What are the performance requirements of a digital camera as a scanner?

With the gradual decline of prices and the improvement of functions, digital cameras began to enter the homes of ordinary people. For ordinary users, taking pictures with digital cameras is a matter of course. However, it is a little impossible for most people to input text with a digital camera. In fact, the function of digital camera is far more than just taking pictures. As long as you are good at discovering and using it, the digital camera will become the "King Kong" in your hand. Today, "Bubble Gum" invited Xia Xing to introduce this unique skill-the real "Kung Fu" of inputting words with a digital camera.

Most digital cameras in the market provide text (text) shooting function, so we use this function to realize text input. First, turn on the power switch of the camera and put the mode knob in the photo shooting mode. Press the Menu button and select Recording Mode-Text. At this time, the digital camera is placed in the text shooting mode. Select the appropriate photo resolution (i.e. size). At the same time, in order to improve the clarity of text images, we should turn on the macro shooting function of the camera, adjust the light source and exposure compensation. In order to ensure the shooting effect and avoid uneven brightness of the whole image, it is best to disable the built-in flash. After the preparation is completed, the next task is to hold your breath, hold the camera steady and adjust the focal length, and press the shutter to aim at the manuscript to be input, thus completing the shooting of the picture. The brightness of the picture is even, the text is black and white, and the edges and corners are sharp. Even the text that is easily distorted around the picture is good, and the overall effect is very clear and almost perfect. The following recognition work will be completed by professional OCR software (text recognition software).

First, upload the shot pictures to the computer, and then use professional OCR software (text recognition software) to recognize the text pictures into words, so as to complete the text input. For OCR software, if you have a scanner at home, you will generally be given a related OCR recognition software at random. For friends who don't have a scanner, you can find some free OCR software to download online. For example, I use the professional version of thunis OCR V7.5 provided by Ziguang Scanner. Before OCR recognition, we'd better use Photoshop and other software to adjust the contrast of text photos. Make the text and background in the photo stand out as much as possible. In this way, the paper background of the newspaper can become pure white, while the text becomes darker and more prominent, which is beneficial to the recognition of OCR software in the future. Then upload the picture to the computer and identify it with text recognition software. The author randomly selects two paragraphs in the picture for recognition, and the actual recognition effect is very good, and the correct rate reaches 100%, which reaches or even exceeds the scanning effect of ordinary scanners. Compared with the screenshot next to it, you can see its recognition result, which is really convenient!

Tip: It is necessary to remind readers that the format supported by Chinese recognition software must match the recognized picture format. As an extension of the text mode picture I took with Sony S75, it is ". Gif ",which is not supported by thunis OCR V7.5 Professional Edition, I need to convert it first.". Gif "into" Bmp "formats pictures with picture software such as ACDSee, and then carries out recognition processing.

Summary: newspaper, magazine or printed manuscript+digital camera+Chinese OCR software = computer text file! This seemingly "weird" combination actually brings us more application space. It is economical and practical to input characters in this way, so why not?