![]() ![]() My original image is 3x5 inches and I scan it in at 72 ppi If your monitor had a screen resolution of 82 ppi, the image would show up smaller (as if it were a 2.6x4.4 image). (I say close to because images are displayed slightly enlarged on monitors.) If your monitor had a screen resolution of 64 ppi, the image would show up slightly larger (as if it were a 3.4x5.6 image). This means that when you look at the picture on your monitor, it will show up at close to its original size. Assume that your monitor also has a screen resolution of 72 ppi. Here is an example that will illustrate what part screen resolution has in influencing the display of an image. Screen Dimensions from Monitor (or Display) Control Panel Generally, monitors have a screen resolution between 60 and 100 ppi. Below are a few other calculations for screen resolution. To find your screen resolution divide 800 by 12.5 and you will get a resolution of 64 ppi. A 17 inch monitor has a viewable area that is about 12.5 inches wide. The resolution of your screen is determined by dividing the screen width in pixels by the visible width of the screen in inches.įor example: Set your screen to be 800圆00 pixels in the Monitor (or Display) Control Panel. As was mentioned earlier, you can change the resolution of your screen by changing the dimensions in the Monitor (or Display) Control Panel. To answer this question you need to know more about the screen resolution of your monitor. Why is 72 ppi the standard? (otherwise known as the nitty-gritty) If you want to know the nitty-gritty of 72 ppi it is explained below. If that is all you are interested in knowing, stop reading. (Usually you will select the Screen setting from the Destination or Resolution menu in the TWAIN window.) Since increasing the resolution doesn't enhance the quality of your image, you are best to leave the resolution at the default and do your sizing using the scale feature in the TWAIN window. So what resolution should I use when I scan?īy default, most scanners on campus, when set to Screen in the TWAIN software, will set the resolution to somewhere around 72 or 75. If the screen were set to 640x480 pixels, that same 300x500 image would be taller than the entire screen and you would have to scroll down to see the bottom of it. Since the screen can only display 800圆00 pixels, a 300x500 image will take up almost half the width and almost all of the height. Let's assume the screen is set to 800圆00 pixels. You can choose from dimensions such as 640x480 pixels or 800圆00 pixels. The resolution is set in the Monitor (or Display) Control Panel by choosing screen dimensions. ![]() For example, scanning the same 3x5 inch photograph at 200 pixels per inch the resulting image becomes 600x1000 pixels because each inch of the picture is represented by 200 pixels.Ī computer screen has its own resolution. Scanning an image at a higher resolution will result in a larger image. When scanning a 3x5 inch photograph at 100 pixels per inch the resulting image becomes 300x500 pixels because each inch is represented by 100 separate pixels. This specifies how many pixels represent a linear inch of an image or monitor screen. A screen and an image can both be measured in pixels. The grid makes up whatever image you are looking at. Pixels are simply blocks of color arranged in a grid. When working with image and screen resolution we talk about pixels. Although very small images are often seen as "fuzzy" when viewed at a larger scale, the difference in quality as the images get larger is hardly noticeable when they're viewed at their intended sizes. Larger images may look clearer, but there is a trade-off in screen real estate. If your resolution is higher, the image dimensions will be larger. For screen images, resolution simply means size. For images that are being displayed on the screen, higher resolution does not equate to better clarity as it does with printed images. ![]()
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