{"id":268,"date":"2019-10-30T19:11:57","date_gmt":"2019-10-30T19:11:57","guid":{"rendered":"https:\/\/www.tiffedit.com\/blog\/?p=268"},"modified":"2019-10-30T19:17:08","modified_gmt":"2019-10-30T19:17:08","slug":"tiff-compressions","status":"publish","type":"post","link":"https:\/\/www.tiffedit.com\/blog\/archives\/268","title":{"rendered":"TIFF compression."},"content":{"rendered":"\n<h4 class=\"wp-block-heading\">Trying to compress a TIFF file to CCITT4 FAX4 format.&nbsp;  All settings set in Save As, Advanced .&nbsp; Also tried setting them in  Settings , User Settings.&nbsp;&nbsp; <br>The resulting file in Windows detail shows CCITT T.6. <\/h4>\n\n\n\n<p>CCITT Group4 (G4FAX in our program) and CCITT T.6  are the same compression.<\/p>\n\n\n<hr>\n<p><strong>CCITT Group 4 (G4FAX in our program)<\/strong><br>CCITT Group 4 is a widely-used lossless compression algorithm for bitonal images. It is also known as T6, T.6, Fax4, G4, Group 4, or ITU-T Fax Group 4.<\/p>\n<p><strong>CCITT Group 3 (G3FAX in our program)<\/strong><br>CCITT Group 3 is a lossless compressed data format for bi-level images. It is also known as T4, T.4, Fax3, Group 3, G3, or ITU-T Fax Group 3.<\/p>\n<p>It comes in two main varieties: so-called 1-dimensional and 2-dimensional (though both are used on 2-dimensional images). The 1-dimensional variety uses Modified Huffman (MH) compression, and the 2-dimensional variety uses Modified READ (MR) compression.<\/p>\n<p><\/p>\n<p><\/p>\n\n\n<h3 class=\"wp-block-heading\">Available programs:<\/h3>\n\n\n\n<\/p>\n<ul>\n<li>Advanced TIFF Editor Plus (<a href=\"https:\/\/www.tiffedit.com\/advtiffeditorplus_setup.exe\" target=\"_blank\" rel=\"noreferrer noopener\">free download<\/a>, <a href=\"https:\/\/www.tiffedit.com\/tiffeditor_plus.shtml\" target=\"_blank\" rel=\"noreferrer noopener\">home page<\/a>);<\/li>\n<li>Advanced TIFF Editor (<a href=\"https:\/\/www.tiffedit.com\/advtiffeditor_setup.exe\" target=\"_blank\" rel=\"noreferrer noopener\">free download<\/a>, <a href=\"https:\/\/www.tiffedit.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">home page<\/a>);<\/li>\n<\/ul>\n<p>\n\n\n\n\n\n<p>  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trying to compress a TIFF file to CCITT4 FAX4 format.&nbsp; All settings set in Save As, Advanced .&nbsp; Also tried setting them in Settings , User Settings.&nbsp;&nbsp; The resulting file in Windows detail shows CCITT T.6. CCITT Group4 (G4FAX in&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/www.tiffedit.com\/blog\/archives\/268\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2,5,61],"tags":[19,80,81,74,75,77,76,79,78,16],"class_list":["post-268","post","type-post","status-publish","format-standard","hentry","category-advanced_tiff_editor","category-advanced_tiff_editor_plus","category-faq","tag-ccitt","tag-g3","tag-g4","tag-group-3","tag-group4","tag-t-4","tag-t-6","tag-t4","tag-t6","tag-tiff-compression"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/posts\/268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/comments?post=268"}],"version-history":[{"count":4,"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/posts\/268\/revisions"}],"predecessor-version":[{"id":272,"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/posts\/268\/revisions\/272"}],"wp:attachment":[{"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/media?parent=268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/categories?post=268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tiffedit.com\/blog\/wp-json\/wp\/v2\/tags?post=268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}