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2016-01-14 03:33:37 -0600 | commented question | looking for an image viewer with pixel preview Interesting. I did not know about the many features of imshow. I use it only to get a quick look at my data during debugging. How complicated is is to add additional buttons like previous and next image in series? Or to add a statusbar with additional information (like image 5 /100, filename, ...)? Also I am not interested in zooming in. I like a second windows with a magnification of what lies under the cursor and some text with RGB (or HSV) values next to it. Thanks a lot. |
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2016-01-13 03:08:19 -0600 | asked a question | looking for an image viewer with pixel preview Hi, this question is only indirectly connected to opencv. However, I hope its ok asking it. In my workflow I usually have a time series of images and I examine them using the image viewer Eye Of Gnome. However, recently I saw a usefull feature on a image viewer on the MacBook (I am sorry I forget to ask how the program was named). There was a little window with a large magnification of the section under the mouse cursor. Next to it the RGB values where listed. Does anyone know a image viewer for Linux (Ubuntu 14.04) that allows me to examine image series similar to Eye of Gnome (easy and quick changing the image with one click) and adds a magnification tool with RGB values? Thanks a lot. |
2015-12-21 05:59:58 -0600 | commented question | Install Opencv ON eclipse in ubuntu The linker program ld cannot find the libraries. As I said in my previous comment: I assume that you need a -l in front of all library names. This is so if you use ld directly. However, I don't use eclipse and therefore don't know which influence it has and if it changes the syntax of ld. |
2015-12-21 04:54:21 -0600 | commented question | Install Opencv ON eclipse in ubuntu It seems that you are missing a -l in front of most of your libraries However, I don't know how to change that in eclipse. |
2015-12-21 04:35:28 -0600 | commented question | Install Opencv ON eclipse in ubuntu I don't understand your question. Your library should not be installed in the linker. Do you know what a linker is? |
2015-12-21 03:40:37 -0600 | commented question | Install Opencv ON eclipse in ubuntu ld is your linker. Did you check if it is installed in /usr/bin ? |
2015-12-21 03:16:22 -0600 | commented question | Install Opencv ON eclipse in ubuntu Did you check if the library files are present in /usr/local/lib? There should be files like libopencv_core.so. And make sure that you have read access to the files and read+execute flags for all folders. |
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2015-12-21 03:04:36 -0600 | answered a question | How to install xphoto from opencv_contrib Thanks to berak, I was able to install the current opencv library with the additional opencv_contrib repository on my Ubuntu 14.04 machine. To build and install the library I performed the following steps: These steps are from the install script by Rodrigo Berriel. I adapted them following the very helpful comments by berak. After the installation I was able to build some C++ code calling the white balance function from xphoto: The code could be compiled: and linked: Thanks a lot for your help! |
2015-12-21 02:49:47 -0600 | commented question | How to install xphoto from opencv_contrib Thanks a lot. That worked. |
2015-12-18 09:07:38 -0600 | commented question | How to install xphoto from opencv_contrib Thanks, that was really quite easy. However, that changes the problem to But the compilation does work fine. Why does it not find the balanceWhite() function? |
2015-12-18 09:04:33 -0600 | commented question | How to install xphoto from opencv_contrib I have one further question: What is the common style in this forum for making edits to my posts? Should I keep adding supplements to my original question or should I rewrite the entire questions if I get new information from your answers? Thanks. |
2015-12-18 09:00:58 -0600 | commented question | How to install xphoto from opencv_contrib Thanks a lot for your "blunt guess". I am using the opencv git repository now (instead of the stable relase zip file). I can compile opencv + modules now. However, when I try to link my own code I run into trouble. I documented everything in my original post as Supplement 2. Do you see the mistake in the linking process? Thanks in advance! |
2015-12-17 13:57:28 -0600 | commented question | How to install xphoto from opencv_contrib I added the error message I get when I compile with ximgproc to the original post. |
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2015-12-17 08:04:35 -0600 | asked a question | How to install xphoto from opencv_contrib Hi, I want to use the cv::xphoto::balanceWhite() function in my code. However, I have some problems installing the library. So far I understood that I need opencv 3.0.0 combined with the opencv_contrib repository. To install these I followed mostly the instructions by Rodrigo Berriel and the README.md in the opencv_contrib repository. The steps I performed where (my operating system is Ubuntu 14.04): These dependencies are probably more than I need. I combined the recommendations from several pages. I removed ximgproc and python because these modules gave me some errors during configuration. However, I am only interested in xphoto anyway. This process goes through without any errors. Further, I can compile my opencv code that does not contain any contrib modules so far. But, as soon as I add a call to the following code, compilation fails. I identified the problem so far, that the compiler (clang) does not find the include files. I searched my machine and only found them scattered in the opencv_contrib repository, but not installed in a common place like /usr/include. So my assumption is that opencv got compiled and installed correctly, however the modules from the opencv_contrib repository where only compiled but not installed. Is there a step missing or did I something wrong during the installation? How do you compile opencv together with the xphoto module? Thank you very much. supplement: If I compile with the options: I get the error: (more) |