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#!/usr/bin/python
from PIL import Image
import numpy
from libtiff import TIFF
width = 1998
height = 1080
filename = 'test.tif'
im = numpy.zeros((height, width, 3), dtype=numpy.uint16)
# Convert 12 to 16-bit
def pixel(x):
return x << 4
# Bars of increasing intensity in X
for x in range(0, width):
for y in range(0, height):
if x < 400:
im[y][x][0] = pixel(0)
elif x < 800:
im[y][x][0] = pixel(1024)
elif x < 1200:
im[y][x][0] = pixel(2048)
elif x < 1600:
im[y][x][0] = pixel(3072)
else:
im[y][x][0] = pixel(4095)
# Ramp in Y
for x in range(0, width):
for y in range(0, height):
im[y][x][1] = pixel((x * 4) % 4096)
tiff = TIFF.open(filename, mode='w')
tiff.write_image(im, write_rgb=True)
tiff.close()
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