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udaya1223 / FindModes.cpp
Created September 21, 2017 10:15
Find modes of an array
View FindModes.cpp
#include <iostream>
#include <vector>
using namespace std;
void printArray(int *array, int size) {
for (int i = 0; i < size; i++)
udaya1223 / makeChessboard.cpp
Last active December 28, 2016 07:22
Make a chessboard pattern using OpenCV for camera calibration
View makeChessboard.cpp
// Make a chessboard pattern given the num. of rows & cols, square size in pixels, and square colors
void crvlMakeChessboardPattern(Mat &outChessboard, int inRows, int inCols, int inSquareSize = 100, Scalar color1 = CV_RGB(0, 0, 0), Scalar color2 = CV_RGB(255, 255, 255)){
CV_Assert(inRows > 1 && inCols > 1);
CV_Assert(inSquareSize > 0);
int chessboardImgCols = inCols*inSquareSize;
int chessboardImgRows = inRows*inSquareSize;
outChessboard = Mat(chessboardImgRows, chessboardImgCols, CV_8UC3, Scalar(0, 0, 0));
for (size_t rows = 0, rowNum = 0; rows < chessboardImgRows; rows += inSquareSize, rowNum++)
udaya1223 / cmake.log
Created December 7, 2016 12:23
CMake Log - Building OpenCV3.1 with contrib package
View cmake.log
found IPP (ICV version): 9.0.1 [9.0.1]
at: J:/Research Related Software/OpenCV/NEW_OpenCV_3.1.0/OpenCV_3.1.0_Source/3rdparty/ippicv/unpack/ippicv_win
Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "2.7")
Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "2.6")
Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "3.4")
Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "3.2")
VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
Check contents of vgg_generated_48.i ...
Check contents of vgg_generated_64.i ...
udaya1223 / printOpenCVMat.cpp
Last active December 6, 2016 08:22
Print OpenCV single channel Mat
View printOpenCVMat.cpp
void _PrintMatrix(char *pMessage, cv::Mat &mat)
printf("%s\n", pMessage);
for (int r = 0; r < mat.rows; r++) {
for (int c = 0; c < mat.cols; c++) {
switch (mat.depth())
case CV_8U:
udaya1223 / fileName.cpp
Last active October 5, 2016 06:29
Formatting a file name using user input.
View fileName.cpp
#include <sstream>
#define IMAGE_FILE_PATH "../../data/WideAngle"
#define LEFT_IMAGE_FILE_PATH "../../data/WideAngle"
#define LEFT_PREFIX "left_"
#define RIGHT_PREFIX "right_"
#define IMG_NUM_PAD (4)
#define IMG_EXTENSION "bmp"
udaya1223 / rgbtohsv.cpp
Created March 23, 2016 14:35
Convert RGB image to HSV using OpenCV
View rgbtohsv.cpp
Mat srcImg = imread("image.jpg", CV_LOAD_IMAGE_COLOR);
Mat srcHSVImage, hue, sat, val;
vector<Mat> hsv;
cvtColor(srcImg, srcHSVImage, CV_BGR2HSV_FULL);
hsv[0].copyTo (hue); //Hue channel
hsv[1].copyTo(sat); //Saturation channel
hsv[2].copyTo(val); //Value channel
udaya1223 / readingint.cpp
Created February 25, 2016 11:30
Reading a line of integers from command line
View readingint.cpp
#include <iostream>
#include <fstream>
#include <sstream>
using namespace std;
int main(){
vector<int> vector_of_int;
string str;
View openCVMatTypeCheck.cpp
string openCVType2str(int type) {
string r;
uchar depth = type & CV_MAT_DEPTH_MASK;
uchar chans = 1 + (type >> CV_CN_SHIFT);
switch ( depth ) {
case CV_8U: r = "8U"; break;
case CV_8S: r = "8S"; break;
case CV_16U: r = "16U"; break;
udaya1223 / opencvmat.cpp
Last active September 7, 2015 04:51
How to check OpenCV Mat data type ?
View opencvmat.cpp
Mat test = Mat::zeros(nHeight, nWidth, CV_32FC4);
if(test.type() == CV_32FC4){
printf("Correct data type\n");
udaya1223 / pipedemo.c
Created May 2, 2014 04:45
How to use PIPE & FORK system calls to run three commands together.
View pipedemo.c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#define oops(m,x) { perror(m); exit(x); }
main(int ac, char **av)
int thepipe[2], /* first pipe for the first and second command */
thesecondpipe[2], /* second pipe for the second and third commands*/