在Pillow中实现图像的局部增强和细节放大可以通过以下步骤实现:
from PIL import Image
image = Image.open('image.jpg')
from PIL import ImageFilter
enhanced_image = image.filter(ImageFilter.UnsharpMask(radius=2, percent=150, threshold=3))
from PIL import ImageEnhance
contrast_enhancer = ImageEnhance.Contrast(image)
enhanced_image = contrast_enhancer.enhance(2.0) # 增强对比度
sharpness_enhancer = ImageEnhance.Sharpness(enhanced_image)
enhanced_image = sharpness_enhancer.enhance(2.0) # 增强锐度
from PIL import ImageOps
expanded_image = ImageOps.expand(image, border=10, fill='black')
通过这些方法,可以实现对图像的局部增强和细节放大,从而改善图像的质量和细节。