UiPath Document Understanding - Signature Extraction and Comparison | RPA | Use Case Building

[@ricardoguzmanganem4618]

This video is awesome, haven't seen that level of detail in the explanation of how to access all the information of ExtractionResults anywhere else in the internet.

[@LahiruFernando]

Hey.. thank you so much for your feedback. Means a lot!! 😀

[@mustaphamouloua1337]

Great example and methodic, keep sharing your precoius knowladge, please keep in mind for future videos to share the solution as well as the needed material "files, documnets etc..." to make it easy to follow allong and do'nt forget to delete anyAPI-key as well as other stuff that might be private 👍

[@umershahid1509]

More power to you Lahiru. I have learnt a lot from you.

[@LahiruFernando]

Thank you so much bro... Really happy to know that the contributions I do helped a lot.. Thanks a lot...

[@MukeshKala]

Well planned and neatly explained ❤

[@LahiruFernando]

Thank you bro!

[@souravsingh4305]

Thanks alot bro Lahiru.......This was one of the most awaited session expected from you......you can do it bro... great work.....Will try this for sure ...

[@LahiruFernando]

Thank you so much bro.. Reach out anytime if any help is needed..

[@robotdream8355]

Great brother and it would be amazing. I have comment out before seeing this

[@LahiruFernando]

Thank you so much bro!!! :) Also check the description of the video as it also has a link to a blog I wrote on the same.

[@mennaalmahdy5385]

The video is sooooooooooo helpful, Thanks sooo much for this huge effort.

[@deepikajayan1746]

Can you please help me i am facing an issue with this code .I am able to get output for 2 reords when it comes for 3rd record " Download File from Record Field: Index was out of range. Must be non-negative and less than the size of the collection.

[@LahiruFernando]

Hi Deepika, Can you tell me which object you were trying to access? Maybe share the code snippet so it is easier to verify. This error usually comes when you don't have such value in the JSON. We can connect over email as well if that works better. Let me know.. my email is: [e-mail]

[@CBECShivani]

Sir I'm getting " Download File from Record Field: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index" this as error what is the mistake

[@LahiruFernando]

Hi Shivani, So you are getting the error from Download File from Record Field activity that is linked to your Data Service. Based on the error message it seems like either the queried result did not return any results, or your data service entity do not have any information to read. Another cause could be the index used to get the file is out of the maximum number of records fetched. Can you check on these and let me know?

[@CBECShivani]

@@LahiruFernando Sir How can i check if the index has reached its maximum range

[@LahiruFernando]

@@CBECShivani You need to run the process in debug mode. Have a breakpoint on this activity, and use the Locale and Immediate panels to check the values in the variables. That should help to figure out where it is going wrong

[@CBECShivani]

@@LahiruFernando Sir the variable recordID has the type "GUID" and the value is displayed as-"Index was out of range. Must be non-negative and less than the size of the collection."

[@sureshm6743]

Hi Lahiru, This is great. How to store files in Orchestartor queue.

[@LahiruFernando]

Hi Suresh, You cannot use Orchestrator Queue to store files. It can only store basic data types. However, you could use Orchestrator Storage Buckets to store the file, and use the queue to store the reference to the file in the bucket. This way, rhrough the queue, you can access the file in the bucket and download when needed.

[@sureshm6743]

@@LahiruFernando Thanks. Is reference means storing name of the file in the queue?

[@LahiruFernando]

@@sureshm6743 it means once you store a file there it gives you a reference to access that file. Just like a path for example. Through that you can locate the file easily

[@robotdream8355]

Great Session! for signature comparison check with data services? I have two check, I want to compare one with another, how can I compare? Please explain brother.

[@LahiruFernando]

Hi, Yes.. here I used the Data Service as a data storage to store the original signature. Step 1: We extract signature from document Step 2: Download the other one from Data Service Step 3: Compare both signature images and check whether its valid So we are actually comparing two signatures. Is that clear now bro?

[@robotdream8355]

@@LahiruFernando previously signature was stored in data service as a DB. Whatever check we had, that we extract and compared with data service like DB. Correct bro? Thanks in advanced

[@LahiruFernando]

@@robotdream8355 Yes bro.. We only stored the signature in the Data Service as an image. So once we extracted the signature from the check, we downloaded the other from the DS entity, and compared those two using the ML model. The ML model only needs the two signatures for comparison :) So.. yes.. you are correct :)

[@robotdream8355]

@@LahiruFernando Nice explanation bro. You are Great 👍

[@robotdream8355]

Bro how many signature file(.jpg) need to upload to data service or DB for each of the customer? and upload would be .jpg file?

[@SaiKumar-ev3fc]

Please upload the videos for rpa uipath production support role work in day to day in project like L1, L2andL3

[@LahiruFernando]

Hey.. For sure.. I'll add it to my video list.. Thank you so much for suggesting topics my friend..

[@srenivasankannan1143]

Hi Lahiru , can we compare logo or images on the documents? In my cases there are 1000s of different format of documents, which is already trained through document understanding ML Model, now trying to process only trained documents, hence it would be great if I can able to compare logo's or images on the docs? Is it possible? and Is it possible without using uipath Data service?

[@LahiruFernando]

Hi Srenivasan, Yes, this is possible. However we need to train a model to detect the logos and images in the document. We will need to use Object detection model and train it with your images. Once the model is ready, we can apply the model on document image and see if that exists. Once exists, you can find ways to extract it as needed. Of course, we can do without data service. I just used it here to showcase how that works with DU.

[@srenivasankannan1143]

@@LahiruFernando thank you.. can i use one taxonomy to apply two model DU & object detection model?

[@LahiruFernando]

@@srenivasankannan1143 yes.. one Taxonomy can do

[@srenivasankannan1143]

@@LahiruFernando Thank you so much

[@sandrogiongo]

This is awesome content, great work! I've been struggling to find a solution to extract a signature from a PDF. I'll definitely try this! One question: If I use a ML Skill to label and extract the fields of PDF documents in Data Manager (instead of ), I cannot select the signature field, because the OCR doesn't recognize it as a text. Is there a way to extract the signature of a document using the ML Skills for Document Understanding? It's very hard to find detailed documentations about these features of UiPath.

[@LahiruFernando]

Hello Sandro, Thank you so much for your awesome thoughts. I hope this video helped you on this topic :) Regarding your question: The existing Document Understanding-related ML models cannot extract the signature from the documents. Those models are specific for extracting text. For now, the signature extraction has to be done through the Form Extractor. But, we could use the Object Detection ML model to see if the document contains a signature or not. This model helps when we don't know where the signature will be available in a page. Still, for extraction we need to use Form Extractor.