ADHoc Information Retrieval I want to extract the total bill from image receipts. I could extract the entire data present in the image but now I am struck with the problem of extracting only the information that I need.

This is the image that I have.



I am pasting the extracted information from the image

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Sub Iota] 19.56
TOTAL 19.56
VISA 1956
Fun 19.56
D!!! You Know 0



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From this data I just want to extract the total bill. To get this I found out that I could use Ad Hoc Normalization (Adhoc retrieval). Can someone provide any insights on Adhoc retrieval. If there are any other option to extract the data from the image please let me do so. I am using tesseract to extract this information. Sometimes it is no giving the proper output. I could use some help in improvising the output given by the tesseract.
receipt-parser is receipt parser package in Python built on tesseract.