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| 2020-03-06 12:20:30 -0600 | received badge | ● Nice Answer (source) |
| 2020-03-06 11:21:20 -0600 | edited answer | 'channel_type': is not a member of 'cv::DataType<_Tp>' This happens when you declare a cv::Mat_<> with an unsupported type. OpenCV only 'instantiates' the template for |
| 2020-03-05 20:30:00 -0600 | received badge | ● Teacher (source) |
| 2020-03-05 18:53:22 -0600 | received badge | ● Editor (source) |
| 2020-03-05 18:53:22 -0600 | edited answer | 'channel_type': is not a member of 'cv::DataType<_Tp>' This happens when you declare a cv::Mat_<> with an unsupported type. OpenCV only 'instantiates' the template for |
| 2020-03-05 12:49:45 -0600 | received badge | ● Necromancer (source) |
| 2020-03-05 11:54:23 -0600 | answered a question | 'channel_type': is not a member of 'cv::DataType<_Tp>' This happens when you declare a cv::Mat_<> with an unsupported type. OpenCV only 'instantiates' the template code |
| 2020-02-11 13:40:56 -0600 | commented question | About contours of the blob,area of blob's hole and contours hierarchy IS_TOPLEVEL(hierarchy) ( (((hierarchy[2]!=-1) && (hierarchy[3]==-1))?1:0) ) This is confusing, shouldn't it be |
| 2019-10-10 18:48:45 -0600 | answered a question | Antialiased polygon fill doesn't respect area borders This is because Point is Point2i, an int type, and your floats are rounded to ints implicitly in the constructor. In you |
| 2019-10-10 18:32:03 -0600 | commented answer | Antialiased polygon fill doesn't respect area borders 4th parameter to fillPoly is not index, it's the number of contours. Passing 0 will draw nothing. |
| 2018-07-24 17:07:53 -0600 | received badge | ● Supporter (source) |
| 2018-07-02 14:30:19 -0600 | commented answer | imwrite: TIFF header TIFFTAG_SAMPLEFORMAT not written Aha. Thank you, that's the key right there: the TIFF spec specifies a default, so OpenCV is intelligently omitting Sampl |
| 2018-07-02 14:02:00 -0600 | marked best answer | imwrite: TIFF header TIFFTAG_SAMPLEFORMAT not written Writing an OpenCV Mat to a TIFF file using Other header tags, TIFFTAG_IMAGEWIDTH, TIFFTAG_IMAGELENGTH, TIFFTAG_BITSPERSAMPLE, and TIFFTAG_SAMPLESPERPIXEL, are correctly set by OpenCV. The OpenCV Mat I'm writing has type CV_8UC3, so it seems as though TIFFTAG_SAMPLEFORMAT should be set to SAMPLEFORMAT_UINT. Why is this tag missing? Is there a simple method to have OpenCV generate this tag as well? I'd like to avoid rewriting this convenient one-liner with a lot of libtiff code, just to get a standard tag. |
| 2018-07-02 14:02:00 -0600 | received badge | ● Scholar (source) |
| 2018-06-29 20:42:57 -0600 | asked a question | imwrite: TIFF header TIFFTAG_SAMPLEFORMAT not written imwrite: TIFF header TIFFTAG_SAMPLEFORMAT not written Writing an OpenCV Mat to a TIFF file using imwrite's default setti |
| 2018-05-30 12:48:29 -0600 | received badge | ● Enthusiast |
| 2018-01-24 13:07:53 -0600 | commented question | How to write the same image format, compression and dpi of the image I read in For my own work training visual neural nets, managing DPI is essential--my training images come from different camera so |