1. Find the best scanning area for the platform scanner
We can find the best scanning area for the scanner. We should place the image here to get the best and most fidelity image effect.
Ways to find: Set all scanner controls to automatic or default, select all areas, scan a blank, white, or opaque block sample at low resolution. Open Adobe Photoshop software, process it with the Equalize command (Equalize menu item), and then you can see where there are cracks, streaks, and black spots on the scanner. We can print this file and cut out the best area (that is, the most stable area) to help us place the image.
2. Rotate the image before scanning
Performing a rotation process is a waste of time, and depending on the angle of rotation, the quality of the image will decrease. If we know in advance how the image will be placed on the page, then using the protractor and the bottom edge of the original to place the original on the roller and platform at a precise angle will yield the highest quality image without having to rotate it in the image processing software. .
3. Optimize the scanner resolution
Scanning linework, the scan resolution matches the output resolution. For example, prepare a 600dpi resolution printer output and scan at 600dpi. If possible, scale down large images after scanning. For example, we scan a 4 x 4 inch image at 600 dpi, and reduce it to 2 x 2 inches in the build program. Its resolution is 1200 dpi.
4. Zoom in, soften, then add noise
If you zoom in on Photoshop files and want to minimize the loss of image quality. After zooming in, add 1 or 2 points of Gaussian softening, then add 1 noise. Make sure to check the sawtooth effect in the 2:1 field of view.
5. Scanned dark manuscripts
For many reasons desktop scanners do not scan well for dark images. Frequently, adding a little noise can be very helpful for shadowing areas of such images.
6. Elimination of Newton rings
Newton rings often appear when scanning transmitted originals. Cleaning the scan roller and platform can reduce its production. But if it still exists, then use some simple methods: In part, use a duster equipped with corn flour, go to the place where you leave the scanner, squeeze the corn flour out of the duster, and let it scatter from the air. When the large particles of powder fall, hold the corner of the translucent paper and let it pass through the dusting area so that the fine particles in the air fall on it to achieve the purpose of eliminating the Newton ring.
7. When you change the image size, stay selected
When we change the image size or the canvas size in Photoshop, we will lose the active selection before the operation. If you want to keep this selected outline, switch to Quick Mask mode before changing the size (press Q or select QuickMaster mode in the toolbar). The Image Size command can change the image size and the mask size together. Changes in canvas size do not affect the size of the selection. (If you intend to increase the canvas size, first set the background color to black so that the new blank area is not selected.) When each command is completed, return to the standard mode and restore the option outline.
8. Maximize the gamut of the scanned image
To make full use of the 30 or 36-bit scanner to increase the color range, you can use the scanner software (such as Agfa's FotoTune or other company's software) to adjust the color as much as possible so that the image can be inserted in the widest color gamut range. Because Photoshop software only handles 24-bit images.
9. Combine images for better detail performance
What if the range of tonality of the image we are scanning is larger than what our scanners or software can adapt to, such as sky clouds or skin tones with many highlight details, and the level of deep shadows to be represented simultaneously?
The best method is to scan the image twice with the same scanning resolution. However, one image is adjusted to the largest bright detail and the other image is adjusted to the largest dark detail. Open the image in Photoshop and open the layer template's layer selection dialog to place the two images in adjacent layers. This dialog box gives us the option of mixing each scan image (press Option to separate the sliders so that the midtones are overly smooth.).
If you are using LivePicture software, insert images into adjacent layers and use the Insert brush to draw more detail from one layer to another. This is done in Photoshop using the brush and feather options. The resolution-independent brush of LivePicture software provides fast, natural hybrid image effects even at very high resolutions.
10. Match the size of the new image with an open image
When we create a new image in Photoshop, the program automatically matches the resolution and size set on the clipboard, but we can also match the newly generated image's size and resolution settings to any open image.
Open the New dialog and select any file name for the open file in the Window menu. Photoshop can capture the size and resolution of this image and reflect it in the corresponding new dialog box. Similarly, in the ImageSize dialog, we can change the size of an image to match another selected file name; or in the canvas dialog box, cut a file to make it with another selected file Match.