{"id":13448,"date":"2022-10-04T02:38:57","date_gmt":"2022-10-03T21:08:57","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-unrectified-image-from-unwrapping-a-truncated-cone\/"},"modified":"2022-10-04T02:38:57","modified_gmt":"2022-10-03T21:08:57","slug":"solved-unrectified-image-from-unwrapping-a-truncated-cone","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-unrectified-image-from-unwrapping-a-truncated-cone\/","title":{"rendered":"[Solved] Unrectified image from unwrapping a truncated cone"},"content":{"rendered":"

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You have to project your image coordinates to a 2d plane. For a cone you could proceed like this:<\/p>\n

For a simple approach you could ignore the fact that it’s a truncated cone and treat it like a cylinder. For each point (alpha,r,z) on the cone calculate the angle alpha, distance r and height z. For a simple projection use alpha on the x and z on the z axis.<\/p>\n

Your example image does not look like such a projection of a cylinder, rather it looks like the unwinding of a truncated cone. To implement this you must know the geometry of the full cone. If you know the geometry of each point, you need to calculate the distance from the cone tip S and the angle alpha. \"Example\"<\/p>\n<\/p><\/div>\n

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solved Unrectified image from unwrapping a truncated cone <\/p>\n","protected":false},"excerpt":{"rendered":"

[ad_1] You have to project your image coordinates to a 2d plane. For a cone you could proceed like this: For a simple approach you could ignore the fact that it’s a truncated cone and treat it like a cylinder. For each point (alpha,r,z) on the cone calculate the angle alpha, distance r and height … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[881,516],"class_list":["post-13448","post","type-post","status-publish","format-standard","hentry","category-solved","tag-image-processing","tag-matlab"],"yoast_head":"\n[Solved] Unrectified image from unwrapping a truncated cone - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-unrectified-image-from-unwrapping-a-truncated-cone\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Unrectified image from unwrapping a truncated cone - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You have to project your image coordinates to a 2d plane. For a cone you could proceed like this: For a simple approach you could ignore the fact that it’s a truncated cone and treat it like a cylinder. For each point (alpha,r,z) on the cone calculate the angle alpha, distance r and height ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jassweb.com\/solved\/solved-unrectified-image-from-unwrapping-a-truncated-cone\/\" \/>\n<meta property=\"og:site_name\" content=\"JassWeb\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-03T21:08:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/jassweb.com\/solved\/wp-content\/uploads\/2022\/10\/Solved-Unrectified-image-from-unwrapping-a-truncated-cone.png\" \/>\n<meta name=\"author\" content=\"Kirat\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kirat\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-unrectified-image-from-unwrapping-a-truncated-cone\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-unrectified-image-from-unwrapping-a-truncated-cone\\\/\"},\"author\":{\"name\":\"Kirat\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#\\\/schema\\\/person\\\/65c9c7b7958150c0dc8371fa35dd7c31\"},\"headline\":\"[Solved] Unrectified image from unwrapping a truncated cone\",\"datePublished\":\"2022-10-03T21:08:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-unrectified-image-from-unwrapping-a-truncated-cone\\\/\"},\"wordCount\":149,\"publisher\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-unrectified-image-from-unwrapping-a-truncated-cone\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/Solved-Unrectified-image-from-unwrapping-a-truncated-cone.png\",\"keywords\":[\"image-processing\",\"matlab\"],\"articleSection\":[\"Solved\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-unrectified-image-from-unwrapping-a-truncated-cone\\\/\",\"url\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-unrectified-image-from-unwrapping-a-truncated-cone\\\/\",\"name\":\"[Solved] Unrectified image from unwrapping a truncated cone - 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