"Frontier" scanning skills

4, smart scan large images

Most of the scanners used by individual users are of A4 size. To use this type of scanner to scan images or documents that are larger than the size of the scanner, we cannot use the scanner. The scanned original is scanned at one time. At this time, it is necessary to divide the original into multiple times to complete the scan. After scanning, the various parts are put together to generate a complete large-scale image. However, in the sub-scanning, you must first place the original to be scanned on the scanner flat glass, and measure it horizontally and vertically so as to determine whether it is convenient to scan horizontally or vertically. In order to facilitate the subsequent generation of images, it is easy to seamlessly splicing, and everyone must keep the original horizontally on the flat glass during the scanning process. If the original cannot be horizontally placed due to different thicknesses, we must place a little bit of stuff in the comparison book so that the original can be placed horizontally, and we must also make sure that something on the pad cannot cover the contents of the original that need to be scanned. After the end of the scan, you must copy the block-generated image after the scan to the same new file. This will make it easy to check whether the brightness is the same in each part. If it is not the same, you can use professional image processing. Tools, such as Photoshop, handle the adjustment of the color shades in each image to match. Finally, Photoshop is used to adjust the position of each image so that the edges of each image can be matched with each other to generate a complete large image.