third_party/opencv
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Update documentation ( tutorials )

Browse Source
This commit is contained in:
Suleyman TURKMEN
2016-07-18 16:32:05 +03:00
parent 55d0945149
commit bb6f65c199
34 changed files with 369 additions and 1333 deletions
Download Patch File Download Diff File Expand all files Collapse all files
samples/cpp/tutorial_code/ImgProc/AddingImages.cpp
-52
View File
@@ -1,52 +0,0 @@
/**
* @file AddingImages.cpp
* @brief Simple linear blender ( dst = alpha*src1 + beta*src2 )
* @author OpenCV team
*/
#include "opencv2/imgcodecs.hpp"
#include "opencv2/highgui.hpp"
#include <iostream>
using namespace cv;
/**
* @function main
* @brief Main function
*/
int main( void )
{
double alpha = 0.5; double beta; double input;
Mat src1, src2, dst;
/// Ask the user enter alpha
std::cout<<" Simple Linear Blender "<<std::endl;
std::cout<<"-----------------------"<<std::endl;
std::cout<<"* Enter alpha [0-1]: ";
std::cin>>input;
// We use the alpha provided by the user iff it is between 0 and 1
if( alpha >= 0 && alpha <= 1 )
{ alpha = input; }
/// Read image ( same size, same type )
src1 = imread("../data/LinuxLogo.jpg");
src2 = imread("../data/WindowsLogo.jpg");
if( src1.empty() ) { std::cout<< "Error loading src1"<<std::endl; return -1; }
if( src2.empty() ) { std::cout<< "Error loading src2"<<std::endl; return -1; }
/// Create Windows
namedWindow("Linear Blend", 1);
beta = ( 1.0 - alpha );
addWeighted( src1, alpha, src2, beta, 0.0, dst);
imshow( "Linear Blend", dst );
waitKey(0);
return 0;
}
samples/cpp/tutorial_code/ImgProc/Morphology_1.cpp
+8
View File
@@ -66,6 +66,7 @@ int main( int, char** argv )
return 0;
}
//![erosion]
/**
* @function Erosion
*/
@@ -76,14 +77,19 @@ void Erosion( int, void* )
else if( erosion_elem == 1 ){ erosion_type = MORPH_CROSS; }
else if( erosion_elem == 2) { erosion_type = MORPH_ELLIPSE; }
//![kernel]
Mat element = getStructuringElement( erosion_type,
Size( 2*erosion_size + 1, 2*erosion_size+1 ),
Point( erosion_size, erosion_size ) );
//![kernel]
/// Apply the erosion operation
erode( src, erosion_dst, element );
imshow( "Erosion Demo", erosion_dst );
}
//![erosion]
//![dilation]
/**
* @function Dilation
*/
@@ -97,7 +103,9 @@ void Dilation( int, void* )
Mat element = getStructuringElement( dilation_type,
Size( 2*dilation_size + 1, 2*dilation_size+1 ),
Point( dilation_size, dilation_size ) );
/// Apply the dilation operation
dilate( src, dilation_dst, element );
imshow( "Dilation Demo", dilation_dst );
}
//![dilation]
samples/cpp/tutorial_code/ImgProc/Morphology_2.cpp
+16 -4
View File
@@ -31,27 +31,35 @@ void Morphology_Operations( int, void* );
*/
int main( int, char** argv )
{
/// Load an image
src = imread( argv[1], IMREAD_COLOR );
//![load]
src = imread( argv[1], IMREAD_COLOR ); // Load an image
if( src.empty() )
{ return -1; }
//![load]
/// Create window
namedWindow( window_name, WINDOW_AUTOSIZE );
//![window]
namedWindow( window_name, WINDOW_AUTOSIZE ); // Create window
//![window]
//![create_trackbar1]
/// Create Trackbar to select Morphology operation
createTrackbar("Operator:\n 0: Opening - 1: Closing \n 2: Gradient - 3: Top Hat \n 4: Black Hat", window_name, &morph_operator, max_operator, Morphology_Operations );
//![create_trackbar1]
//![create_trackbar2]
/// Create Trackbar to select kernel type
createTrackbar( "Element:\n 0: Rect - 1: Cross - 2: Ellipse", window_name,
&morph_elem, max_elem,
Morphology_Operations );
//![create_trackbar2]
//![create_trackbar3]
/// Create Trackbar to choose kernel size
createTrackbar( "Kernel size:\n 2n +1", window_name,
&morph_size, max_kernel_size,
Morphology_Operations );
//![create_trackbar3]
/// Default start
Morphology_Operations( 0, 0 );
@@ -60,13 +68,16 @@ int main( int, char** argv )
return 0;
}
//![morphology_operations]
/**
* @function Morphology_Operations
*/
void Morphology_Operations( int, void* )
{
// Since MORPH_X : 2,3,4,5 and 6
//![operation]
int operation = morph_operator + 2;
//![operation]
Mat element = getStructuringElement( morph_elem, Size( 2*morph_size + 1, 2*morph_size+1 ), Point( morph_size, morph_size ) );
@@ -74,3 +85,4 @@ void Morphology_Operations( int, void* )
morphologyEx( src, dst, operation, element );
imshow( window_name, dst );
}
//![morphology_operations]
samples/cpp/tutorial_code/ImgProc/Pyramids.cpp
+19 -8
View File
@@ -28,39 +28,50 @@ int main( void )
printf( " * [d] -> Zoom out \n" );
printf( " * [ESC] -> Close program \n \n" );
/// Test image - Make sure it s divisible by 2^{n}
src = imread( "../data/chicky_512.png" );
//![load]
src = imread( "../data/chicky_512.png" ); // Loads the test image
if( src.empty() )
{ printf(" No data! -- Exiting the program \n");
return -1; }
//![load]
tmp = src;
dst = tmp;
/// Create window
namedWindow( window_name, WINDOW_AUTOSIZE );
//![create_window]
imshow( window_name, dst );
//![create_window]
/// Loop
//![infinite_loop]
for(;;)
{
int c;
c = waitKey(10);
c = waitKey(0);
if( (char)c == 27 )
{ break; }
if( (char)c == 'u' )
{ pyrUp( tmp, dst, Size( tmp.cols*2, tmp.rows*2 ) );
{
//![pyrup]
pyrUp( tmp, dst, Size( tmp.cols*2, tmp.rows*2 ) );
//![pyrup]
printf( "** Zoom In: Image x 2 \n" );
}
else if( (char)c == 'd' )
{ pyrDown( tmp, dst, Size( tmp.cols/2, tmp.rows/2 ) );
{
//![pyrdown]
pyrDown( tmp, dst, Size( tmp.cols/2, tmp.rows/2 ) );
//![pyrdown]
printf( "** Zoom Out: Image / 2 \n" );
}
imshow( window_name, dst );
//![update_tmp]
tmp = dst;
//![update_tmp]
}
//![infinite_loop]
return 0;
}
samples/cpp/tutorial_code/ImgProc/Smoothing.cpp
+8 -3
View File
@@ -43,33 +43,38 @@ int main( void )
/// Applying Homogeneous blur
if( display_caption( "Homogeneous Blur" ) != 0 ) { return 0; }
//![blur]
for ( int i = 1; i < MAX_KERNEL_LENGTH; i = i + 2 )
{ blur( src, dst, Size( i, i ), Point(-1,-1) );
if( display_dst( DELAY_BLUR ) != 0 ) { return 0; } }
//![blur]
/// Applying Gaussian blur
if( display_caption( "Gaussian Blur" ) != 0 ) { return 0; }
//![gaussianblur]
for ( int i = 1; i < MAX_KERNEL_LENGTH; i = i + 2 )
{ GaussianBlur( src, dst, Size( i, i ), 0, 0 );
if( display_dst( DELAY_BLUR ) != 0 ) { return 0; } }
//![gaussianblur]
/// Applying Median blur
if( display_caption( "Median Blur" ) != 0 ) { return 0; }
//![medianblur]
for ( int i = 1; i < MAX_KERNEL_LENGTH; i = i + 2 )
{ medianBlur ( src, dst, i );
if( display_dst( DELAY_BLUR ) != 0 ) { return 0; } }
//![medianblur]
/// Applying Bilateral Filter
if( display_caption( "Bilateral Blur" ) != 0 ) { return 0; }
//![bilateralfilter]
for ( int i = 1; i < MAX_KERNEL_LENGTH; i = i + 2 )
{ bilateralFilter ( src, dst, i, i*2, i/2 );
if( display_dst( DELAY_BLUR ) != 0 ) { return 0; } }
//![bilateralfilter]
/// Wait until user press a key
display_caption( "End: Press a key!" );
samples/cpp/tutorial_code/ImgProc/Threshold.cpp
+14 -12
View File
@@ -32,29 +32,30 @@ void Threshold_Demo( int, void* );
*/
int main( int, char** argv )
{
/// Load an image
src = imread( argv[1], IMREAD_COLOR );
//! [load]
src = imread( argv[1], IMREAD_COLOR ); // Load an image
if( src.empty() )
{ return -1; }
/// Convert the image to Gray
cvtColor( src, src_gray, COLOR_BGR2GRAY );
cvtColor( src, src_gray, COLOR_BGR2GRAY ); // Convert the image to Gray
//! [load]
/// Create a window to display results
namedWindow( window_name, WINDOW_AUTOSIZE );
//! [window]
namedWindow( window_name, WINDOW_AUTOSIZE ); // Create a window to display results
//! [window]
/// Create Trackbar to choose type of Threshold
//! [trackbar]
createTrackbar( trackbar_type,
window_name, &threshold_type,
max_type, Threshold_Demo );
max_type, Threshold_Demo ); // Create Trackbar to choose type of Threshold
createTrackbar( trackbar_value,
window_name, &threshold_value,
max_value, Threshold_Demo );
max_value, Threshold_Demo ); // Create Trackbar to choose Threshold value
//! [trackbar]
/// Call the function to initialize
Threshold_Demo( 0, 0 );
Threshold_Demo( 0, 0 ); // Call the function to initialize
/// Wait until user finishes program
for(;;)
@@ -67,7 +68,7 @@ int main( int, char** argv )
}
//![Threshold_Demo]
/**
* @function Threshold_Demo
*/
@@ -84,3 +85,4 @@ void Threshold_Demo( int, void* )
imshow( window_name, dst );
}
//![Threshold_Demo]