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I want to compare two string, and want to see differeince in int form. For example,



string first_string="0002AE1";
string second_string="0002AE2";


How can i calculate difference between...

I am trying to use PCA, but it gives memory access violation error. Here is my sample code.


int main(...)
{
.................
vector<float>input_array;

for(i=0;i<number_of_lines;i++)
...

Revised code would be
int main(.....)
{
vector<double>pdf_vector;
//read data from file and put it in pdf_vector.
vector<double>all_vector;
Mat dft_input_vector(pdf_vector);
Mat...

I am trying to use following code, but it gives error. Error message is like : OpenCV Error: Assertion failed (dims <= 2 && data && (unsigned)i0 < (unsigned)si ze.p[0] &&...

I am using OpenCV library.
"images – Source arrays. They all should have the same depth, CV_8U or CV_32F"

so vector<double> is not a valid input. vector<float> should do.

Here is the solution:
Function prototype would be
vector<double>three_dimensional_shape_retreival_Hough_Transform:: histogram_creation(vector<float> input_vector) instead of...

I have following code to create histogram, but it gave wrong output. In the program input_vector read 100 double numbers. I want to create a histogram with bin size=5. Output is [0;0;0;0;0]. Can...

Thnx. I solved the problem.
Source: perfectly fine link:
http://blog.hcilab.org/bastian/2012/06/installing-opencv-2-4-windows-7-visual-studio/

Thnx. I solved the problem.
Source: perfectly fine link:
http://blog.hcilab.org/bastian/2012/06/installing-opencv-2-4-windows-7-visual-studio/

I am trying to run an OpenCV program from command line, but it gave error like "The program can`t start because opencv_220d.dll is missing from your computer." Try reinstalling the program to fix...

I tried in this way , but output is not acceptable.


int main(.......)
{
......................
double histogram_sample[1][6]={1.0,2.0,3.0,4.0,1.0,2.0};

Mat...

I have a text file which consist of several values. These values represent distance from origin to any point in the triangle. How can I create histogram from these values? Is there any functions in...

I solved the problem. Here is the solution:


Hough_Transform_3D_Accumulator temp;

temp.i = i;

temp.j = j;

temp.k = k;

Here I have given my sample code, but it gave error. How can insert value in structure vector?


struct Hough_Transform_3D_Accumulator
{
long int i;
long int j;
long int k;
long int...

Anyway, I have solved the problem. I include "opencv_imgproc220d.lib" in additional library dependencies in VC++2010.

I am tying to compare two histograms, but it gives error. Here I have given my code, histogram file and error message.
Histogram file 3*5 matrix(output_test.txt):

1 2 3 4 5
5 2 1 4 2
2 1 2 4 2...

Ya, I should include some code for checking.

Yes. It would be reader.read_off(mesh, input_file_name.c_str()) instead of argv[2]=input_file_name.c_str().

Finally, I did it. It will be writer.write_off(mesh, output_file_name.c_str()); instead of argv[3]= output_file_name.c_str();

Actually this is my code: I use command line argument, argv[1] is my one of the input file name. I want to change argv[2] and argv[3] dynamically inside the for loop.

int main(int argc, char...

Hi,
I want to do following , but it gives error C2440: '=' : cannot convert from 'const char *' to 'char *.

............
string str("VRML");
char *sss[];
sss[0]=str.c_str();...