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26 lines
740 B
Python
26 lines
740 B
Python
import sys
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import numpy as np
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from PIL import Image
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if len(sys.argv) < 3:
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print("Usage: python convert_to_transparent.py <input_image_path> <output_image_path>")
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sys.exit(1)
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input_path, output_path = sys.argv[1], sys.argv[2]
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grey = np.array(Image.open(input_path).convert("L"))
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alpha_channel = 255 - grey
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rgba_array = np.zeros((grey.shape[0], grey.shape[1], 4), dtype=np.uint8)
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rgba_array[..., 0] = 0 # Red channel
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rgba_array[..., 1] = 0 # Green channel
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rgba_array[..., 2] = 0 # Blue channel
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rgba_array[..., 3] = alpha_channel # Alpha channel
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# Create a new image for the output
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rgba_img = Image.fromarray(rgba_array, mode="RGBA")
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# Save the result
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rgba_img.save(output_path, "PNG")
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print(f"Image saved to {output_path}") |