That tiny image will look good when printed in that small size, but if you try to spread those same pixels over a larger area, for example, 2” x 2” at 75ppi which is also 150px x 150px, then the result will be lower quality and pixelated. For example, creating a small image of 0.5” x 0.5” at 300ppi will give you 150px x 150px. The PPI setting becomes more useful when resizing in inches or cm rather than in pixels, as it saves you calculating pixel dimensions. The PPI setting just tells other programs how many slices you think the photo should be divided into, but there’s the same amount of data overall. Imagine you’ve finished baking your cake-you can divide it into 4 fat slices, or 16 narrow slices, but the overall amount of cake doesn’t change. It’s only useful when combined with units of measurements. When you’re talking in pixel dimensions, PPI doesn’t mean anything. We won’t go into a lot of detail as a web search on ‘PPI resolution’ will produce a multitude of information, but you’re simply defining how to divide up the photo. As a side point, DPI refers to Dots Per Inch, which doesn’t apply to digital images until they’re dots on a piece of paper. The PPI (Pixels Per Inch) setting, or Resolution, is generally irrelevant as long as the overall pixel dimensions are correct.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |