{"id":2581,"date":"2010-07-30T10:31:37","date_gmt":"2010-07-30T10:31:37","guid":{"rendered":"https:\/\/blogs.mathworks.com\/pick\/2010\/07\/30\/drawing-color-histograms-and-color-clouds\/"},"modified":"2017-01-06T21:29:38","modified_gmt":"2017-01-07T02:29:38","slug":"drawing-color-histograms-and-color-clouds","status":"publish","type":"post","link":"https:\/\/blogs.mathworks.com\/pick\/2010\/07\/30\/drawing-color-histograms-and-color-clouds\/","title":{"rendered":"Drawing Color Histograms and Color Clouds"},"content":{"rendered":"<div xmlns:mwsh=\"https:\/\/www.mathworks.com\/namespace\/mcode\/v1\/syntaxhighlight.dtd\" class=\"content\">\r\n   <introduction>\r\n      <p><a href=\"https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/authors\/5021\">Bob<\/a>'s pick this week is <a href=\"https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/20757-drawing-color-histograms-and-color-clouds\">Drawing Color Histograms and Color Clouds<\/a> by <a href=\"https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/authors\/31381\">Chaitanya Sai Gaddam<\/a>.\r\n      <\/p>\r\n   <\/introduction>\r\n   <p>Color image analysis is harder than you might think. Often the key to a good algorithm is a good visualization. Seeing image\r\n      data different ways can help you decide how to segment desired objects and extract useful measurements. This representation\r\n      is one I had not seen before.\r\n   <\/p>\r\n   <p>Very interesting. Thanks for sharing, Chaitanya.<\/p>\r\n   <p><a href=\"https:\/\/blogs.mathworks.com\/pick\/?p=2581#respond\">Comments?<\/a><\/p><script language=\"JavaScript\">\r\n<!--\r\n\r\n    function grabCode_89332067611a4adb8547f385f20bec64() {\r\n        \/\/ Remember the title so we can use it in the new page\r\n        title = document.title;\r\n\r\n        \/\/ Break up these strings so that their presence\r\n        \/\/ in the Javascript doesn't mess up the search for\r\n        \/\/ the MATLAB code.\r\n        t1='89332067611a4adb8547f385f20bec64 ' + '##### ' + 'SOURCE BEGIN' + ' #####';\r\n        t2='##### ' + 'SOURCE END' + ' #####' + ' 89332067611a4adb8547f385f20bec64';\r\n    \r\n        b=document.getElementsByTagName('body')[0];\r\n        i1=b.innerHTML.indexOf(t1)+t1.length;\r\n        i2=b.innerHTML.indexOf(t2);\r\n \r\n        code_string = b.innerHTML.substring(i1, i2);\r\n        code_string = code_string.replace(\/REPLACE_WITH_DASH_DASH\/g,'--');\r\n\r\n        \/\/ Use \/x3C\/g instead of the less-than character to avoid errors \r\n        \/\/ in the XML parser.\r\n        \/\/ Use '\\x26#60;' instead of '<' so that the XML parser\r\n        \/\/ doesn't go ahead and substitute the less-than character. \r\n        code_string = code_string.replace(\/\\x3C\/g, '\\x26#60;');\r\n\r\n        author = 'Robert Bemis';\r\n        copyright = 'Copyright 2010 The MathWorks, Inc.';\r\n\r\n        w = window.open();\r\n        d = w.document;\r\n        d.write('<pre>\\n');\r\n        d.write(code_string);\r\n\r\n        \/\/ Add author and copyright lines at the bottom if specified.\r\n        if ((author.length > 0) || (copyright.length > 0)) {\r\n            d.writeln('');\r\n            d.writeln('%%');\r\n            if (author.length > 0) {\r\n                d.writeln('% _' + author + '_');\r\n            }\r\n            if (copyright.length > 0) {\r\n                d.writeln('% _' + copyright + '_');\r\n            }\r\n        }\r\n\r\n        d.write('<\/pre>\\n');\r\n      \r\n      d.title = title + ' (MATLAB code)';\r\n      d.close();\r\n      }   \r\n      \r\n-->\r\n<\/script><p style=\"text-align: right; font-size: xx-small; font-weight:lighter;   font-style: italic; color: gray\"><br><a href=\"javascript:grabCode_89332067611a4adb8547f385f20bec64()\"><span style=\"font-size: x-small;        font-style: italic;\">Get \r\n            the MATLAB code \r\n            <noscript>(requires JavaScript)<\/noscript><\/span><\/a><br><br>\r\n      Published with MATLAB&reg; 7.10<br><\/p>\r\n<\/div>\r\n<!--\r\n89332067611a4adb8547f385f20bec64 ##### SOURCE BEGIN #####\r\n%%\r\n% <https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/authors\/5021 Bob>'s \r\n% pick this week is \r\n% <https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/20757-drawing-color-histograms-and-color-clouds Drawing Color Histograms and Color Clouds> \r\n% by \r\n% <https:\/\/www.mathworks.com\/matlabcentral\/fileexchange\/authors\/31381 Chaitanya Sai Gaddam>.\r\n%%\r\n% Color image analysis is harder than you might think. Often the key to a\r\n% good algorithm is a good visualization. Seeing image data different ways\r\n% can help you decide how to segment desired objects and extract useful\r\n% measurements. This representation is one I had not seen before. \r\n%%\r\n% <<https:\/\/www.mathworks.com\/matlabcentral\/fx_files\/20757\/4\/Matlab_show.jpg>>\r\n%%\r\n% Very interesting. Thanks for sharing, Chaitanya.\r\n%%\r\n% <https:\/\/blogs.mathworks.com\/pick\/?p=2581#respond Comments?>\r\n\r\n##### SOURCE END ##### 89332067611a4adb8547f385f20bec64\r\n-->","protected":false},"excerpt":{"rendered":"<p>\r\n   \r\n      Bob's pick this week is Drawing Color Histograms and Color Clouds by Chaitanya Sai Gaddam.\r\n      \r\n   \r\n   Color image analysis is harder than you might think. Often the key to a... <a class=\"read-more\" href=\"https:\/\/blogs.mathworks.com\/pick\/2010\/07\/30\/drawing-color-histograms-and-color-clouds\/\">read more >><\/a><\/p>","protected":false},"author":46,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[],"_links":{"self":[{"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/posts\/2581"}],"collection":[{"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/users\/46"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/comments?post=2581"}],"version-history":[{"count":1,"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/posts\/2581\/revisions"}],"predecessor-version":[{"id":8337,"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/posts\/2581\/revisions\/8337"}],"wp:attachment":[{"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/media?parent=2581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/categories?post=2581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/pick\/wp-json\/wp\/v2\/tags?post=2581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}