![]() So now you have interpolated (messed with the pixels) to reduce the size of the file. and the pixel size is now 720×720 pixels. See, the image is still 10×10 inches but at screen resolution. Now CHECK the 'Resample Image' box and change the resolution to 72 ppi. Number of Pixels = Size in Inches ∗ PPI = 376.57 PPI. Hold Alt and click the RESET button to put things back as they were. ![]() Tap Image in the Photoshop Elements menu. The following formula gives the number of pixels, horizontally or vertically, given the physical size of a format and the pixels per inch of the output: How to Change DPI in Photoshop Elements Open the desired image in Photoshop. Size, resolution and the number of pixels are related as follows: Pixels Length (inches) x Resolution (ppi) If you set any two variables, the third is fixed. Since most digital hardware devices use dots or pixels, the size of the media (in inches) and the number of pixels (or dots) are directly related by the 'pixels per inch'. Considered in another way, a pixel has no inherent size or unit (a pixel is actually a sample), but when it is printed, displayed, or scanned, then the pixel has both a physical size (dimension) and a pixel density (ppi). Note that pixel density is not the same as resolution - where the former describes the amount of detail on a physical surface or device, the latter describes the amount of pixel information regardless of its scale. But Increasing Resolution may not help in actual pixel increasing. Horizontal and vertical density are usually the same, as most devices have square pixels, but differ on devices that have non-square pixels. A short tutorial on how to change the DPI (Dots per Inch, or Pixels per Inch) of an image in Photoshop CC.Wallpaper from this video. Image> Image Size> Set Re sample Unchecked, Change Resolution to desired DPI. Since the pixels are now set to the same. Pixels per inch ( ppi) and pixels per centimetre ( ppcm or pixels/cm) are measurements of the pixel density of an electronic image device, such as a computer monitor or television display, or image digitizing device such as a camera or image scanner. Below are the same images as before but resized so that the pixel resolution is 72 dpi to suit the monitor. ![]() Screen resolution measured in pixels per length
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