valkit | The set of validators for Python | Validation library
kandi X-RAY | valkit Summary
kandi X-RAY | valkit Summary
The set of validators for Python 3
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Top functions reviewed by kandi - BETA
- Validate arg .
- Validate a path .
- Validate logging level .
- Validate a valid IP address .
- Validate that arg is a valid IP address family .
- Check if a string matches a regular expression .
- Return a list of strings .
- Validate a port number .
- Validate a filename .
- Validate if arg is empty .
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QUESTION
I am attempting to collect data from a shop in a game ( starbase ) in order to feed the data to a website in order to be able to display them as a candle stick chart
So far I have started using Tesseract OCR 5.0.0 and I have been running into issues as I cannot get the values reliably
I have seen that the images can be pre-processed in order to increase the reliability but I have run into a bottleneck as I am not familiar enough with Tesseract and OpenCV in order to know what to do more
Please note that since this is an in-game UI the images are going to be very constant as there is no colour variations / light changes / font size changes / ... I technically only need to get it to work once and that's it
Here are the steps I have taken so far and the results :
I have started by getting a screen of only the part of the UI I am interested in in order to remove as much clutter as possible
I have then set a threshold as shown here ( I will also be using the cropping part when doing the automation but I am not there yet ), set the language to English and the psm
argument to 6 witch gives me the following code :
ANSWER
Answered 2022-Jan-03 at 23:02Pytesseract, on its own, doesn't handle table detection very well - the table format isn't retained in the output, which can make it difficult to parse, as seen in your output.
So splitting the table into distinct columns, performing OCR on each, and then rejoining the columns will help. This is slower, but it is more accurate.
Dilation can help, which adds white pixels to existing white areas (using the threshold and image you currently have). This expands the narrow areas of the numbers.
In my experience, to improve the accuracy generally means splitting the table up into different sections, as well as testing different thresholds and dilation settings.
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Install valkit
You can use valkit like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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