Standard test image

<h2 id="historical-origins">Historical origins</h2>
<p>Test images as transmission system calibration material probably date back to the original Paris to Lyon fax link. Analogue Fax equipment (and photographic equipment for the printing trade) were the largest user groups of the standardized image for calibration technology until the coming of television and digital image transmission systems.
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<h2 id="common-test-image-resolutions">Common test image resolutions</h2>
<p>The standard <a href="/facts/Image_resolution/NAL4uFV9">resolution</a> of the images is usually 512×512 or 720×576. Most of these images are available as <a href="/facts/Tagged_Image_File_Format/TjBJcLeT">TIFF</a> files from the <a href="/facts/University_of_Southern_California/N0v9R5gs">University of Southern California</a>'s Signal and Image Processing Institute.<a class="footnote-ref" id="fnref:1" href="#fn:1"><sup>1</sup></a> <a href="/facts/Kodak/zMnK74Cp">Kodak</a> has released 768×512 images, available as <a href="/facts/Portable_Network_Graphics/mwgK6xw5">PNGs</a>, that was originally on <a href="/facts/Photo_CD/Y4Klg0hA">Photo CD</a> with higher resolution,  that are widely used for comparing image compression techniques.<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a>
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<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Carole_Hersee/HPkWuxGT">Carole Hersee</a></li>
<li><a href="/facts/FERET_database/cwqul771">FERET database</a> (DARPA/NIST face recognition database)</li>
<li><a href="/facts/Lenna/kuS8tycQ">Lenna</a></li>
<li><a href="/facts/List_of_common_3D_test_models/RPhlvd0l">List of common 3D test models</a></li></ul>

<h2 id="external-links">External links</h2>
<ul><li><a href="http://sipi.usc.edu/database/">The USC-SIPI Image Database</a> — A large collection of standard test images</li>
<li><a href="http://www.cvg.rdg.ac.uk/datasets/index.html">Vision @ Reading</a> <a href="https://archive.today/20121223143333/http://www.cvg.rdg.ac.uk/datasets/index.html">Archived</a> 2012-12-23 at <a href="/facts/Archive.today/B9vA7Vmt">archive.today</a> — <a href="/facts/University_of_Reading/nohWeG6A">University of Reading</a>'s set of popular test images</li>
<li><a href="http://www.cipr.rpi.edu/resource/stills/index.html">CIPR still images</a> <a href="https://web.archive.org/web/20180320184326/http://www.cipr.rpi.edu/resource/stills/index.html">Archived</a> 2018-03-20 at the <a href="/facts/Wayback_Machine/nmQ3a6JC">Wayback Machine</a> — Some sets of test images at <a href="/facts/Rensselaer_Polytechnic_Institute/e3smoUMm">Rensselaer Polytechnic Institute</a> (including the Kodak set)</li>
<li><a href="http://r0k.us/graphics/kodak/">True-color Kodak test images</a> — The Kodak set in <a href="/facts/Portable_network_graphics/mwgK6xw5">PNG</a> format</li>
<li><a href="https://testimages.org">TESTIMAGES</a> — Large collection of sample images designed for analysis and quality assessment of different kinds of displays (i.e. monitors, televisions and digital cinema projectors) and image processing techniques</li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>USC-SIPI Image Database <a href="http://sipi.usc.edu/database" target="_blank">http://sipi.usc.edu/database</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>Rich Franzen. "Kodak Lossless True Color Image Suite". Retrieved 2007-08-13. <a href="http://r0k.us/graphics/kodak/" target="_blank">http://r0k.us/graphics/kodak/</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
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Standard test image open-in-new

Standard test image