2018-01-17 23:03:22 -0600 | asked a question | General edge detection question General edge detection question This isn't necessarily specific to OpenCV, but I had the following question: I noticed |
2018-01-08 21:38:02 -0600 | commented answer | trouble understanding pixel access Update: I solved it: It seems the image needed to be reconverted to BGR to display correctly in imshow |
2018-01-08 21:35:57 -0600 | commented answer | trouble understanding pixel access Update: I solved it: I wasn't updating the saturation component. |
2018-01-08 20:42:56 -0600 | commented answer | trouble understanding pixel access Ok, I see the reference wasn't neccesary, your code works, I'm not sure what my problem was earlier since I tried nearly |
2018-01-08 20:26:48 -0600 | marked best answer | trouble understanding pixel access I am just getting into opencv and set up a demo just to get familiar. I made a function to get and set pixel values, but it doesn't behave how I would expect. In this case I converted the Mat to RGB, but the only channel I can seem to effect is img.[1], which does alter the green component. Anything else, however doesn't work. I converted a mask Mat which is the output of an edge detector to RGB, and then also tried converting that to HSV and changing the img.[0] hue value, but that doesn't seem to do anything. I am asking because even though my application is just experimenting, it seems like I am missing something about how to work with colors, and how values are contained in MAts. For instance, if I just wanted to scan through the edge detector output and change the white pixels to random hue values how would I do that? |
2018-01-08 19:31:34 -0600 | received badge | ● Student (source) |
2018-01-08 16:59:12 -0600 | edited question | trouble understanding pixel access trouble understanding pixel access I am just getting into opencv and set up a demo just to get familiar. I made a func |
2018-01-08 16:58:44 -0600 | edited question | trouble understanding pixel access trouble understanding pixel access I am just getting into opencv and set up a demo just to get familiar. I made a func |
2018-01-08 16:58:44 -0600 | received badge | ● Editor (source) |
2018-01-08 16:56:36 -0600 | asked a question | trouble understanding pixel access trouble understanding pixel access I am just getting into opencv and set up a demo just to get familiar. I made a func |
2017-03-13 04:39:37 -0600 | received badge | ● Supporter (source) |
2017-03-13 04:25:04 -0600 | commented answer | Where are module libs in prebuilt version? Ok, I must have misunderstood. Thanks for clarifying. Just to clarify: In the Windows installation tutorial, where it refers to pre-built libraries, what is it referring to, are they precompiled binaries for the visual studio compiler? Edit: yes. |
2017-03-13 04:24:54 -0600 | received badge | ● Scholar (source) |
2017-03-13 03:59:29 -0600 | asked a question | Where are module libs in prebuilt version? I am trying to run my first example program, but I am getting undefined reference errors. Im am using the prebuilt "vc14" folder with mingw32 and netbeans. I added the headers, lib and bin directories to the project, but the only .lib files to to link to were opencv_world320.lib or opencv_world320d.lib. There are Cmake files in the folder, but no other .lib files for the modules. How am I supposed to get the modules? Thanks for your help. |