33 lines
1.3 KiB
Python
33 lines
1.3 KiB
Python
from PIL import Image, ImageEnhance, ImageDraw, ImageFilter
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import random
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random.seed(7)
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im = Image.open("public/images/hero-after.webp").convert("RGB")
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w, h = im.size
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# ontkleuren + verdonkeren
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im = ImageEnhance.Color(im).enhance(0.5)
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im = ImageEnhance.Brightness(im).enhance(0.82)
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im = ImageEnhance.Contrast(im).enhance(0.92)
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# groen/grijs algen-overlay, sterker naar onderen
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ov = Image.new("RGB", (w, h), (60, 78, 55))
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mask = Image.new("L", (w, h), 0)
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md = mask.load()
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for y in range(h):
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base = int(40 + 150 * (y / h) ** 1.6) # onder veel sterker
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for x in range(0, w, 4):
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v = base
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md[x, y] = max(0, min(190, v))
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if x+1 < w: md[x+1, y] = md[x, y]
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if x+2 < w: md[x+2, y] = md[x, y]
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if x+3 < w: md[x+3, y] = md[x, y]
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mask = mask.filter(ImageFilter.GaussianBlur(8))
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im = Image.composite(ov, im, mask)
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# donkere drip-strepen
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d = ImageDraw.Draw(im, "RGBA")
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for _ in range(70):
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x = random.randint(0, w); top = random.randint(0, int(h*0.5)); ln = random.randint(int(h*0.2), int(h*0.7))
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a = random.randint(12, 34)
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d.line([(x, top), (x + random.randint(-6,6), top+ln)], fill=(30, 40, 30, a), width=random.randint(1,3))
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im = im.filter(ImageFilter.GaussianBlur(0.4))
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im.save("public/images/hero-before.webp", "WEBP", quality=88, method=6)
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print("OK hero-before.webp", im.size)
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