COMPUTER HARDWARE
INPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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detects marks on a paper
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detects unique ridges of a fingerprint
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understands and converts hand written text
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detects the shape of characters
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Detailed explanation-1: -The scanned-in image or bitmap is analyzed for light and dark areas, where the dark areas are identified as characters that need to be recognized and light areas are identified as background. The dark areas are then processed further to find alphabetic letters or numeric digits.
Detailed explanation-2: -If you turn on OCR, Gmail converts the image attachment to text, detects the credit card number, and moves the message to quarantine. Note: OCR doesn’t scan images embedded in attached files, such as Adobe PDF or Microsoft Word documents. And, it’s not always 100% accurate.
Detailed explanation-3: -Combining OCR with Object Detection is highly useful when we need to extract particular pieces of information, but it can still be difficult to determine what is what (determining which piece of text is the answer to which question for example).