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2013-02-07 07:17:02 -0600 | asked a question | draw circle in cv::mat Hi people, I'm having a hard time drawing nice circle in a cv::Mat I actually managed to draw something, but it looks like a star than a circle, and i can't understand why. Here's my code to generate it : Do you have any why it does this instead of a real nice and soft circle ? Is there anyway to draw a proper circle with openCV ? |
2013-02-06 12:48:45 -0600 | commented answer | Display IplImage in webbrowsers ;) Just here to say that i manage, with your precious help, to display the wanted qrcode in my webbrowser. So i guess we could just say, mission complete. It's actually pretty easy ... once you know how to do ;) Here we are, thank's again mate, was nice learning from you ;) |
2013-02-06 12:04:57 -0600 | commented answer | Display IplImage in webbrowsers Hey, it's not actually my website lol, i was just writing random stuff and it turned out to be a real website ;) |
2013-02-06 11:29:17 -0600 | commented answer | Display IplImage in webbrowsers héhé, no problem, even though it was not usefull to my app, it was nice reading about something i don't know ;) First solution wouldnt do. My goal is to send from a html script an url to encode in GET data. Then, i would like to use my cgi-bin c++ app to qr encode this url, and print it into the browser. From the html script, it would look like it : <img src="http://www.*.com/cgi-bin/qrcode.cgi?url=http://www.yop.com" /> So the only solution possible is solution 2. |
2013-02-06 11:15:47 -0600 | commented answer | Display IplImage in webbrowsers Awesome !! thank you so much for this, i'll try to implement and understand it !! |
2013-02-06 11:04:57 -0600 | commented answer | Display IplImage in webbrowsers Thank you for your support. It's very nice of you ;) I actually can't see the purpose of the socket in my app. Usually, i'm in php where everthing's easy ;) and once you have the "data" of the image as i do width outbuf, you can do a simple : echo 'data:image/jpeg;base64,' . base64_encode($data); I can't understand why it can't be done here and why we must go through sockets. I'm doing this app only for fun, and i can't thank you enough for your help since no one around me knows c++ or opencv ;) |
2013-02-06 10:45:48 -0600 | commented answer | Display IplImage in webbrowsers I will try to understand this. You were assuming write actually. I'm indeed triyng to write a small website in c++, i just don't how to do it yet. My application is very simple. It's encoding qrcode. I already manage to have an array with 0 and 1 representing the black pixels and the white pixels of the qrcode. Then, i wanted to use opencv's function to transform this array into a jpeg image and i managed to do so with you help and the function imencode. And now that my image is stored into outbuf i want this image to be printed into the webbrowser (firefox for me). I know nothing about socket, and i have to say that what i read seems really difficult to me. I still wonder i there's another way. Anyway, all of this seems kind of hard since i ... (more) |
2013-02-06 09:30:23 -0600 | commented answer | Display IplImage in webbrowsers Thanks a lot for your answer, i was struggling for days. SO far i managed to make it work until imencode. But after, i've never used such things in c++ : sprintf(head,"--mjpegstream\r\nContent-Type: image/jpeg\r\nContent-Length: %lu\r\n\r\n",outlen); write(sock,head,strlen(head)); write(sock,(char*)(&outbuf[0]),outlen); I'm not sure how to define and use head, outlen an sock ... could you please explain me ? Thanks again, your help is very appreciated !! |
2013-02-06 06:40:05 -0600 | commented question | Display IplImage in webbrowsers Thank's for answering, but your trick won't do. The purpose of my program is very simple. The user will give me an array containing 0 and 1, and i will convert it in an image that can be displayed in web browsers. ;) |
2013-02-06 03:10:44 -0600 | asked a question | Display IplImage in webbrowsers Hi people, I'm currently building a small personal project in c++ on a linux server and i am facing a problem i can't solve myself. I would like to know if it was possible to display in a web browser an IplImage image. I first thought i would be able to convert it in png and then encode it in base64 and finally display it with a simple cout<< But i can't figure how to do so. So i would like to know if someone could guide me trough or if there is a simpler way of doing. Many thanks for your time and help. Cheers to everyone ;) PS: i precise that i'm not at all an expert in c++. I used to practice it a lot at school, but it's a long time ago now ;) |