23 lines
763 B
Python
23 lines
763 B
Python
import cv2
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def enhance_image_for_ai(input_path: str) -> str:
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"""Enhances dark areas and contrast using CLAHE without blowing out bright areas."""
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img = cv2.imread(input_path)
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if img is None:
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return input_path
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# Convert to LAB color space to modify luminance channel only
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lab = cv2.cvtColor(img, cv2.COLOR_BGR2LAB)
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l, a, b = cv2.split(lab)
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# Apply CLAHE to Lightness channel
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clahe = cv2.createCLAHE(clipLimit=3.0, tileGridSize=(8, 8))
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cl = clahe.apply(l)
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# Merge channels and convert back to BGR
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limg = cv2.merge((cl, a, b))
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enhanced = cv2.cvtColor(limg, cv2.COLOR_LAB2BGR)
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enhanced_path = input_path.replace(".jpg", "_enhanced.jpg")
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cv2.imwrite(enhanced_path, enhanced)
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return enhanced_path |