{"id":6854,"date":"2015-03-01T16:30:51","date_gmt":"2015-03-01T21:30:51","guid":{"rendered":"httpss:\/\/www.powenko.com\/wordpress\/?p=6854"},"modified":"2015-03-01T16:30:51","modified_gmt":"2015-03-01T21:30:51","slug":"06-cvsetmousecallback-%e6%bb%91%e9%bc%a0%e5%8b%95%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/www.powenko.com\/wordpress\/?p=6854","title":{"rendered":"06 cvSetMouseCallback \u6ed1\u9f20\u52d5\u4f5c"},"content":{"rendered":"

\u76ee\u7684\uff1a<\/h1>\n
cvSetMouseCallback \u6ed1\u9f20\u52d5\u4f5c<\/span><\/tt><\/pre>\n
\u51fd\u6578\u4ecb\u7d39\uff1a<\/h2>\n
cvInRangeS \u627e\u51fa\u7279\u5b9a\u7684\u984f\u8272\uff0c\u627e\u5230\u7684\u8a71\uff0c\u5c31\u986f\u793a\u70ba\u767d\u8272\uff0c\u4e0d\u7136\u70ba\u9ed1\u8272\u3002<\/span><\/tt><\/pre>\n
\u53c3\u6578\u503c\uff1a<\/h2>\n
cvSetMouseCallback(<\/span>“image”<\/span>, mymouse);
\n<\/span>void<\/span> mymouse(<\/span>int<\/span> event, <\/span>int<\/span> x, <\/span>int<\/span> y, <\/span>int<\/span> flag, <\/span>void<\/span>* param)<\/span><\/p>\n
\n
\u4f7f\u7528\u7bc4\u4f8b\uff1a<\/span><\/h2>\n
sample13_Mouse_\u6ed1\u9f20\u52d5\u4f5c<\/p>\n
\r\n#include <opencv2\/core\/core.hpp>\r\n#include <opencv2\/highgui\/highgui.hpp>\r\n#include <opencv2\/opencv.hpp>\r\n#include <iostream>\r\n#include <string.h>\r\n#include <fstream>\r\nusing namespace cv;\r\n\r\n\r\nIplImage * image;\r\n\r\n\r\nvoid mymouse(int event, int x, int y, int flag, void* param)\r\n{\r\n    \r\n    static int mousedown=0;\r\n    \r\n    if(event==CV_EVENT_LBUTTONDOWN){\r\n        cvCircle(image, cvPoint(x,y), 8,cvScalar(0,0,255));\r\n        mousedown=1;\r\n    }\r\n    if(event==CV_EVENT_MOUSEMOVE && mousedown==1){\r\n        cvCircle(image, cvPoint(x,y), 2,cvScalar(0,255,0));\r\n    }\r\n    if(event==CV_EVENT_LBUTTONUP){\r\n        cvCircle(image, cvPoint(x,y), 8,cvScalar(255,0,0));\r\n        mousedown=0;\r\n    }\r\n    cvShowImage("image", image);\r\n}\r\n\r\n\r\nint main(int argc,char **argv)\r\n{\r\n    int width,height;\r\n    if(argc<=1)\r\n    {\r\n        std::cout<<"Error:Please Load a picture!"<<std::endl;\r\n        return 0;\r\n    }\r\n    \/\/\u5efa\u7acb\u8996\u7a97\r\n    namedWindow("image",CV_WINDOW_AUTOSIZE);\r\n    \/\/\u8b80\u53d6\u5716\u7247\r\n    image=cvLoadImage(argv[1]);\r\n    width=image->width;\r\n    height=image->height;\r\n    \r\n    cvShowImage("image", image);\r\n    cvSetMouseCallback("image", mymouse);\r\n    waitKey(0);\r\n    cvDestroyAllWindows();\r\n    return 0;\r\n}\r\n\r\n\r\n\r\n<\/pre>\n
\u7d50\u679c\uff1a<\/h2>\n
\"Screen<\/a><\/p>\n
\u88dc\u5145\u8cc7\u6599\uff1a<\/h2>\n","protected":false},"excerpt":{"rendered":"
\u76ee\u7684\uff1a cvSetMouseCallback \u6ed1\u9f20\u52d5\u4f5c \u51fd\u6578\u4ecb\u7d39\uff1a cvInRangeS \u627e\u51fa\u7279\u5b9a\u7684\u984f\u8272\uff0c\u627e\u5230 […]<\/p>\n","protected":false},"author":1,"featured_media":6855,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[248],"tags":[],"class_list":["post-6854","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ch02-opencv-api"],"_links":{"self":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/6854"}],"collection":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6854"}],"version-history":[{"count":1,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/6854\/revisions"}],"predecessor-version":[{"id":6856,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/6854\/revisions\/6856"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/6855"}],"wp:attachment":[{"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.powenko.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}