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2018-04-18 09:54:05 -0600 | commented question | ConnectedComponents-like function for grayscale image Ok, yeah it's easier to just show it than to describe it: Pretty much this picture as grayscale and without the lines se |
2018-04-18 09:52:51 -0600 | commented question | ConnectedComponents-like function for grayscale image Ok, yeah it's easier to just show it than to describe it: Pretty much this picture as grayscale and without the lines se |
2018-04-18 01:22:07 -0600 | commented question | ConnectedComponents-like function for grayscale image Thank you for answer! I'm actually asking because I don't think my solution is very reliable and I would have imagined t |
2018-04-16 04:41:37 -0600 | edited question | ConnectedComponents-like function for grayscale image ConnectedComponents-like function for grayscale image I'm looking for help, because I wasn't successful finding a functi |
2018-04-16 04:41:23 -0600 | edited question | ConnectedComponents-like function for grayscale image ConnectedComponents-like function for grayscale image I'm looking for help, because I wasn't successful finding a functi |
2018-04-16 04:39:02 -0600 | edited question | ConnectedComponents-like function for grayscale image ConnectedComponents-like function for grayscale image I'm looking for help, because I wasn't successful finding a functi |
2018-04-16 04:37:08 -0600 | edited question | ConnectedComponents-like function for grayscale image ConnectedComponents-like function for grayscale image I'm looking for help, because I wasn't successful finding a functi |
2018-04-16 04:33:49 -0600 | edited question | ConnectedComponents-like function for grayscale image ConnectedComponents-like function for grayscale image I'm looking for help, because I wasn't successful finding a functi |
2018-04-16 04:33:10 -0600 | asked a question | ConnectedComponents-like function for grayscale image ConnectedComponents-like function for grayscale image I'm lookinf for help, because I wasn't successful finding a functi |
2017-10-27 08:07:59 -0600 | edited answer | Perform functions on a ROI To your second question how to perform a function on the original Image: By default, OpenCV works with the original Mat |
2017-10-27 08:07:19 -0600 | edited answer | Perform functions on a ROI To your second question how to perform a function on the original Image: By default, OpenCV works with the original Mat |
2017-10-27 07:51:02 -0600 | edited answer | Perform functions on a ROI To your second question how to perform a function on the original Image: By default, OpenCV works with the original Mat |
2017-10-27 07:49:27 -0600 | edited answer | Perform functions on a ROI To your second question how to perform a function on the original Image: By default, OpenCV works with the original Mat |
2017-10-27 07:48:51 -0600 | edited answer | Perform functions on a ROI To your second question how to perform a function on the original Image: By default, OpenCV works with the original Mat |
2017-10-27 07:35:28 -0600 | answered a question | Perform functions on a ROI To your second question how to perform a function on the original Image: By default, OpenCV works with the original Mat |
2017-09-25 06:58:36 -0600 | edited answer | Image of Graph to data: how to extract data from a curve on an image of a graph? Just a quick answer. Sorry for the rough code snippets. They are untested and incomplete but might give a rough idea. So |
2017-09-25 06:56:40 -0600 | edited answer | Image of Graph to data: how to extract data from a curve on an image of a graph? Just a quick answer. Sorry for the rough code snippets. They are untested and incomplete but might give a rough idea. So |
2017-09-25 06:29:32 -0600 | edited answer | Image of Graph to data: how to extract data from a curve on an image of a graph? Just a quick answer. Sorry for the rough code snippets. They are untested and incomplete but might give a rough idea. So |
2017-09-25 06:27:15 -0600 | answered a question | Image of Graph to data: how to extract data from a curve on an image of a graph? Just a quick answer. Sorry for the rough code snippets. They are untested and incomplete but might give a rough idea. So |
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2017-04-28 08:44:26 -0600 | commented question | OpenCVs OpenCL doesn´t find any device but the code executed with UMAT runs faster I have both a CUDA and a non-CUDA build and the same behavior and problems with both builds. |
2017-04-28 04:29:21 -0600 | commented question | OpenCVs OpenCL doesn´t find any device but the code executed with UMAT runs faster Im observing a similar behavior as well: If I use the nVidia-Tool for detecting OpenCL devices, three devices are shown on my laptop: CPU, Intel GPU and nVidia GPU. If I use the device search of OpenCV only the Intel GPU shows up on my work laptop and only the nVidia GPU shows up on my private laptop. Both laptops have nearly identical setups (i7-6820HQ with Quadro M100M and i7-4720HQ with GTX960M). |
2017-04-26 11:00:09 -0600 | commented question | UMAT refcount error with setUseOpenCL(false) Thank you for your response! The error occurs when I set OpenCL to false which - as far as I understand - will make OpenCV call the Mat functions internally so that CopyTo() should be a pure CPU to CPU copy with no GPU involved. If I set OpenCL to true and use the GPU, the whole code works fine. The copying and all lines below work fine except for the convertTo() line. |
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2017-04-26 03:38:13 -0600 | asked a question | UMAT refcount error with setUseOpenCL(false) Currently I'm rewritting some code from Mat to UMat that will hopefully run both with or without OpenCL depending on the OpenCL flag. Now I'm getting a refcount error I don't quite understand. It only shows up if setUseOpenCL is set to false. (Since the images I work with are around 196Megapixel-RGB-images I do prefer avoiding deep copies as much as possible and I would like to understand why in the code below I'm not allowed to write into the orginal UMat.) By the way: is there an easy way to simply convert any image (gray, bgr, bgra) to gray or even directly to CV_32FC1 or do I always have to manually check if the image is bgra or bgr or gray and then do a conversion?
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