BrushCue Example: Canopy Light¶
You can use this tool online at https://www.brushcue.com/tools/canopy-light
In [ ]:
!pip install brushcue
In [1]:
import io
from PIL import Image
import brushcue as bc
input_image = bc.Composition.monet_women_with_parasol()
strength = 1.0
toned = (
input_image.target_white_kelvin(5200.0)
.color_transformer_shader(
"let highlight_weight = smoothstep(0.2, 0.7, input.r);\n let tint = mix(shadow_tint, highlight_tint, highlight_weight) * amount;\n return vec4<f32>(input.r, input.g + tint.x, input.b + tint.y, input.a);",
"",
bc.ColorRepresentation.oklab_a(),
bc.ColorRepresentation.oklab_a(),
bc.Dictionary.create()
.add("amount", strength)
.add("shadow_tint", bc.Vector2f.from_components((-0.04), 0.02))
.add("highlight_tint", bc.Vector2f.from_components(0.03, 0.05)),
)
.saturation_adjust((1.0 + (0.18 * strength)))
)
bounds = input_image.bounds()
dapple = bc.Composition.freeform_shader(
"let hash1 = fract(sin(canvas_position.x * 0.013 + seed) * 43758.5453);\n let hash2 = fract(sin(canvas_position.y * 0.017 + seed * 1.7) * 22578.145);\n let n = hash1 * hash2;\n let mask = smoothstep(0.55, 0.95, n);\n return vec4<f32>(mask, mask * 0.92, mask * 0.65, mask);",
"",
bounds,
bc.ColorRepresentation.srgb(),
bc.Dictionary.create().add("seed", 4.0),
).opacity_scales((0.35 * strength))
glowed = toned.blend_add(dapple, bc.Transform2.identity()).bloom(0.7, 20.0, 0.1)
grained = glowed.film_grain(1.51, 150.0, 0.5, 51.0, 0.3, 300.0, 0.2)
filtered = grained.vignette(
bc.Vector2f.from_components((bounds.width() / 2.0), (bounds.height() / 2.0)),
(bounds.width() / 2.0),
(bounds.height() / 2.0),
300.0,
0.3,
).crop(bounds)
graph = (
filtered.opacity_scales(strength)
.blend_alpha(input_image, bc.Transform2.identity())
.crop(bounds)
)
ctx = bc.Context()
composition = graph.execute(ctx)
data_bytes = composition.to_image_bytes(ctx)
img = Image.open(io.BytesIO(data_bytes))
img.thumbnail((400, 400)) # Remove this line for full resolution
img
[wgpu] using backend Metal — adapter 'Apple M5' (IntegratedGpu), driver ''
Out[1]: