{"id":6248,"date":"2014-09-09T16:32:44","date_gmt":"2014-09-09T07:32:44","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=6248"},"modified":"2014-09-09T16:34:39","modified_gmt":"2014-09-09T07:34:39","slug":"%e7%94%bb%e5%83%8f%e8%aa%8d%e8%ad%98%e3%81%ae%e3%83%97%e3%83%ac%e5%8a%a0%e5%b7%a5%e3%81%ab-f-%e3%82%92%e4%bd%bf%e3%81%86","status":"publish","type":"post","link":"https:\/\/www.moonmile.net\/blog\/archives\/6248","title":{"rendered":"\u753b\u50cf\u8a8d\u8b58\u306e\u30d7\u30ec\u52a0\u5de5\u306b F# \u3092\u4f7f\u3046"},"content":{"rendered":"

\u6700\u7d42\u7684\u306b\u306f OpenCV \u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u306f\u305a\u306a\u306e\u3067\u3059\u304c\u3001\u3044\u3061\u3044\u3061 C++ \u3067\u7d44\u3080\u306e\u3082\u9762\u5012\u306a\u306e\u3067\u3001\u4e8b\u524d\u52a0\u5de5\u306e\u90e8\u5206\u3092 F# \u3067\u7d44\u307f\u307e\u3059\u3002<\/p>\n

\"image\"<\/a><\/p>\n

\u3053\u3093\u306a\u753b\u50cf\u3092\u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u306b\u5909\u3048\u305f\u308a\u30012\u5024\u5316\u3059\u308b\u3060\u3051\u3067\u3059\u306d\u3002<\/p>\n

\"image\"<\/a>\"image\"<\/a><\/p>\n

\"image\"<\/a>\"image\"<\/a><\/p>\n

\u25a0\u753b\u50cf\u52a0\u5de5\u306b\u30d1\u30a4\u30d7\u3092\u4f7f\u3046<\/p>\n

C++ \u3067 OpenCV \u3092\u4f7f\u3063\u3066\u3044\u305f\u9803\u304b\u3089\u8003\u3048\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u753b\u50cf\u52a0\u5de5\u306e\u30d5\u30a3\u30eb\u30bf\u90e8\u5206\u306f\u30d1\u30a4\u30d7\uff08>>\uff09\u3092\u4f7f\u3046\u3068\u30b9\u30e0\u30fc\u30b9\u3067\u3059\u3002\u5f53\u7136\u30d5\u30a3\u30eb\u30bf\u306a\u3093\u3060\u304b\u3089\u3001\u753b\u50cf\u95a2\u4fc2\u306e\u591a\u7a2e\u306e filter \u3068\u540c\u3058\u306a\u306e\u3067\u5f53\u7136\u3068\u3044\u3048\u3070\u5f53\u7136\u3002<\/p>\n

\r\n        let path = @&quot;D:\\work\\PiVistion\\src\\PiVision\\FsVision.Test\\data&#92;&#48;01.bmp&quot;\r\n        let pi = FsVision.LoadForm( path )\r\n        \/\/ \u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\r\n        pi |> Pixel.toGray \r\n           |> FsVision.SavePixel( @&quot;D:\\work\\PiVistion\\src\\PiVision\\FsVision.Test\\data&#92;&#48;01-pi-gray.bmp&quot; )\r\n\r\n<\/pre>\n
F# \u3067\u306f\u3001\u3053\u3093\u306a\u98a8\u306b |> \u3092\u4f7f\u3063\u3066\u3064\u306a\u3052\u307e\u3059\u3002<\/p>\n
\u25a0PowerPack \u3092\u4f7f\u3046\u304b\u3069\u3046\u304b\uff1f<\/p>\n
The Old F# “PowerPack” – Home
\nhttps:\/\/fsharppowerpack.codeplex.com\/<\/a>
\nfsprojects\/powerpack
\nhttps:\/\/github.com\/fsprojects\/powerpack<\/a><\/p>\n
\u753b\u50cf\u52a0\u5de5\u306e\u5834\u5408\u30012\u6b21\u5143\u30de\u30c8\u30ea\u30af\u30b9\u304c\u983b\u767a\u3059\u308b\u306e\u3067\u3001F# powerpack \u3092\u4f7f\u3046\u306e\u304c\u30d9\u30bf\u30fc\u306a\u3093\u3067\u3057\u3087\u3046\u304c\u3001\u8981\u7d20\u3068\u3057\u3066 RGBA \u3092\u4f7f\u308f\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u306e\u3067\u3001Matix<RGBA> \u3068\u5b9a\u7fa9\u3057\u305f\u3044\u3093\u3067\u3059\u3088\u306d\u3002\u304c\u3001\u304c\u3001\u306a\u3093\u3068\u306a\u304f\u3046\u307e\u304f\u52d5\u304b\u306a\u3044\u3002Matrix<‘T> \u306b\u306a\u3063\u3066\u3044\u308b\u3051\u3069\u3001\u5b9f\u8cea Matirx<float> \u3057\u304b\u52d5\u304b\u306a\u3044\u3088\u3046\u3067\u3059\u3002RGBA \u3092\u5225\u3005\u306b\u6271\u3063\u3066\u3082\u826f\u3044\u306e\u3067\u3059\u304c\u3001\u8a66\u3057\u3066\u307f\u308b\u3068 F# \u306e List#Item \u306f\u7d50\u69cb\u9045\u304f\u3066\u3001\u77ed\u6642\u9593\u306b 640×480 \u306e\u753b\u7d20\u6570\u3092\u51e6\u7406\u3059\u308b\u306e\u306f\u96e3\u3057\u305d\u3046\u3067\u3059\u3002\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u306b for it in lst do \u306a\u611f\u3058\u3067\u30a4\u30c6\u30ec\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u3059\u308c\u3070\u7d50\u69cb\u306a\u30b9\u30d4\u30fc\u30c9\u3067\u52d5\u304d\u307e\u3059\u3002\u307e\u3042\u3001\u6709\u9650\u8981\u7d20\u6cd5\u306e\u4ef6\u3082\u3042\u308b\u3057\u3001\u30de\u30c8\u30ea\u30af\u30b9\u95a2\u4fc2\u306f\u81ea\u4f5c\u3057\u307e\u3057\u3087\u3046\u3001\u3068\u3044\u3046\u3053\u3068\u3067 powerpack \u7121\u3057\u3067\u4f5c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3069\u3061\u3089\u304b\u3068\u3044\u3046\u3068\u3001OpenCV \u306e\u5404\u7a2e\u95a2\u6570\u3092 F# \u304b\u3089\u4f7f\u3046\u3068\u3053\u308d\u306b\u529b\u3092\u5165\u308c\u305f\u611f\u3058\u3002<\/p>\n
\u25a0RGB\/YUV\/YIQ\/HSV \u306e\u76f8\u4e92\u5909\u63db<\/p>\n
Zaku\u8a8d\u8b58(2) | Moonmile Solutions Blog
\nhttp:\/\/www.moonmile.net\/blog\/archives\/601<\/a><\/p>\n
\u304b\u3064\u3066 Zaku \u8a8d\u8b58\uff084\u5e74\u3082\u524d\u306e\u8a18\u4e8b\u306b\u306a\u308b\u306e\u304b\uff09\u3092\u3084\u308d\u3046\u3068\u601d\u3063\u3066\u3001\u8272\u76f8\u3068\u304b\u8f1d\u5ea6\u3068\u304b\u3092\u6271\u3063\u305f\u306e\u3067\u3001\u3053\u308c\u306e F# \u7248\u3082\u4f5c\u3063\u3066\u304a\u304d\u307e\u3059\u30023×3 \u304b 4×4 \u306e\u30de\u30c8\u30ea\u30af\u30b9\u306a\u3093\u3060\u304c\u3001\u3053\u308c\u3092\u3044\u3061\u3044\u3061\u81ea\u524d\u306e matrix \u306b\u901a\u3059\u3068\u9045\u3044\u306e\u3067\u3001\u76f4\u63a5\u8a08\u7b97\u3057\u307e\u3059\u3002\u3055\u307b\u3069\u624b\u9593\u3067\u306f\u306a\u3044\u3057\u3002<\/p>\n
 \r\ntype RGB = { R:float; G:float; B:float; }\r\ntype YUV = { Y:float; U:float; V:float }\r\ntype YIQ = { Y:float; I:float; Q:float }\r\ntype HSV = { H:float; S:float; V:float }\r\n\r\nmodule Pixel =\r\n\r\n    type Conv =\r\n        static member toYUV (rgb:RGB) =\r\n            let y =  0.299 * rgb.R +  0.587 * rgb.G +  0.114 * rgb.B \r\n            let u = -0.169 * rgb.R -  0.331 * rgb.G +  0.500 * rgb.B \r\n            let v =  0.500 * rgb.R + -0.419 * rgb.G -  0.081 * rgb.B \r\n            { Y=y; U=u; V=v }\r\n        static member toRGB (yuv:YUV) =\r\n            let r =  1.000 * yuv.Y +  0.000 * yuv.U +  1.402 * yuv.V \r\n            let g =  1.000 * yuv.Y -  0.344 * yuv.U -  0.714 * yuv.V \r\n            let b =  1.000 * yuv.Y +  1.772 * yuv.U +  0.000 * yuv.V \r\n            { R=r; G=g; B=b }\r\n        static member toYIQ ( rgb:RGB ) =\r\n            let y = 0.2990 * rgb.R + 0.5870 * rgb.G + 0.1140 * rgb.B\r\n            let i = 0.5959 * rgb.R - 0.2750 * rgb.G - 0.3210 * rgb.B\r\n            let q = 0.2065 * rgb.R - 0.4969 * rgb.G + 0.2904 * rgb.B\r\n            { Y=y; I=i; Q=q }\r\n        static member toRGB ( yiq:YIQ ) =\r\n            { R = 1.001 * yiq.Y + 0.955 * yiq.I + 0.622 * yiq.Q;\r\n              G = 0.999 * yiq.Y - 0.272 * yiq.I - 0.648 * yiq.Q;\r\n              B = 1.004 * yiq.Y - 1.106 * yiq.I + 1.704 * yiq.Q; }\r\n        static member toHSV ( yiq:YIQ ) =\r\n            { H = System.Math.Atan2(yiq.I, yiq.Q) ;\r\n              S = Math.Sqrt( yiq.I * yiq.I + yiq.Q * yiq.Q) ;\r\n              V = yiq.Y; }\r\n        static member toYIQ ( hsv:HSV ) =\r\n            { Y = hsv.V; \r\n              I = hsv.S * Math.Sin( hsv.H ) ;\r\n              Q = hsv.S * Math.Cos( hsv.H ) ; }\r\n        static member norm (rgb:RGB) =\r\n            let r = if rgb.R < 0.0 then 0.0 else if rgb.R > 1.0 then 1.0 else rgb.R\r\n            let g = if rgb.G < 0.0 then 0.0 else if rgb.G > 1.0 then 1.0 else rgb.G\r\n            let b = if rgb.B < 0.0 then 0.0 else if rgb.B > 1.0 then 1.0 else rgb.B\r\n            { R=r; G=g; B=b }\r\n\r\n    let map (f:(RGB->RGB)) (pi:pixels) =\r\n        pixels [ \r\n            for row in pi.Data do\r\n                yield [ for it in row do\r\n                            yield f( it )\r\n                        ]] \r\n    \/\/\/ <summary>\r\n    \/\/\/ gray scale filter\r\n    \/\/\/ <\/summary>\r\n    \/\/\/ <param name=&quot;pi&quot;><\/param>\r\n    let toGray (pi:pixels) =\r\n        pi |> map ( fun x ->\r\n            \/\/ \u52a0\u91cd\u5e73\u5747 \r\n            let c = (0.896 * x.R + 1.76 * x.G + 0.34 * x.B) \/ 3.0\r\n            { R=c; G=c; B=c } )\r\n    \r\n    let to2Value (ce:float) (pi:pixels) =\r\n        pi |> map ( fun x ->\r\n            let c = (0.896 * x.R + 1.76 * x.G + 0.34 * x.B) \/ 3.0\r\n            if c <= ce then { R=0.; G=0.; B=0. } else { R=1.; G=1.; B=1. }  \r\n            )\r\n\r\n    \/\/\/ <summary>\r\n    \/\/\/ sepia filter\r\n    \/\/\/ <\/summary>\r\n    \/\/\/ <param name=&quot;pi&quot;><\/param>\r\n    let toSepia (pi:pixels) =\r\n        pi |> map ( fun x -> \r\n            let r = 0.393 * x.R + 0.769 * x.G + 0.189 * x.B\r\n            let g = 0.349 * x.R + 0.686 * x.G + 0.168 * x.B\r\n            let b = 0.272 * x.R + 0.534 * x.G + 0.131 * x.B \r\n            { R=r; G=g; B=b } |> Conv.norm)\r\n\r\n\r\n<\/pre>\n
\u3053\u3063\u3061\u306f\u3044\u305a\u308c\u6574\u7406\u3057\u3066 github \u306b\u4e0a\u3052\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6700\u7d42\u7684\u306b\u306f OpenCV \u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u306f\u305a\u306a\u306e\u3067\u3059\u304c\u3001\u3044\u3061\u3044\u3061 C++ \u3067\u7d44\u3080\u306e\u3082\u9762\u5012\u306a\u306e\u3067\u3001\u4e8b\u524d\u52a0\u5de5\u306e\u90e8\u5206\u3092 F# \u3067\u7d44\u307f\u307e\u3059\u3002 \u3053\u3093\u306a\u753b\u50cf\u3092\u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u306b\u5909\u3048\u305f\u308a\u30012\u5024\u5316\u3059\u308b\u3060\u3051\u3067\u3059\u306d\u3002 \u25a0\u753b\u50cf\u52a0\u5de5\u306b\u30d1\u30a4\u30d7\u3092\u4f7f\u3046 … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[59],"tags":[],"class_list":["post-6248","post","type-post","status-publish","format-standard","hentry","category-f"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/6248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/comments?post=6248"}],"version-history":[{"count":3,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/6248\/revisions"}],"predecessor-version":[{"id":6251,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/6248\/revisions\/6251"}],"wp:attachment":[{"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=6248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=6248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=6248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}