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bitmapfilter_solar.py

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from displayio import Bitmap

import bitmapfilter

import ulab

from dump_bitmap import dump_bitmap_rgb_swapped

from blinka_image import decode_resource

def test_pattern():

return decode_resource("testpattern", 2)

def make_quadrant_bitmap():

b = Bitmap(17, 17, 1)

for i in range(b.height):

for j in range(b.width):

b[i, j] = (i < 8) ^ (j < 8)

return b

q = make_quadrant_bitmap()

b = test_pattern()

dump_bitmap_rgb_swapped(b)

print("solarize (masked)")

bitmapfilter.solarize(b, mask=q)

dump_bitmap_rgb_swapped(b)