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Date/Time Thumbnail Dimensions User Comment; current: 03:20, 3 March 2019: 2,085 × 1,415 (54 KB): Gandalf the III: Remove black rectangular artifact, use calmer colors
Current events; Random article; ... Wikipedia: Non-free content/Image size calculator. Add languages. ... Non-free content § Image resolution;
Like any resampling operation, changing image size and bit depth are lossy in all cases of downsampling, such as 30-bit to 24-bit or 24-bit to 8-bit palette-based images. While increasing bit depth is usually lossless, increasing image size can introduce aliasing or other undesired artifacts.
Graphics programs also allow you to reduce the image to a particular size before saving. If images are for use in infoboxes only, and are being used under fair use rules, they should not be any larger than the size displayed, e.g. 220–300 pixels wide.
M-JPEG is an intraframe-only compression scheme (compared with the more computationally intensive technique of interframe prediction).Whereas modern interframe video formats, such as MPEG1, MPEG2 and H.264/MPEG-4 AVC, achieve real-world compression ratios of 1:50 or better, M-JPEG's lack of interframe prediction limits its efficiency to 1:20 or lower, depending on the tolerance to spatial ...
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