Keras_ocr library not detecting specific texts from the image

[Immanuel-Codoid]

I'm currently using keras_ocr library to detect and extract text data from control diagrams, it detects almost all of the text in the control diagrams but missing out some and I don't know why.

I tried with the code example from the keras_ocr document

import matplotlib.pyplot as plt
import keras_ocr
pipeline = keras_ocr.pipeline.Pipeline()
images = [
    keras_ocr.tools.read(img) for img in ['./function_diagram.PNG',
                                          './multi_function_diagram.PNG'
    ]
]
prediction_groups = pipeline.recognize(images)
fig, axs = plt.subplots(nrows=len(images), figsize=(20, 20))
for ax, image, predictions in zip(axs, images, prediction_groups):
    keras_ocr.tools.drawAnnotations(image=image, predictions=predictions, ax=ax)

Note: You can see in the detection image that it is not detecting text "110" from the image, how to solve this so that it detects all the text in the image.

Help is much appreciated in advance