![3.程式碼
*將 handwriting-zh_TW 轉換到 model.pickle 執行
from struct import unpack_from, calcsize
import sys
import pickle
from itertools import takewhile, starmap, repeat
from io import BytesIO
def binary_file_parser(fn):
get_next=lambdafmt:unpack_from(fmt,sio.read(calcsize(fmt)))
buf=open(fn,"rb").read()
sio=BytesIO(buf)
return buf,get_next
def main(fn, freq=None):
MAGIC=0xef71821
buf,get_next=binary_file_parser(fn)
(magic,version,nsize)=get_next("III")
assert magic^MAGIC==len(buf)
if freq:
freq_chars=set(open(freq,"r",encoding="big5").read())
model=[]
for i in range(nsize):
(cs,bias)=get_next("16sf")
character=cs.rstrip(b"x00").decode("utf8")
w=sorted(takewhile((-1, 0.0).__ne__,starmap(get_next,
repeat(("if",)))))
if not freq or character in freq_chars:
model.append((character,bias, w))
pickle.dump(model,open("model.pickle","wb"))
main("handwriting-zh_TW.model")
print("modelconverted")](https://image.slidesharecdn.com/random-150123005414-conversion-gate01/85/-5-320.jpg)
![--------------------------------------------------------
*製作手寫板並比對辨識輸出
# *encoding=utf-8
import sys
import pickle
from hwr import recognize
from tkinter import *
from tkinter.scrolledtextimport *
from itertools import chain
class WritePad:
def autorecog(self):
if self.strokes:
self.idle_count+=1
if self.idle_count>=5:
self.charlist=recognize(self.model,self.dim,
self.strokes)
self.listbox.delete(0,END)
self.listbox.insert(END,*(c for f,c in self.charlist))
self.text.insert(INSERT,self.charlist[0][1])
self.wa_reset()
self.write_area.after(100,self.autorecog)
def selc(self,event):
sel=self.listbox.curselection()
if sel:
c=self.charlist[int(sel[0])][1]
self.text.delete(INSERT+"-1c")
self.text.insert(INSERT,c)
self.text.focus_set()
def wa_reset(self):
self.write_area.delete(ALL)
w,h=self.dim[0]-1,self.dim[1]-1
vlines=((w*i//3+2,0,w*i//3+2,h) for i in range(4))](https://image.slidesharecdn.com/random-150123005414-conversion-gate01/85/-6-320.jpg)
![hlines=((0,h*i//3+2,w,h*i//3+2) for i in range(4))
for var in chain(vlines, hlines):
self.write_area.create_line(*var, fill="#e00000")
self.text.focus_set()
self.strokes,self.idle_count,self.s=[],0, None
def __init__(self,master, model,width=300, height=300):
self.model,self.dim=model,(width,height)
self.text=ScrolledText(master,height=4, width=24,
font=("defaultgui",40))
self.text.pack()
Frame(master, height=height//20).pack(fill="x",expand=1)
Frame(master, height=height,
width=width//3).pack(side=LEFT)
self.write_area=Canvas(master,width=width, height=height,
bg="#FFE")
self.write_area.pack(side=LEFT)
self.write_area.bind("<Motion>",self.motion)
self.write_area.bind("<1>",self.b1down)
self.write_area.bind("<ButtonRelease-1>",self.b1up)
Frame(master, height=height,
width=width//15).pack(side=LEFT)
self.listbox= Listbox(master,selectmode=SINGLE,
width=3, height=10, font=("default",22))
self.listbox.bind("<ButtonRelease-1>",self.selc)
self.listbox.pack(side=LEFT)
Frame(master, height=height,
width=width//15).pack(side=LEFT)
f=Frame(height=height)
f.pack(side=LEFT)
bstyle={"width":5, "font":("default",16)} #button style
Button(f, command=lambda :self.text.delete(INSERT+"-1c"),
text="del",**bstyle).pack()
insertf=lambdac: lambda :self.text.insert(INSERT,c)
for c in "，。？！「」n":
Button(f, text=repr(c)[1:-1], command=insertf(c),
**bstyle).pack()](https://image.slidesharecdn.com/random-150123005414-conversion-gate01/85/-7-320.jpg)
![self.charlist=[]
self.wa_reset()
self.write_area.after(200,self.autorecog)
def b1down(self,event):
self.s,self.idle_count=[(event.x,event.y)],0
def b1up(self,event):
if len(self.s)>1:
self.strokes.append(self.s)
self.s,self.idle_count=None,0
def motion(self,event):
if self.s:
event.widget.create_line(self.s[-1][0],self.s[-1][1],
event.x, event.y, width=5.0, smooth=True)
self.s.append((event.x,event.y))
self.idle_count=0
def main():
master = Tk()
WritePad(master,pickle.load(open("model.pickle","rb")))
master.mainloop()
if __name__ == "__main__":
main()](https://image.slidesharecdn.com/random-150123005414-conversion-gate01/85/-8-320.jpg)
樣型識別 期末報告
- 2. 目錄 1. 簡介 2. 使用環境 3. 程式碼 4. 成果展示 5. 結論
- 3. 1.簡介 上次顏色辨識程式改進有些實現上的困難，所以 將 Project 實作改為手寫文字辨識，由於之前沒 有用 python 撰寫程式的經驗，所以藉由此次專 題機會練習 python。 使用者在手寫板上撰寫繁體中文，經過程式比對 資料，辨識並輸出中文字。
- 4. 2.使用環境 ? 使用語言：Python(Ver3.4) ? 下載繁體中文 model handwriting-zh_TW.model .
- 5. 3.程式碼 *將 handwriting-zh_TW 轉換到 model.pickle 執行 from struct import unpack_from, calcsize import sys import pickle from itertools import takewhile, starmap, repeat from io import BytesIO def binary_file_parser(fn): get_next=lambdafmt:unpack_from(fmt,sio.read(calcsize(fmt))) buf=open(fn,"rb").read() sio=BytesIO(buf) return buf,get_next def main(fn, freq=None): MAGIC=0xef71821 buf,get_next=binary_file_parser(fn) (magic,version,nsize)=get_next("III") assert magic^MAGIC==len(buf) if freq: freq_chars=set(open(freq,"r",encoding="big5").read()) model=[] for i in range(nsize): (cs,bias)=get_next("16sf") character=cs.rstrip(b"x00").decode("utf8") w=sorted(takewhile((-1, 0.0).__ne__,starmap(get_next, repeat(("if",))))) if not freq or character in freq_chars: model.append((character,bias, w)) pickle.dump(model,open("model.pickle","wb")) main("handwriting-zh_TW.model") print("modelconverted")
- 6. -------------------------------------------------------- *製作手寫板並比對辨識輸出 # *encoding=utf-8 import sys import pickle from hwr import recognize from tkinter import * from tkinter.scrolledtextimport * from itertools import chain class WritePad: def autorecog(self): if self.strokes: self.idle_count+=1 if self.idle_count>=5: self.charlist=recognize(self.model,self.dim, self.strokes) self.listbox.delete(0,END) self.listbox.insert(END,*(c for f,c in self.charlist)) self.text.insert(INSERT,self.charlist[0][1]) self.wa_reset() self.write_area.after(100,self.autorecog) def selc(self,event): sel=self.listbox.curselection() if sel: c=self.charlist[int(sel[0])][1] self.text.delete(INSERT+"-1c") self.text.insert(INSERT,c) self.text.focus_set() def wa_reset(self): self.write_area.delete(ALL) w,h=self.dim[0]-1,self.dim[1]-1 vlines=((w*i//3+2,0,w*i//3+2,h) for i in range(4))
- 7. hlines=((0,h*i//3+2,w,h*i//3+2) for i in range(4)) for var in chain(vlines, hlines): self.write_area.create_line(*var, fill="#e00000") self.text.focus_set() self.strokes,self.idle_count,self.s=[],0, None def __init__(self,master, model,width=300, height=300): self.model,self.dim=model,(width,height) self.text=ScrolledText(master,height=4, width=24, font=("defaultgui",40)) self.text.pack() Frame(master, height=height//20).pack(fill="x",expand=1) Frame(master, height=height, width=width//3).pack(side=LEFT) self.write_area=Canvas(master,width=width, height=height, bg="#FFE") self.write_area.pack(side=LEFT) self.write_area.bind("<Motion>",self.motion) self.write_area.bind("<1>",self.b1down) self.write_area.bind("<ButtonRelease-1>",self.b1up) Frame(master, height=height, width=width//15).pack(side=LEFT) self.listbox= Listbox(master,selectmode=SINGLE, width=3, height=10, font=("default",22)) self.listbox.bind("<ButtonRelease-1>",self.selc) self.listbox.pack(side=LEFT) Frame(master, height=height, width=width//15).pack(side=LEFT) f=Frame(height=height) f.pack(side=LEFT) bstyle={"width":5, "font":("default",16)} #button style Button(f, command=lambda :self.text.delete(INSERT+"-1c"), text="del",**bstyle).pack() insertf=lambdac: lambda :self.text.insert(INSERT,c) for c in "，。？！「」n": Button(f, text=repr(c)[1:-1], command=insertf(c), **bstyle).pack()
- 8. self.charlist=[] self.wa_reset() self.write_area.after(200,self.autorecog) def b1down(self,event): self.s,self.idle_count=[(event.x,event.y)],0 def b1up(self,event): if len(self.s)>1: self.strokes.append(self.s) self.s,self.idle_count=None,0 def motion(self,event): if self.s: event.widget.create_line(self.s[-1][0],self.s[-1][1], event.x, event.y, width=5.0, smooth=True) self.s.append((event.x,event.y)) self.idle_count=0 def main(): master = Tk() WritePad(master,pickle.load(open("model.pickle","rb"))) master.mainloop() if __name__ == "__main__": main()
- 9. 4.成果展示