How to read text from image c# without MODI

If you are looking for an open source OCR engine (OCR stands for Optical Character Recognition), one good engine is Tesseract. You can find an example on it here:
http://www.c-sharpcorner.com/code/1264/ocr-optical-character-recognition-using-tessnet2-in-C-Sharp.aspx

Another approach (I went with) is to use a licensed SDK. I used leadtools sdk because their powerful OCR engine is backed by a more powerful image processing features to enhance OCR results. You can find an example here:
http://support.leadtools.com/SupportPortal/CS/forums/43549/showpost.aspx#43549