27 lines
919 B
Python
27 lines
919 B
Python
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from PIL import Image
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def sketch_to_transparent(image, mask, transparency):
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# 打开原始图片
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image = image.convert("RGBA")
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# 打开mask图片，假设mask图片是灰度图，白色区域为要处理的区域，黑色区域为保留的区域
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mask = Image.fromarray(mask)
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# 根据透明度调整因子，将透明度转换为0-255之间的值
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alpha_value = int((1 - transparency) * 255.0)
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# 获取图片的像素数据
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image_pixels = image.load()
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mask_pixels = mask.load()
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width, height = image.size
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for y in range(height):
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for x in range(width):
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# 如果mask区域对应的像素为白色（值大于128，这里假设白色为要处理的区域，可根据实际情况调整）
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if mask_pixels[x, y] > 128:
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r, g, b, a = image_pixels[x, y]
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image_pixels[x, y] = (r, g, b, alpha_value)
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return image
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