光学字符识别 (OCR)：
OCR 是将图像转换为机器编码文本的机械电子技术。换句话说，它是使用技术来区分物理文档(例如扫描的纸质文档)的数字图像中的印刷或手写文本字符。
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磁性墨水字符阅读器 (MICR)：
它是一种字符识别技术，银行业使用它来简化支票和其他文件的处理和清关。换句话说，它是一种用于验证纸质文档原创性的技术。
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光学字符识别(OCR)和磁墨字符识别(MICR)的区别：
| OCR | MICR | OCR is a scanner that scans the pages comprised of texts. | MICR is a character scanning technology but it utilizes a magnetic ink and special characters. |
|---|---|
| It can scan any type of printed text | It can scan the special information present in cheques. |
| It supports variety of shapes of fonts | It supports only Pre-defined fonts like E-138 and CMC-7. |
| All type of ink are used in OCR | In MICR, only special type – magnetic ink created using iron oxide are used. |
| In OCR, Scanned data is used for editing or printing. | In MICR, Scanned data is used for processing the cheques. |
| For example, If one wants to convert a multipage document into a digital image, he can load the document into an OCR program, which converts the document to an editable text file after recognizing the original text. . | For Example, If one has an account in sector 62, Noida branch of Punjab National Bank (PNB). What would be its MICR code? City code for Noida: 110 ; Bank code for PNB: 032 ; Branch code for Sector 62: 013. Thus, the MICR code is: 110032013 |