python - 图片中的文字是否加粗？

Question

我一直在用 Tesseract OCR 试验 latley。我能够在图像中找到字符，但我无法仅找到图像中的粗体字符(知道文档图像中的字符是否为粗体)。我在 Tesseract API 的另一个问题 ( Can I use OCR to detect font style (bold, italic)? ) 中看到了 WordFontAttributes() 函数，但我无法在 Python 中实现它。

Answer 1

在安装 tesseract 3.05 之前(第 4 版不支持 WordFontAttributes)

from tesserocr import PyTessBaseAPI, RIL, iterate_level


def get_words_info(image_path, tessdata_path):
    """
    get path to image and path to tessdata and return dict with info about each word
    """
    # api = PyTessBaseAPI(path=tessdata_path)
    with PyTessBaseAPI(path=tessdata_path) as api:
        api.SetImageFile(image_path)
        api.Recognize()
        iter = api.GetIterator()
        level = RIL.WORD

        result = []

        for r in iterate_level(iter, level):
            element = r.GetUTF8Text(level)
            word_attributes = r.WordFontAttributes()
            base_line = r.BoundingBox(level)

            if element:
                word_attributes['word'] = element
                word_attributes['position'] = base_line

            result.append(word_attributes)

        return result