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Andras Schmelczer 2024-06-18 22:08:48 +01:00
commit e17068baba
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7 changed files with 97 additions and 98 deletions
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43
src/editor/utils/get_colour_lut.py
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@ -1,43 +0,0 @@
import numpy as np
from typing import List
from .random import random
from .interpolate import interpolate, INTERPOLATION_TYPE
def get_random_saturation_per_hue_lut(
variance: float = 0.4, count: int = 12
) -> List[int]:
edit_points = [random(-variance, variance) + 1 for _ in range(count)]
return [
interpolate(edit_points, i / 255, type="cubic")
for i in np.linspace(0, 255, 256)
]
def get_random_brightness_lut(
variance: float = 0.2,
count: int = 6,
type: INTERPOLATION_TYPE = "linear",
min_spectrum_size: float = 0.6,
max_spectrum_size: float = 1.15,
) -> List[int]:
spectrum_size = np.random.uniform(min_spectrum_size, max_spectrum_size)
spectrum_start = np.random.uniform(0, max(0, 1 - spectrum_size))
edit_points = sorted(
[
spectrum_start,
*[
spectrum_start
+ i * spectrum_size / (count - 2)
+ np.random.uniform(-variance, variance)
for i in range(1, count - 2)
],
spectrum_start + spectrum_size,
]
)
return [
round(interpolate(edit_points, i / 255, type=type) * 255)
for i in np.linspace(0, 255, 256)
]