Understanding the differences between monitor, images, and device resolution

Image resolution is determined by the number of pixels per inch (ppi) that are printed on a page. Pixel dimensions (the number of pixels along the height and width of a bitmap image) determine the amount of detail in an image, while image resolution controls the amount of space over which the pixels are printed. High resolution images show greater detail and more subtle color transitions than low resolution images. Device resolution or printer resolution is measured by the ink dots per inch (dpi) produced by printers. You can set the resolution of your computer monitor to determine the detail with which images will be displayed. Each monitor should be calibrated to describe how the monitor reproduces colors. Monitor calibration is one of the first things you should do because it determines whether your colors are being accurately represented, which in turn determines how accurately your output will match your design intentions.

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Photoshop Secrets

Photoshop Secrets

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