What's the difference between scanning and taking pictures?

Question 1: What's the difference between the photos taken by the camera and those scanned by the scanner? Hello, theme!

In OCR software, there is no theoretical difference between the recognition of documents taken by a camera and those scanned by a scanner (of course, as long as the photos you take are clear enough).

The recognition rate of OCR software can be improved by the following methods:

1. Turn the photo into monochrome (black and white) and adjust the contrast of the photo to make Wen Ding easier to recognize.

2. Rotate the photo to make the text on the photo as correct as possible.

3. When taking pictures, make the camera perpendicular to the text as much as possible, so that the variance ratio of the text is small.

Step 4 trim.

If a scanner is used, it is also the same operation method: the resolution is preferably 200-300DPI, the contrast is adjusted to make the text easy to recognize, monochrome scanning is used, and the angle of the manuscript picture is adjusted after scanning to make the text correct. ...

In addition, it is almost impossible for OCR software to be error-free, so post-proofreading is still essential.

I hope my answer is useful to you!

Question 2: Is there a difference between a scanner and a camera? Scanning will be clearer and undistorted. Of course, you can shoot with a camera, but because of glare and focusing problems, there are often problems such as blur and color cast.

Question 3: What's the difference between scanning documents and photos? The scanned document is scanned by a printer, and the photos are taken by a camera and a mobile phone.

Printed matter can also be saved in the form of pictures, which can be directly used to print clearly.

Question 4: What's the difference between scanning and taking pictures? In fact, there is no difference.

It's an imaging technique.

However, if the document is scanned, it will be square, undistorted and clear.

Photos are prone to skew and blur.

Therefore, generally important documents, such as business licenses, identity cards and signed contracts, are scanned.

Question 5: What's the difference between scanning and shooting? The definition of upstairs is very accurate. As for the difference in pixels, that's just the difference in equipment. For example, a scanner can scan a picture with large pixels or a picture with few pixels. Similarly, now the general camera can take photos with relatively large pixels, or get along with fewer pixels, depending on how you set them up.

But as far as definition is concerned, the picture taken directly by the camera has better definition, while the picture obtained by scanning the photos with the scanner is relatively poor, which has nothing to do with the number of pixels, but the details of the picture are lost because of the two conversions from digital to analog and from analog to digital.

Question 6: What's the difference between scanning and taking pictures? After formal scanning and taking photos, it is in jpg format. Others will question the authenticity and irregularity of your documents. This is how to view the original post >>

Question 7: What's the difference between the photos taken by the mobile phone and those scanned by the scanner and put on the computer? There is no difference. It's all pictures. The difference is that the photos taken by mobile phones are not as professional and clear as those scanned by scanners.

Question 8: What's the difference between scanning and taking pictures? These are completely two concepts. . . First of all, the equipment is different. Scanners are used for scanning, and cameras or mobile phones are used for taking pictures. . Scanning is equivalent to copying. Taking pictures is original, but you need to have ideas. What kind of photos you take depends on the photographer.

Question 9: The difference between scanning and taking pictures. Hello!