Hello @sami jan , Thanks for using Microsoft Q&A Platform.
As we know, Document Intelligence Read Optical Character Recognition (OCR) model runs at a higher resolution than Azure AI Vision Read and extracts print and handwritten text from PDF documents and scanned images.
My suggestion is to try adjusting the resolution of the image to improve OCR accuracy. Generally, higher resolution images generally produce better OCR results. Document scan quality, resolution, contrast, light conditions, rotation, and text attributes such as size, color, and density can all affect the accuracy of OCR results.
However, it totally depends on your use case, if you are looking to improve the OCR Vision API performance, I would suggest you check these best practices to improve system performance: https://video2.skills-academy.com/en-us/legal/cognitive-services/computer-vision/ocr-characteristics-and-limitations?context=%2Fazure%2Fai-services%2Fcomputer-vision%2Fcontext%2Fcontext&view=doc-intel-4.0.0#system-limitations-and-best-practices-to-improve-system-performance
I hope this helps.
Regards,
Vasavi
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