BrushCue Example: Channel Mixer

You can use this tool online at https://www.brushcue.com/tools/channel-mixer

!pip install brushcue

import io
from PIL import Image

import brushcue as bc

input_image = bc.Composition.monet_women_with_parasol()
rr = 1.0
rg = 0.0
rb = 0.0
off_r = 0.0
gr = 0.0
gg = 1.0
gb = 0.0
off_g = 0.0
br = 0.0
bg = 0.0
bb = 1.0
off_b = 0.0
graph = input_image.linear_transform(
    rr, rg, rb, off_r, gr, gg, gb, off_g, br, bg, bb, off_b, 0.0, 0.0, 0.0, 1.0
)

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 ''