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Downsampling vs. Interpolation

Downsampling vs. Interpolation

Downsampling onscreen works well, since it's easy to remove similarly colored pixels without changing the image much. Even though the photo loses pixels and thus some detail, quality doesn't suffer much (Figure A.8 and Figure A.9 on the previous page). Along with the fact that onscreen images are extremely bright because monitors emit light, whereas paper reflects light, minimal downsampling helps explain why photos look good on monitors at full size.

Figure A.8. The original image at 100 percent.



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