self.selPositions :      realPos.append((r[0] / self.imageScale, r[1] / self.imageScale, r[2] / self.imageScale, r[3] / self.imageScale))    return realPos   class MainWin(tk.Tk):  def __init__(self):    if sys.version_info >= (3, 0):      super().__init__()    else :       tk.Tk.__init__(self)    self.title('图像处理工具')    self.geometry('{}x{}'.format(DEF_WIDTH, DEF_HEIGHT))    self.rawImagePath = ''    self.rawImage = None # self.rawImage 原始图像，未经过缩放处理    self.transRawImage = None # self.transRawImage 经过转换处理之后的原始图像，没有经过缩放处理    self.dispImage = None # self.dispImage 显示图像，可能经过缩放处理    self.imageScale = 1.0 # 图片缩放比例，根据缩放比例进行显示的时候的缩放处理，后期选择区域的时候，需要进行缩放还原    self.leftFrameWidth = FRAME_LEFT_WIDTH    self.frameDispHeight = DEF_HEIGHT # 整个窗口的高度    self.labelTextHeight = 20 # 文本标签的高度    self.btnHeight = 40 # 按钮的高度    self.imageDispWidth = IMAGE_HEIGHT # 图片显示区域的最大高度，宽度    self.imageDispHeight = self.frameDispHeight / 2 - self.labelTextHeight * 2    # 选择区域    self.liRect = []    self.rawImageEditor = None    self.setupUI()  def scaleDisplayImage(self, image) :    w = image.width    h = image.height    self.imageScale = 1.0    # 计算最小的缩放比例，保证原始宽高比    if w > self.imageDispWidth and h > self.imageDispHeight :      ws = self.imageDispWidth * 1.0 / w      hs = self.imageDispHeight * 1.0 / h      if ws < hs :        self.imageScale = ws      else :        self.imageScale = hs    elif w > self.imageDispWidth and h < self.imageDispHeight :      self.imageScale = self.imageDispWidth * 1.0 / w    elif w < self.imageDispWidth and h > self.imageDispHeight :      self.imageScale = self.imageDispHeight * 1.0 / h    # 图片缩放    return image.resize((int(self.imageScale * w), int(self.imageScale * h)))   # 打开图片时使用，传值（图）给展示函数  def openAndDisplayImage(self):    self.rawImagePath = self.selectImageFile()    if '' != self.rawImagePath :      self.rawImage = Image.open(self.rawImagePath)      self.rawImage = self.rawImage.convert('RGBA')      self.drawRawImageDisp()  def drawListBox(self):    self.l_box.delete(0,tk.END)    for item in self.liRect:      r = '{},{},{},{}'.format(round(item[0],1), round(item[1],1), round(item[2],1), round(item[3],1))      self.l_box.insert(0, r)  def drawRawImageDisp(self, selItems=[]):          self.dispImage = self.scaleDisplayImage(self.rawImage)    self.dispImage = self.dispImage.convert('RGB')    draw = ImageDraw.Draw(self.dispImage)    for i in range(len(self.liRect)) :      r = self.liRect[i]      if i in selItems :        draw.rectangle((r[0] * self.imageScale, r[1] * self.imageScale, r[2] * self.imageScale, r[3] * self.imageScale), outline = "red")      else :        draw.rectangle((r[0] * self.imageScale, r[1] * self.imageScale, r[2] * self.imageScale, r[3] * self.imageScale), outline = "green")    img = ImageTk.PhotoImage(self.dispImage)    self.image_l_raw.config(image=img)    self.image_l_raw.image = img  def deleteSelectedItemFromListBox(self):    #print(self.l_box.get(self.l_box.curselection()))    idx = self.l_box.curselection()    if len(idx) > 0 :      kp = []      for v in range(len(self.liRect)) :        if v not in idx :          kp.append(self.liRect[v])      self.liRect = kp      self.drawListBox()       self.drawRawImageDisp()   # 打开图片时使用，获得地址  def selectImageFile(self):    path = tk.StringVar()    file_entry = tk.Entry(self, state='readonly', text=path)    path_ = askopenfilename()    path.set(path_)    return file_entry.get()  def rawImageLabelClicked(self, event):    if None != self.rawImage :      if None == self.rawImageEditor :        self.rawImageEditor = RawImageEditor(self, self.rawImage, self.liRect)        self.rawImageEditor.waitForWindow(self.image_l_raw)        self.liRect = self.rawImageEditor.selectedPositions()        self.rawImageEditor = None        self.drawListBox()        self.drawRawImageDisp()  def onRectListboxSelect(self, event):    idx = self.l_box.curselection()    if len(idx) > 0 :      self.drawRawImageDisp(idx)  def drawTransImageDisp(self):          transImage = self.scaleDisplayImage(self.transRawImage)    transImage = transImage.convert('L')    img = ImageTk.PhotoImage(transImage)    self.image_l_trans.config(image=img)    self.image_l_trans.image = img  def doTransRawImage(self):    self.transRawImage = Image.new('L', (self.rawImage.width, self.rawImage.height))    for r in self.liRect :      im = self.rawImage.crop(r)      cv_im = cv.cvtColor(np.asarray(im), cv.COLOR_RGB2BGR)      hsv = cv.cvtColor(cv_im, cv.COLOR_BGR2HSV)      _, _, v = cv.split(hsv)      avg = np.average(v.flatten())      pixels = im.load()      for j in range(im.height) :        for i in range(im.width) :          hv = v[j,i]          if hv < avg * 1.2:            #im.putpixel((i, j), 0) # slow            pixels[i, j] = 0          '''else :            im.putpixel((i, j), (255, 255, 255, 255))'''      self.transRawImage.paste(im, (int(r[0]),int(r[1])), mask = None)     self.drawTransImageDisp()  def onTransRawImageBtnClicked(self):    if None != self.rawImage :      self.doTransRawImage()  def onSaveTransRawImageBtnClicked(self):    if None != self.transRawImage :      ext = os.path.splitext(self.rawImagePath)[-1]      (path,name) = os.path.split(self.rawImagePath)      filename = asksaveasfilename(title = '保存图片', initialfile = name, filetypes = (("jpeg files","*{}".format(ext)), ("all files","*.*")))      if '' != filename :        self.transRawImage.save(filename)       def setupUI(self):    # 左边菜单栏    left_f = tk.Frame(self, height=self.frameDispHeight, width=self.leftFrameWidth)    left_f.pack(side=tk.LEFT)    # 各种功能按钮名称及位置    btnOpen = tk.Button(left_f, text='打开图像', command=self.openAndDisplayImage)    btnOpen.place(y=25, x=30, width=300, height=self.btnHeight)    btnTrans = tk.Button(left_f, text='处理图像', command=self.onTransRawImageBtnClicked)    btnTrans.place(y=85, x=30, width=300, height=self.btnHeight)    l_selRect = tk.Label(left_f, text = '鼠标选定区域')    l_selRect.place(x=0, y=165, width=self.leftFrameWidth, height=self.labelTextHeight)    '''列表'''    self.l_box = tk.Listbox(left_f) # 创建两个列表组件    self.l_box.place(x=0, y=165+self.labelTextHeight, width=self.leftFrameWidth, height=270)    self.l_box.bind('<<ListboxSelect>>', self.onRectListboxSelect)    self.drawListBox()    # 删除选定项    btnDel = tk.Button(left_f, text='删除选定项', command=self.deleteSelectedItemFromListBox)    btnDel.place(y=460, x=30, width=300, height=self.btnHeight)    btnSave = tk.Button(left_f, text='保存结果', command=self.onSaveTransRawImageBtnClicked)    btnSave.place(y=550, x=30, width=300, height=self.btnHeight)    # 右侧图像显示栏    right_f = tk.Frame(self, height=self.frameDispHeight, width=self.imageDispWidth)    right_f.pack(side=tk.RIGHT)    l_rawT = tk.Label(right_f, text = '原始图片')    l_rawT.place(x=0, y=0, width=self.imageDispWidth, height=self.labelTextHeight)    self.image_l_raw = tk.Label(right_f, relief='ridge')    self.image_l_raw.place(x=0, y=self.labelTextHeight, width=self.imageDispWidth, height=self.imageDispHeight)    self.image_l_raw.bind("<Button-1>",self.rawImageLabelClicked)    l_transT = tk.Label(right_f, text = '处理后图片')    l_transT.place(x=0, y=self.labelTextHeight + self.imageDispHeight, width=self.imageDispWidth, height=self.labelTextHeight)    self.image_l_trans = tk.Label(right_f, relief='ridge')    self.image_l_trans.place(x=0, y=self.labelTextHeight + self.imageDispHeight + self.labelTextHeight, width=self.imageDispWidth, height=self.imageDispHeight)if __name__ == '__main__' :  win = MainWin()  # 进入消息循环  win.mainloop()