{"id":2164,"date":"2021-08-09T04:58:04","date_gmt":"2021-08-09T04:58:04","guid":{"rendered":"\/?p=2164"},"modified":"2021-08-09T05:34:13","modified_gmt":"2021-08-09T05:34:13","slug":"tweets-about-lossless-sharing-of-astronomical-images","status":"publish","type":"post","link":"\/?p=2164","title":{"rendered":"Tweets about lossless sharing of astronomical images"},"content":{"rendered":"<p>Related: A desktop photo scanner can get 6400 dots per inch over 8.5*11 inches. That is 3.82976\u00a0 GigaPixels with 32 bit colors.<\/p>\n<p>See also: PetaPixelProject.com with many 10 to 100 GigaPixel images. They use &#8220;Atlas Browser Based Viewer&#8221; that seems to work.\u00a0 I am not recommending it, just noting they seem to be able to show large lossless? images fairly readily.<\/p>\n<p>&#8220;GigaPixel&#8221; on Google search has 930,000 entry points &#8211; a fairly mature topic. &#8220;PetaPixel&#8221; is mostly commercial now, but I see &#8220;2.2 Gigapixel photo&#8221;. For the Internet, I want consistency and ease of use for 4.8 Billion users if they want to do science, not pretty pictures.<\/p>\n<p><span class=\"css-901oao css-16my406 r-poiln3 r-bcqeeo r-qvutc0\">Go down a ways and there is a 24113*23588*3 lossless image of Titan PIA17655 &#8220;Titans North Full Resolution&#8221; at <\/span><a class=\"css-4rbku5 css-18t94o4 css-901oao css-16my406 r-xyrcl7 r-1loqt21 r-poiln3 r-bcqeeo r-1ny4l3l r-1ddef8g r-tjvw6i r-qvutc0\" dir=\"ltr\" role=\"link\" href=\"https:\/\/t.co\/gVu7L67AaX?amp=1\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"css-901oao css-16my406 r-poiln3 r-hiw28u r-qvk6io r-bcqeeo r-qvutc0\" aria-hidden=\"true\">https:\/\/<\/span>photojournal.jpl.nasa.gov\/target\/titan<\/a><span class=\"css-901oao css-16my406 r-poiln3 r-bcqeeo r-qvutc0\"> That is 568.777444 MegaPx. People do share useful forms, but most web images use lossy formats. What is ExaScale for, if not to share real data?<\/span><\/p>\n<p>Oh, I get your point. Twitter itself won&#8217;t store much. But that does not prevent anyone from sharing by link. I felt obligated to learn what Twitter is doing, can do, and ought to do. Nice work you are doing!! I think Internet sharing should be lossless.<\/p>\n<p><span class=\"css-901oao css-16my406 r-poiln3 r-bcqeeo r-qvutc0\">Here is a 10848*10848 image in jpeg, so almost completely useless. That is 117,679,104 or 117.679 MegaPixels. And the same image in GeoTiff (lossless). <\/span><a class=\"css-4rbku5 css-18t94o4 css-901oao css-16my406 r-xyrcl7 r-1loqt21 r-poiln3 r-bcqeeo r-1ny4l3l r-1ddef8g r-tjvw6i r-qvutc0\" dir=\"ltr\" role=\"link\" href=\"https:\/\/t.co\/bv0lONVEaL?amp=1\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"css-901oao css-16my406 r-poiln3 r-hiw28u r-qvk6io r-bcqeeo r-qvutc0\" aria-hidden=\"true\">https:\/\/<\/span>star.nesdis.noaa.gov\/GOES\/fulldisk.<span class=\"css-901oao css-16my406 r-poiln3 r-hiw28u r-qvk6io r-bcqeeo r-qvutc0\" aria-hidden=\"true\">php?sat=G16<\/span><span class=\"css-901oao css-16my406 r-poiln3 r-bcqeeo r-lrvibr r-qvutc0\" aria-hidden=\"true\">\u2026<\/span><\/a><span class=\"css-901oao css-16my406 r-poiln3 r-bcqeeo r-qvutc0\"> Just need a link to a file.<\/span><\/p>\n<p>Yes, there are lossless formats offered. But you gave a lossy format first and that is the one probably copied, that ends up all over the Internet. Thank you the beautiful image, but more thank you for the beautiful data.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Related: A desktop photo scanner can get 6400 dots per inch over 8.5*11 inches. That is 3.82976\u00a0 GigaPixels with 32 bit colors. See also: PetaPixelProject.com with many 10 to 100 GigaPixel images. They use &#8220;Atlas Browser Based Viewer&#8221; that seems to work.\u00a0 I am not recommending it, just noting they seem to be able to <br \/><a class=\"read-more-button\" href=\"\/?p=2164\">Read More &raquo;<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,20,26],"tags":[],"class_list":["post-2164","post","type-post","status-publish","format-standard","hentry","category-all-sky-cameras","category-collaborative-model-and-data","category-web-policies-internet-polices"],"_links":{"self":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts\/2164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2164"}],"version-history":[{"count":4,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/2164\/revisions"}],"predecessor-version":[{"id":2168,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/2164\/revisions\/2168"}],"wp:attachment":[{"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2164"},{"taxonomy":"post_tag","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}