add SharpenImage
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@ -8,3 +8,5 @@ SVMTest
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SVMTest.png
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DisplayImage
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SharpenImage
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@ -7,3 +7,6 @@ target_link_libraries( SVMTest ${OpenCV_LIBS} )
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add_executable( DisplayImage DisplayImage.cpp )
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target_link_libraries( DisplayImage ${OpenCV_LIBS} )
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add_executable( SharpenImage SharpenImage.cpp )
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target_link_libraries( SharpenImage ${OpenCV_LIBS} )
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65
SharpenImage.cpp
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65
SharpenImage.cpp
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@ -0,0 +1,65 @@
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#include <stdio.h>
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#include <opencv2/opencv.hpp>
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using namespace cv;
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void
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Sharpen (const Mat & myImage, Mat & Result)
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{
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CV_Assert (myImage.depth () == CV_8U); // accept only uchar images
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Result.create (myImage.size (), myImage.type ());
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const int nChannels = myImage.channels ();
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for (int j = 1; j < myImage.rows - 1; ++j)
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{
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const uchar *previous = myImage.ptr < uchar > (j - 1);
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const uchar *current = myImage.ptr < uchar > (j);
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const uchar *next = myImage.ptr < uchar > (j + 1);
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uchar *output = Result.ptr < uchar > (j);
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for (int i = nChannels; i < nChannels * (myImage.cols - 1); ++i)
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{
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*output++ = saturate_cast < uchar > (5 * current[i]
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- current[i - nChannels] -
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current[i + nChannels] -
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previous[i] - next[i]);
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}
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}
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Result.row (0).setTo (Scalar (0));
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Result.row (Result.rows - 1).setTo (Scalar (0));
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Result.col (0).setTo (Scalar (0));
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Result.col (Result.cols - 1).setTo (Scalar (0));
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}
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int
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main (int argc, char **argv)
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{
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if (argc != 2)
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{
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printf ("Usage: SharpenImage image.jpg\n");
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return -1;
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}
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Mat image;
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image = imread (argv[1], 1);
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if (argc != 2 || !image.data)
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{
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printf ("No image data\n");
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return -1;
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}
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Mat result;
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Sharpen (image, result);
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namedWindow ("Sharpen Image", CV_WINDOW_AUTOSIZE);
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// imshow("Sharpen Image", image);
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imshow ("Sharpen Image", result);
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waitKey (0);
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return 0;
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}
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