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| 2012-11-06 15:17:31 -0600 | asked a question | Faster cv::remap on arm v7 devices for undistorting images I'm working on a native android application targeting arm v7 devices. I'm using cv::initUndistortRectifyMap with an output map type of CV_16SC2 to create my lookup tables, and cv::remap with cv::INTER_NEAREST and cv::BORDER_CONSTANT to undistort the images. It's currently the slowest part of my application, where cv::remap has an average execution time of 37.6 milliseconds for 960x720 resolution images. Is anyone aware of a faster method of undistorting images? I looked around the opencv source for a NEON optimized version of remap, but wasn't able to find anything. |