checkerBoard.py

Basic method which shows how to create a checkerboard of given size in memory.

Basic method which shows how to create a checkerboard of given size in memory. Pixels are written one by one.

import iolink
 
from array import array
 
import timeit
 
 
def checkerBoard(sideLength):
    shape = iolink.VectorXu64(sideLength, sideLength)
    dt = iolink.DataTypeId.UINT8
 
    # allocate the image in memory
    image = iolink.ImageViewFactory.allocate(shape, dt)
 
    tileCount = 10
 
    blackValue = 0
    whiteValue = 255
 
    # tile is square, its width and height are the same
    tileSizeInPixel = shape[0] // tileCount
 
    # create the checkerboard pixel by pixel
    for i in range(0, shape[0]):
        for j in range(0, shape[1]):
 
            # compute the concerned tile position
            # which contains current pixel
            tileIndexX = i // tileSizeInPixel
            tileIndexY = j // tileSizeInPixel
 
            # write black or white color according to the tile index
            # at the pixel position
            if ( (tileIndexX + tileIndexY) % 2 == 0):
                image.write([i, j], blackValue)
            else:
                image.write([i, j], whiteValue)
 
    return image
 
start = timeit.default_timer()
img = checkerBoard(1000)
stop = timeit.default_timer()
print('CheckerBoard created in: ', stop - start, "s")
 
print("Generated ImageView:", str(img))
 
 
 
# from PIL import Image
# import numpy as np
 
 
 
#img.save("checkerboard.png")
#img.show()
 
print("SUCCESS")