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![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Do some basic image processing before recognition to improve the recognition rate:
im = Image.open(img_name)
enhancer = ImageEnhance.Color(im)
enhancer = enhancer.enhance(0)
enhancer = ImageEnhance.Brightness( enhancer)
enhancer = enhancer.enhance(2)
enhancer = ImageEnhance.Contrast(enhancer)
enhancer = enhancer.enhance(8)
enhancer = ImageEnhance.Sharpness(enhancer)
im = enhancer.enhance(20)
print pytesseract .image_to_string(im)