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2013-11-01 16:54:12 -0600 | commented answer | How to generate/convertto 1 bit depth image Thank you Douglas, but when I write the Mat (the resultant Mat) object using imwrite to a file as PNG file, the file properties show the 'bit depth' as '8' rather than '1'. Is there special way I need to use imwrite to accomplish this or some other technique exists. Thanks MB |
2013-11-01 16:12:02 -0600 | asked a question | How to generate/convertto 1 bit depth image I am new to OpenCV, I am trying to generate a 1 bit image using OpenCV APIs. Is this possible? Can someone point me to right API. Thank you MB |
2013-10-08 16:04:28 -0600 | commented answer | What is the best way to setup GPU acceleration on Android? Thank you, so the Android Manager that gets installed has all the HW optimizations for a specific platform. It all started, as I was generating a JPEG 2000 file which was taking longer time than (3x longer) JPEG file generation. I thought I am doing something wrong and lack of understanding of NVIDIA terminology/technology etc lead to a search in wrong direction. Thank you for your help. |
2013-10-08 14:24:09 -0600 | commented question | Why the size of generated jp2 file is bigger than original PNG file? opencv documentation says the compression type is determined by the file extension (.jp2 is for JPEG 2000). I do see smaller file sizes when I change the file extension to .jpg, so that part works, but not .jp2. But I can view generated .jp2 file using standard picture viewers etc |
2013-10-08 13:48:22 -0600 | asked a question | Why the size of generated jp2 file is bigger than original PNG file? I used OpenCV in my Android app to generate jpeg 2000 file. Input file is PNG file, I do see the output generated is bigger than the original file. I tried setting different parameters etc, but it did not help. What am I doing wrong here? Thanks for your help. Here is the code snippet Thank you MB |
2013-10-08 11:43:23 -0600 | commented answer | What is the best way to setup GPU acceleration on Android? Agree I do not know much about CUDA or opencv for android. But I would like to use 'gpu' namespace for my android development, what is the best way to set that up, is there a documentation somewhere. |
2013-10-07 14:11:45 -0600 | received badge | ● Editor (source) |
2013-10-07 14:08:16 -0600 | asked a question | What is the best way to setup GPU acceleration on Android? Hi I am trying to use OpenCV in my Android development (dev environment is Eclipse-ADT, Mac OS). I am trying to use JPEG 2000 format for image compression, I kind of found that it is slower and I do see .jp2 file generated is bigger than my original .png file (I am setting CV_IMWRITE_JPEG_QUALITY etc). Here is sample code that I am using I would like to setup CUDA acceleration on my Android machine and try to improve the performance. Do I need to do a build with CUDA enabled etc or is there a simple binary download available? Thanks you MB |