private static void test02()
//****************************************************************************80
//
// Purpose:
//
// TEST02 tests PBMA_READ_HEADER, PBMA_READ_DATA.
//
// Licensing:
//
// This code is distributed under the GNU LGPL license.
//
// Modified:
//
// 05 June 2010
//
// Author:
//
// John Burkardt
//
{
int[] b = null;
const string file_in_name = "pbma_io_prb_02.ascii.pbm";
int k;
int xsize = 0;
int ysize = 0;
Console.WriteLine("");
Console.WriteLine("TEST02");
Console.WriteLine(" PBMA_READ reads the header and data of an ASCII PBM file.");
//
// Create a data file to read.
//
PBMA.pbma_write_test(file_in_name);
Console.WriteLine("");
Console.WriteLine(" PBMA_WRITE_TEST created some test data.");
//
// Now have PBMA_READ try to read it.
//
PBMA.pbma_read(file_in_name, ref xsize, ref ysize, ref b);
Console.WriteLine("");
Console.WriteLine(" PBMA_READ was able to read the file we created.");
Console.WriteLine("");
Console.WriteLine(" Sample data:");
Console.WriteLine("");
for (k = 0; k <= 29; k++)
{
int i = ((29 - k) * 0 + k * (xsize - 1)) / 29;
int j = ((29 - k) * 0 + k * (ysize - 1)) / 29;
Console.WriteLine(i.ToString().PadLeft(4) + " "
+ j.ToString().PadLeft(4) + " "
+ b[i * ysize + j].ToString().PadLeft(6) + "");
}
}
private static void test01()
//****************************************************************************80
//
// Purpose:
//
// TEST01 tests PBMA_EXAMPLE, PBMA_WRITE.
//
// Licensing:
//
// This code is distributed under the GNU LGPL license.
//
// Modified:
//
// 05 June 2010
//
// Author:
//
// John Burkardt
//
{
const string file_out_name = "pbma_io_prb_01.ascii.pbm";
const int xsize = 300;
const int ysize = 300;
Console.WriteLine("");
Console.WriteLine("TEST01:");
Console.WriteLine(" PBMA_EXAMPLE sets up ASCII PBM data.");
Console.WriteLine(" PBMA_WRITE writes an ASCII PBM file.");
Console.WriteLine("");
Console.WriteLine(" Writing the file \"" + file_out_name + "\".");
int[] b = new int[xsize * ysize];
PBMA.pbma_example(xsize, ysize, ref b);
Console.WriteLine("");
Console.WriteLine(" PBMA_EXAMPLE has set up the data.");
PBMA.pbma_write(file_out_name, xsize, ysize, b);
Console.WriteLine("");
Console.WriteLine(" PBMA_WRITE was successful.");
//
// Now have PBMA_READ_TEST look at the file we think we created.
//
PBMA.pbma_read_test(file_out_name);
Console.WriteLine("");
Console.WriteLine(" PBMA_READ_TEST was able to read the file.");
}
private static void Main()
//****************************************************************************80
//
// Purpose:
//
// MAIN is the main program for IMAGE_EDGE_TEST.
//
// Discussion:
//
// IMAGE_EDGE_TEST tests the IMAGE_EDGE library.
//
// Licensing:
//
// This code is distributed under the GNU LGPL license.
//
// Modified:
//
// 22 July 2011
//
// Author:
//
// John Burkardt
//
{
int g_max = 0;
int i;
const string input_filename = "coins.ascii.pgm";
string[] input_unit;
int m = 0;
int n = 0;
const string output_filename = "coin_edges.ascii.pbm";
Console.WriteLine("");
Console.WriteLine("IMAGE_EDGE_TEST");
Console.WriteLine(" Test the IMAGE_EDGE library.");
Console.WriteLine("");
Console.WriteLine(" Demonstrate the NEWS stencil for edge detection");
Console.WriteLine(" in images.");
Console.WriteLine("");
Console.WriteLine(" The input file is \"" + input_filename + "\".");
try
{
input_unit = File.ReadAllLines(input_filename);
}
catch
{
Console.WriteLine("");
Console.WriteLine("IMAGE_EDGE_TEST - Fatal error!");
Console.WriteLine(" Could not open the file \"" + input_filename + "\"");
return;
}
int inputIndex = 0;
PGMA.pgma_read_header(input_unit, ref inputIndex, ref m, ref n, ref g_max);
Console.WriteLine("");
Console.WriteLine(" Number of rows = " + m + "");
Console.WriteLine(" Number of columns = " + n + "");
Console.WriteLine(" Maximum pixel intensity = " + g_max + "");
int[] g = new int[m * n];
PGMA.pgma_read_data(input_unit, ref inputIndex, m, n, ref g);
int[] g_histo = typeMethods.i4mat_histogram(m, n, g, 255);
Console.WriteLine("");
Console.WriteLine(" Gray Count");
Console.WriteLine("");
for (i = 0; i <= 255; i++)
{
Console.WriteLine(" " + i.ToString().PadLeft(3)
+ " " + g_histo[i].ToString().PadLeft(8) + "");
}
int[] e = NEWS.news(m, n, g);
//
// Write the edge information as a portable BIT map (0/1).
//
PBMA.pbma_write(output_filename, m, n, e);
Console.WriteLine("");
Console.WriteLine(" Wrote edge information to \"" + output_filename + "\".");
//
// Terminate.
//
Console.WriteLine("");
Console.WriteLine("IMAGE_EDGE_TEST");
Console.WriteLine(" Normal end of execution.");
Console.WriteLine("");
}
