diff --git a/exp/color_sampler.py b/exp/color_sampler.py
--- a/exp/color_sampler.py
+++ b/exp/color_sampler.py
@@ -15,12 +15,8 @@ from analyzer.epoint import EPoint
 from analyzer.corners import Corners
 
 
-dirname=sys.argv[1]
-annotations=sys.argv[2]
-
-
 class Sampler:
-	def __init__(self):
+	def __init__(self,dirname,annotations):
 		self.dirname=dirname
 		self.annotations=DataFile(annotations)
 		self.filenames=[f for f in sorted(os.listdir(self.dirname)) if f.endswith(".jpg")]
@@ -163,4 +159,7 @@ class DataFile(MutableMapping):
 
 
 if __name__=="__main__":
-	s=Sampler()
+	dirname=sys.argv[1]
+	annotations=sys.argv[2]
+
+	s=Sampler(dirname,annotations)
diff --git a/exp/createsamples.py b/exp/createsamples.py
--- a/exp/createsamples.py
+++ b/exp/createsamples.py
@@ -1,15 +1,20 @@
+import sys
+sys.path.append("../src")
+
 import os
-import sys
 import random
 
 import PIL.Image
 import PIL.ImageDraw
 import PIL
 
+from diagram import createDiagram
 from color_sampler import DataFile
 
 
 finalPosCount=5000
+empty=True
+perspective=False
 random.seed(361)
 inputDir=sys.argv[1]
 outputDir=sys.argv[2]
@@ -71,12 +76,36 @@ def extract(image,cornerList,i,filename)
 	print(outputPath,1,0,0,x2-x1,y2-y1)
 
 
-for (filename,cornerList) in annotations.items():
-	path=os.path.join(inputDir, filename)
-	if not os.path.isfile(path):
-		print("{0} not found, ignored".format(path))
-		continue
+def generate(background,i,outputDir):
+	bg=background.copy()
+	img=createDiagram([[]])
+	maxSize=min(*img.size,*bg.size)
+	size=random.randint(min(80,maxSize),maxSize)
+	img=img.resize((size,size),PIL.Image.BICUBIC)
+	wRange=bg.size[0]-img.size[0]
+	hRange=bg.size[1]-img.size[1]
+	x=random.randint(0,wRange)
+	y=random.randint(0,hRange)
+	bg.paste(img,(x,y))
+	outputPath=os.path.join(outputDir,"{0:04}.jpg".format(i))
+	bg.save(outputPath)
+	rect=[
+		max(x-5,0),
+		max(y-5,0),
+		img.size[0]+min(10,bg.size[0]-x),
+		img.size[1]+min(10,bg.size[1]-y)
+	]
+	print(outputPath,1,*rect,flush=True)
 
-	img=PIL.Image.open(path)
-	for i in range(multiple):
-		extract(img,cornerList,i,filename)
+# for (filename,cornerList) in annotations.items():
+# 	path=os.path.join(inputDir, filename)
+# 	if not os.path.isfile(path):
+# 		print("{0} not found, ignored".format(path))
+# 		continue
+#
+# 	img=PIL.Image.open(path)
+# 	for i in range(multiple):
+# 		extract(img,cornerList,i,filename)
+
+for i in range(finalPosCount):
+	generate(pickRandom(),i,outputDir)
diff --git a/exp/diagram.py b/exp/diagram.py
new file mode 100644
--- /dev/null
+++ b/exp/diagram.py
@@ -0,0 +1,40 @@
+import PIL.Image
+import PIL.ImageDraw
+
+
+width=360
+height=width
+padding=12
+stoneSize=(width-2*padding)/18
+yellow=(255,200,0)
+white=(255,255,255)
+black=(0,0,0)
+
+
+def createDiagram(board):
+	img=PIL.Image.new("RGB",(width,height),yellow)
+	canvas=PIL.ImageDraw.Draw(img)
+
+	# grid
+	for i in range(19):
+		canvas.line((padding,padding+i*stoneSize,width-padding,padding+i*stoneSize),black,1)
+		canvas.line((padding+i*stoneSize,padding,padding+i*stoneSize,height-padding),black,1)
+
+	# stars
+	radius=2
+	for r in range(3,19,6):
+		for c in range(3,19,6):
+			x=c*stoneSize+padding
+			y=r*stoneSize+padding
+			canvas.ellipse((x-radius,y-radius,x+radius,y+radius),black)
+
+	# stones
+	radius=stoneSize/2
+	for (r,row) in enumerate(board):
+		for (c,color) in enumerate(row):
+			if color=="X" or color=="O":
+				x=c*stoneSize+padding
+				y=r*stoneSize+padding
+				canvas.ellipse((x-radius,y-radius,x+radius,y+radius),black if color=="X" else white)
+
+	return img
\ No newline at end of file