OneEye Changeset - 002858d37174

Changeset - 002858d37174

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Laman - 6 years ago 2018-12-16 18:13:04

sampler: loading and saving board annotations

2 files changed with 49 insertions and 3 deletions:

exp/color_sampler.py

src/analyzer/corners.py

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exp/color_sampler.py

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 import sys
 sys.path.append("../src")
 import os
 import json
 import gzip
 from collections.abc import MutableMapping
 import tkinter as tk
-from tkinter import LEFT,X,N,S,E,W
 from tkinter import LEFT,N,S,E,W
 from colorsys import rgb_to_hsv
 from PIL import Image,ImageTk
 from analyzer.epoint import EPoint
 from analyzer.corners import Corners
 class Sampler:
 	def __init__(self):
 		self.dirname="../images"
 		self.annotations=DataFile("annotations.json.gz")
 		self.filenames=[f for f in os.listdir(self.dirname) if f.endswith(".jpg")]
 		self.k=0
 		self.img=None
 		self.photo=None
 		self.letter="_"
 		self.hsv=(0,0,0)
 		self.pos=(0,0)
 		self.corners=Corners()
 		self._dirty=False
 		self._createGUI()
 	def sample(self,e):
 		try:
 			(r,g,b)=(x/255 for x in self.img.getpixel((e.x,e.y)))
 		except IndexError:
 			return
 		(h,s,v)=map(lambda x: round(x,3), rgb_to_hsv(r,g,b))
 		self.hsv=(h,s,v)
 		self.pos=(e.x,e.y)
 		self.posLabel.configure(text="({0},{1})".format(e.x,e.y))
 		self.colorLabel.configure(text="HSV: ({0}, {1}, {2})".format(round(h*360),s,v))
 	def printSample(self):
 		print("\t".join(map(str, (self.filenames[self.k],*self.pos,self.letter,*self.hsv))))
 	def showImage(self):
 		self.img=Image.open(os.path.join(self.dirname,self.filenames[self.k]))
 		(w,h)=self.img.size
 		self.photo=ImageTk.PhotoImage(self.img)
 		self.canvas.delete("all")
 		self.canvas.create_image(0,0,image=self.photo,anchor="nw")
 		self.canvas.configure(width=w,height=h)
 		self.corners=Corners(self.annotations.get(self.filenames[self.k]) or [])
 		self._markCorners()
 	def switchImage(self,step):
 		self.save()
 		n=len(self.filenames)
 		self.k=(self.k+step+n)%n
 		self.showImage()
 	def setLetter(self,c):
 		self.letter=c
 		self.letterLabel.configure(text="Letter: {0}".format(c))
 	def addCorner(self,e):
 		self.corners.add(e.x,e.y)
 		self.annotations[self.filenames[self.k]]=list(self.corners)
 		self._dirty=True
 		self._markCorners()
 	def save(self):
 		if self._dirty:
 			self.annotations.save()
 			self.dirty=False
 	def _createGUI(self):
 		root=tk.Tk()
 		frame=tk.Frame(root)
 		frame.grid(column=0,row=0,sticky=(N,S,E,W))
 		self.canvas=tk.Canvas(frame)
 		self.canvas.grid(row=1,column=0)
 		bar=self._createBar(frame)
 		bar.grid(row=2,column=0,sticky=(E,W))
 		self.showImage()
 		self.canvas.bind('<1>',lambda e: self.printSample())
 		self.canvas.bind('<3>',self.addCorner)
 		self.canvas.bind("<Motion>",self.sample)
 		root.bind("<Left>",lambda e: self.switchImage(-1))
 		root.bind("<Right>",lambda e: self.switchImage(1))
 		root.bind("<b>",lambda e: self.setLetter("b"))
 		root.bind("<e>",lambda e: self.setLetter("e"))
 		root.bind("<w>",lambda e: self.setLetter("w"))
 		root.mainloop()
 	def _createBar(self,frame):
 		bar=tk.Frame(frame,height=20,borderwidth=1,relief="sunken")
 		self.letterLabel=tk.Label(bar,width=8,text="Letter: _")
 		self.letterLabel.pack(side=LEFT)
 		self.posLabel=tk.Label(bar,width=16,text="(,)")
 		self.posLabel.pack(side=LEFT)
 		self.colorLabel=tk.Label(bar,width=20,text="HSV: (,,)")
 		self.colorLabel.pack(side=LEFT)
 		return bar
 	def _markCorners(self):
 		self.canvas.delete("mark")
 		for c in self.corners:
 			(x,y)=(c.x,c.y)
 			self.canvas.create_oval(x-2,y-2,x+2,y+2,fill="#00ff00",tags="mark")
 		if self.corners.canonizeOrder():
 			(a,b,c,d)=self.corners
 			self.canvas.create_line(a.x,a.y,b.x,b.y,fill="#00ff00",tags="mark")
 			self.canvas.create_line(b.x,b.y,c.x,c.y,fill="#00ff00",tags="mark")
 			self.canvas.create_line(c.x,c.y,d.x,d.y,fill="#00ff00",tags="mark")
 			self.canvas.create_line(d.x,d.y,a.x,a.y,fill="#00ff00",tags="mark")
 class DataFile(MutableMapping):
 	def __init__(self,filename):
 		self.filename=filename
 		try:
 			with gzip.open(filename,mode="rt",encoding="utf8") as f:
 				self._data=json.load(f,object_hook=self.deserialize)
 		except OSError:
 			self._data=dict()
 	def save(self):
 		with gzip.open(self.filename,mode="wt",encoding="utf8") as f:
 			json.dump(self._data,f,default=self.serialize,indent="\t")
 	def serialize(self,obj):
 		if isinstance(obj,EPoint):
 			return {"type": "EPoint", "val": [obj.x,obj.y]}
 		raise TypeError(obj)
 	def deserialize(self,obj):
 		if obj.get("type")!="EPoint": return obj
 		return EPoint(*obj["val"])
 	def __getitem__(self, key): return self._data[key]
 	def __setitem__(self, key, val): self._data[key]=val
 	def __delitem__(self, key): del self._data[key]
 	def __iter__(self): return iter(self._data)
 	def __len__(self): return len(self._data)
 s=Sampler()

src/analyzer/corners.py

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 import logging
 from .epoint import EPoint
 log=logging.getLogger(__name__)
 class Corners:
 	def __init__(self):
 		self._corners=[]
 	def __init__(self,cornerList=[]):
 		self._corners=cornerList[:]
 	## Adds a new corner if there are less than four, replaces the closest otherwise.
 	def add(self,x,y):
 		a=EPoint(x,y)
 		# for i,c in enumerate(self.corners): # move an improperly placed point
 			# if a.dist(c)<20:
 				# self.corners[i]=a
 				# return
 		if len(self._corners)<4: # add a new corner
 			self._corners.append(a)
 		if len(self._corners)<4:
 			return
 		index,minDist=0,float('inf') # replace the corner closest to the clicked point
 		for i,c in enumerate(self._corners):
 			if a.dist(c)<minDist:
 				index,minDist=i,a.dist(c)
 		self._corners[index]=a
 	## Order the corners (0,1,2,3) so they make a quadrangle with vertices KLMN in counter-clockwise order, K being in the upper left.
+	#

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