With the rapid development of Internet and the popularity of computer knowledge, coupled with the recent sharp price scanners, more and more households have a scanner. So, how to get the scanner “springs eternal” mean? How can more efficiently use the scanner it? Generally speaking, the main text recognition scanner, image scanner (including in-kind scanning) and other functions, most people are using the flatbed scanner, then the author from the routine ICOM icf11 battery maintenance, text recognition, image scanning and other aspects to talk about how to efficiently use the flatbed scanner.
Routine maintenance
To give full play to the function of the scanner, routine maintenance is essential. The current principle of the scanner can be classified according to their charge-coupled device (CCD) scanners and touch sensitive devices (CIS or LIDE) scanner, two; according to the form of sub-interfaces are EPP, SCSI and USB scanners are three . CCD scanner, which because of its more mature technology, with a high scanning resolution, depth of expression, long life, etc., which are widely used, but because of their use of optical lens, etc., including precision optical system, making it structure is relatively fragile. In daily use, in addition to dust away, but also to prevent the dramatic impact and frequently moving, to avoid damage to optical components. Some scanners (such as Acer scan Prisa 320p, etc.) also has a dedicated lock / unlock (lock / unlock) institutions, mobile scanners, should be locked optical components, but special attention is again scanner, make sure to first unlock! Otherwise, it is likely caused because of negligence damage transmission scanner! I have met quite a few users thus aggrieved it! EPP parallel port for the KENWOOD th78a battery scanner used, in order to prevent the burning of the motherboard, plug the computer must be turned off. And different parallel port scanner support model is different, such as EPP, ECP, etc., the user should be according to the instructions to set the correct parallel port mode and select the optimal settings through practice, improper or wrong parallel port settings will reduce the performance of the scanner, even lead to failure. In addition, many users focus on upgrading graphics cards and other equipment are the driver, but often neglected to upgrade the scanner driver. The driver has a direct impact on the performance of the scanner, and involves a variety of software and hardware system compatibility. To make the scanner work better, should always be to its manufacturer’s website to download updated drivers for its “inject” new “energy”! In short, the “light-light, dust and maintenance, optimization settings, update drivers” to allow the scanner, “the game of eternal vitality,” the secret set by leaders.
Text recognition
The so-called text recognition system, which OCR (Optical Character Rcognize) optical character recognition system, refers to the use scanner to newspapers, magazines and other printed media MOTOROLA HT1000 Battery characters, tables and graphics, and even scanned handwritten Chinese characters into the computer, and then identify, so as to achieve high-speed A Chinese character input software. Most scanners are now supplied a set of OCR software, but how to improve OCR recognition rate? In general, OCR recognition rate is mainly affected by the following four factors:
1. Original quality;
2. The use of OCR software;
3.OCR parameter settings;
4. Scan parameter settings.
Manuscript should be clean and free of dust and impurities, the best selection of high quality printed originals, avoid using manuscripts. Scan, the original should be placed neatly to avoid excessive tilt. Case of tilt, but also with the software’s “tilt correction” function to correct, in order to facilitate the layout of OCR software. If the scanned image noise more, you should first remove the noise of the deal were then identified. The selection of the OCR software, now popular on the market are Tsinghua OCR, Book OCR, Penpower OCR, etc. There are some products Professional and Popular Edition of the points. OCR selected, the right to set its parameters is very important. Many OCR software provides a standard TWAIN interface and the so-called “direct final sweep,” the two scan mode, in actual use, should be through several experiments to ICOM bp209 battery determine which method is more efficient and practical. In addition, many people have such a misunderstanding: increase the resolution (DPI) can improve the recognition rate. But in fact, in general newspapers, magazines, selected around 300DPI Resolution can, but the resolution is too high may reduce the recognition rate. This is because the high resolution will be more “carefully” to scan the details of the printed word, more easily “pulled” out of print presentation flaws, defects, resulting in recognition rate. Especially when the original printing quality is not very good, this reflects the more obvious side effects. In fact, for most of the original, the real impact of the recognition rate of the parameter is the concentration of light and shade, the brightness and contrast. The set of strokes of Chinese characters looked neither incomplete nor mutual adhesion prevail. In short, by “clean originals, placed neatly, preferably OCR, properly set up” the text can effectively improve the recognition rate.
Image scanning
Scanner to obtain digital images of our critical equipment, it is clear, scanning the same photo, the Motorola radius p210 battery optical resolution of 600 × 1200DPI, 36Bit scanner color depth than the 300 × 600DPI, 24Bit color depth image scanner to obtain more clear and bright. Therefore, the more economically well-off users, should try to choose the optical resolution of 600 × 1200DPI, 36Bit color depth of more than CCD scanners. So, with high-end scanner, we will be able to obtain high-quality digital images? No! To obtain high-quality digital images, in addition to a sophisticated “weapons” but also must become less “internal strength miscellaneous.”
1, the interpolated resolution of choice
The so-called “interpolated resolution” refers to the built-in scanner technology to provide compensation by interpolation mathematical resolution, it is usually much higher than the optical resolution. But its not very effective to improve image quality, but several times or even several times to increase the image file size, reducing the scan speed. Therefore, if it is used for high-quality print output, select high interpolated resolution meaningless.
2, the scanned image post-processing
Almost all KENWOOD th27a battery scanners are different degrees, the following four areas:
(1) the overall contrast distortion. As flatbed scanner will confuse the image dynamic range compression image bright and dark at the gap, causing the overall image contrast distortion.
(2) image color cast. The optical system, and many other reasons, the image scanner to obtain the phenomenon of color cast can easily occur, resulting in incorrect colors.
(3) reticulate (network). Are based on the print outlets in print, the scanner’s “piercing eyes”, these outlets will be “true colors”, if not dealt with, once again printed output, the network will be more prominent, affecting the printing quality.
(4) focal length are not allowed. As the camera as the optical scanner system, there are also the focal length error, especially the CIS scanner device, thus leading to the scanned image is not clear enough.
Although many cheap sony batteries scanner manufacturer through the provision of hardware or software to network, set the filter in the driver as much as possible and other ways to offset these negative factors, but no doubt is: scan the image post-processing is essential! So, how can we efficiently and easily complete a one-time post-processing work? This author describes a method for your reference.