irplib_hist-test.c
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00020 #ifdef HAVE_CONFIG_H
00021 #include <config.h>
00022 #endif
00023
00024
00025
00026
00027
00028
00029 #include <irplib_hist.h>
00030
00031 #include <math.h>
00032
00033
00034
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00036
00037
00038
00039
00040
00041
00042
00043 #define NBINS 100
00044
00045
00046
00047
00048
00049 static void irplib_hist_tests(void);
00050
00051
00052
00053
00054
00055
00056
00057 int main(void)
00058 {
00059
00060 cpl_test_init(PACKAGE_BUGREPORT, CPL_MSG_WARNING);
00061
00062 irplib_hist_tests();
00063
00064 return cpl_test_end(0);
00065 }
00066
00067 static void irplib_hist_tests(void)
00068 {
00069 irplib_hist * hist;
00070 cpl_image * image;
00071 cpl_error_code error;
00072 int i, j;
00073 float * data;
00074
00075 unsigned long max_where;
00076
00077
00078 hist = irplib_hist_new();
00079 cpl_test_nonnull(hist);
00080 cpl_test_error(CPL_ERROR_NONE);
00081 irplib_hist_delete(hist);
00082
00083
00084 image = cpl_image_new(100, 100, CPL_TYPE_FLOAT);
00085 cpl_image_add_scalar(image, 202);
00086
00087 hist = irplib_hist_new();
00088
00089 error = irplib_hist_init(hist, NBINS, 0, 500);
00090 cpl_test_zero(error);
00091 error = irplib_hist_fill(hist, image);
00092 cpl_test_zero(error);
00093
00094 for(i = 0; i < 40; i++) {
00095 cpl_test_zero(irplib_hist_get_value(hist, i));
00096 }
00097
00098
00099
00100
00101
00102
00103
00104
00105 cpl_test_eq(irplib_hist_get_value(hist, 40), 10000);
00106 for(i = 42; i < NBINS; i++) {
00107 cpl_test_zero(irplib_hist_get_value(hist, i));
00108 }
00109
00110 irplib_hist_delete(hist);
00111 cpl_image_delete(image);
00112
00113
00114 image = cpl_image_new(100, 100, CPL_TYPE_FLOAT);
00115 cpl_image_fill_noise_uniform(image, 0, 200);
00116
00117 hist = irplib_hist_new();
00118 error = irplib_hist_fill(hist,image);
00119 cpl_test_zero(error);
00120
00121 irplib_hist_delete(hist);
00122 cpl_image_delete(image);
00123
00124
00125 image = cpl_image_new(100, 100, CPL_TYPE_FLOAT);
00126 data = cpl_image_get_data_float(image);
00127 for (i = 0; i < 100; i++) {
00128 for (j = 0; j < 100; j++) {
00129 *(data + 100*i + j) = i +j;
00130 }
00131 }
00132
00133 hist = irplib_hist_new();
00134 error = irplib_hist_fill(hist, image);
00135
00136 irplib_hist_get_max(hist, &max_where);
00137
00138
00139
00140
00141
00142
00143
00144
00145
00146 cpl_test_eq(max_where, irplib_hist_get_nbins(hist)/2);
00147
00148 irplib_hist_delete(hist);
00149 cpl_image_delete(image);
00150 }