{"id":12,"date":"2024-04-03T23:31:27","date_gmt":"2024-04-03T20:31:27","guid":{"rendered":"https:\/\/sisu.ut.ee\/imageprocessing\/8-2\/"},"modified":"2024-04-03T23:31:31","modified_gmt":"2024-04-03T20:31:31","slug":"8-2","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/imageprocessing\/8-2\/","title":{"rendered":"8. Spatial domain filtering, part I"},"content":{"rendered":"<p style=\"text-align: justify\"><span style=\"color: #000000\">Filtering is a technique for modifying or enhancing an image. Spatial domain operation or filtering (the processed value for the current pixel processed value for the current pixel depends on both itself and surrounding pixels). Hence Filtering is a neighborhood operation, in which the value of any given pixel in the output image is determined by applying some algorithm to the values of the pixels in the neighborhood of the corresponding input pixel. A pixel\u2019s neighborhood is some set of pixels, defined by their locations relative to that pixel.\u00a0<\/span><\/p><p style=\"text-align: justify\"><span style=\"color: #000000\">In this lecture we will talk about spatial domain operations. Mask or filters will be defined. The general process of convolution and correlation will be introduced via an example. Also smoothing linear filters such as box and weighted average filters will be introduced.<\/span><\/p><p style=\"text-align: center\"><span><div class=\"ratio ratio-16x9 mb-3\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--16x9\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>To view third-party content, please accept cookies.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Change consent<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div><\/span><\/p><p style=\"text-align: center\"><\/p><p style=\"text-align: center\"><a href=\"http:\/\/www.uttv.ee\/naita?id=20143\" target=\"_blank\" rel=\"noopener\">http:\/\/www.uttv.ee\/naita?id=20143<\/a>\u00a0<\/p><p style=\"text-align: center\"><a href=\"http:\/\/youtu.be\/BrHEQwX29xg?list=UU-ETlxdihAaw8Pn6_Zz10lg\" target=\"_blank\" rel=\"noopener\">http:\/\/youtu.be\/BrHEQwX29xg?list=UU-ETlxdihAaw8Pn6_Zz10lg<\/a><\/p><br><div class=\"wp-block-group attached-files-group is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-file\"><a href=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/105\/vid_lecture08fin.ppt\" target=\"_blank\" rel=\"noreferrer noopener\">Lecture_08.ppt<\/a><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Filtering is a technique for modifying or enhancing an image. Spatial domain operation or filtering (the processed value for the current pixel processed value for the current pixel depends on both itself and surrounding pixels). Hence Filtering is a neighborhood &#8230;<\/p>\n","protected":false},"author":40,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-12","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/imageprocessing\/wp-json\/wp\/v2\/pages\/12","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/imageprocessing\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/imageprocessing\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/imageprocessing\/wp-json\/wp\/v2\/users\/40"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/imageprocessing\/wp-json\/wp\/v2\/comments?post=12"}],"version-history":[{"count":2,"href":"https:\/\/sisu.ut.ee\/imageprocessing\/wp-json\/wp\/v2\/pages\/12\/revisions"}],"predecessor-version":[{"id":69,"href":"https:\/\/sisu.ut.ee\/imageprocessing\/wp-json\/wp\/v2\/pages\/12\/revisions\/69"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/imageprocessing\/wp-json\/wp\/v2\/media?parent=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}