tile.py

"""
Created on Fri May 01 19:17:23 2015
@author: jyoshida-sci
"""

import cv2
import numpy as np
import itertools


height = 440
width = 512


#generating images#################
    
for i, j in itertools.product(range(4), range(4)):

    img = np.ones((height,width,1), np.uint8)*255
    msg="{0}-{1}".format(i,j)
    location=(100,200)
  
    fontface=cv2.FONT_HERSHEY_PLAIN
    fontscale=10.0
    color=(0,0,0)#black  
    cv2.putText(img,msg,location,fontface,fontscale,color)  
    cv2.imwrite("{0}-{1}.bmp".format(i,j), img)
    
    

#joining images####################

bigimg = np.ones((height*4,width*4), np.uint8)*255

for i, j in itertools.product(range(4), range(4)):
    
    sx=i*width
    sy=j*height
    ex=(i+1)*width
    ey=(j+1)*height

    filename="{0}-{1}.bmp".format(i,j)
    img = cv2.imread(filename,cv2.CV_LOAD_IMAGE_GRAYSCALE)
    bigimg[sy:ey,sx:ex] = img.copy()

  
cv2.imwrite("bigimg.bmp",bigimg)