File size: 2,961 Bytes
82ea528 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 |
### Light Source
import numpy as np
from enum import Enum
class LightPosition(Enum):
LEFT = "Left Light"
RIGHT = "Right Light"
TOP = "Top Light"
BOTTOM = "Bottom Light"
TOP_LEFT = "Top Left Light"
TOP_RIGHT = "Top Right Light"
BOTTOM_LEFT = "Bottom Left Light"
BOTTOM_RIGHT = "Bottom Right Light"
def generate_gradient_image(width:int, height:int, start_color: tuple, end_color: tuple, multiplier: float, lightPosition:LightPosition):
"""
Generate a gradient image with a light source effect.
Parameters:
width (int): Width of the image.
height (int): Height of the image.
start_color: Starting color RGB of the gradient.
end_color: Ending color RGB of the gradient.
multiplier: Weight of light.
lightPosition (LightPosition): Position of the light source.
Returns:
np.array: 2D gradient image array.
"""
# Create a gradient from 0 to 1 and apply multiplier
if lightPosition == LightPosition.LEFT:
gradient = np.tile(np.linspace(0, 1, width)**multiplier, (height, 1))
elif lightPosition == LightPosition.RIGHT:
gradient = np.tile(np.linspace(1, 0, width)**multiplier, (height, 1))
elif lightPosition == LightPosition.TOP:
gradient = np.tile(np.linspace(0, 1, height)**multiplier, (width, 1)).T
elif lightPosition == LightPosition.BOTTOM:
gradient = np.tile(np.linspace(1, 0, height)**multiplier, (width, 1)).T
elif lightPosition == LightPosition.BOTTOM_RIGHT:
x = np.linspace(1, 0, width)**multiplier
y = np.linspace(1, 0, height)**multiplier
x_mesh, y_mesh = np.meshgrid(x, y)
gradient = np.sqrt(x_mesh**2 + y_mesh**2) / np.sqrt(2.0)
elif lightPosition == LightPosition.BOTTOM_LEFT:
x = np.linspace(0, 1, width)**multiplier
y = np.linspace(1, 0, height)**multiplier
x_mesh, y_mesh = np.meshgrid(x, y)
gradient = np.sqrt(x_mesh**2 + y_mesh**2) / np.sqrt(2.0)
elif lightPosition == LightPosition.TOP_RIGHT:
x = np.linspace(1, 0, width)**multiplier
y = np.linspace(0, 1, height)**multiplier
x_mesh, y_mesh = np.meshgrid(x, y)
gradient = np.sqrt(x_mesh**2 + y_mesh**2) / np.sqrt(2.0)
elif lightPosition == LightPosition.TOP_LEFT:
x = np.linspace(0, 1, width)**multiplier
y = np.linspace(0, 1, height)**multiplier
x_mesh, y_mesh = np.meshgrid(x, y)
gradient = np.sqrt(x_mesh**2 + y_mesh**2) / np.sqrt(2.0)
else:
raise ValueError(f"Unsupported position. Choose from {', '.join([member.value for member in LightPosition])}.")
# Interpolate between start_color and end_color based on the gradient
gradient_img = np.zeros((height, width, 3), dtype=np.float32)
for i in range(3):
gradient_img[..., i] = start_color[i] + (end_color[i] - start_color[i]) * gradient
gradient_img = np.clip(gradient_img, 0, 255).astype(np.uint8)
return gradient_img |