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author | Chris Xiong <chirs241097@gmail.com> | 2022-08-27 00:55:38 -0400 |
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committer | Chris Xiong <chirs241097@gmail.com> | 2022-08-27 00:55:38 -0400 |
commit | 96fc17b99d56eb636c894c5be9ab39bfdb4ba454 (patch) | |
tree | f558b185b55eddc83e9eb77a695b93290000a96e /tests/image_util_tests.cpp | |
download | deduper-96fc17b99d56eb636c894c5be9ab39bfdb4ba454.tar.xz |
Initial code dump.
Diffstat (limited to 'tests/image_util_tests.cpp')
-rw-r--r-- | tests/image_util_tests.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/tests/image_util_tests.cpp b/tests/image_util_tests.cpp new file mode 100644 index 0000000..af77f75 --- /dev/null +++ b/tests/image_util_tests.cpp @@ -0,0 +1,46 @@ +#include "imageutil.hpp" + +#include <cstdio> +#include <string> + +#include <opencv2/imgcodecs.hpp> +#include <opencv2/highgui.hpp> +#include <opencv2/imgproc.hpp> + +int main(int argc, char** argv) +{ + if (argc < 2) + { + printf("usage: %s <image file>\n", argv[0]); + return 1; + } + cv::Mat i = cv::imread(argv[1], cv::IMREAD_UNCHANGED); + if (i.data == NULL) + { + printf("invalid image.\n"); + return 1; + } + cv::Mat fi, bw; + double sc = 1; + switch (i.depth()) + { + case CV_8U: sc = 1. / 255; break; + case CV_16U: sc = 1. / 65535; break; + } + i.convertTo(fi, CV_32F, sc); + if (fi.channels() == 4) + fi = image_util::blend_white(fi); + cv::cvtColor(fi, bw, cv::COLOR_RGB2GRAY); + cv::imshow(std::string("test"), bw); + cv::Range xr, yr; + double contrast_threshold = 0.05; + double max_crop_ratio = 0.25; + xr = image_util::crop_axis(bw, 0, contrast_threshold, max_crop_ratio); + yr = image_util::crop_axis(bw, 1, contrast_threshold, max_crop_ratio); + cv::Mat cfi = image_util::crop(bw, contrast_threshold, max_crop_ratio); + cv::imshow(std::string("cropped"), cfi); + printf("xxx [%d, %d) [%d, %d)\n", yr.start, yr.end, xr.start, xr.end); + puts("press q to quit."); + while (cv::waitKey(0) != 'q'); + return 0; +} |