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Added some stuff to test the integral_image class.

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extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%403058
This commit is contained in:
Davis King 2009-05-25 00:46:50 +00:00
parent a422e2d6ce
commit 27a02fd1a1
1 changed files with 47 additions and 0 deletions
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47
dlib/test/image.cpp
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@ -9,6 +9,7 @@
#include <dlib/image_transforms.h>
#include <dlib/image_io.h>
#include <dlib/matrix.h>
#include <dlib/rand.h>
#include "tester.h"
@ -445,6 +446,51 @@ namespace
}
void test_integral_image (
)
{
dlib::rand::float_1a rnd;
array2d<unsigned char>::kernel_1a_c img;
integral_image int_img;
int_img.load(img);
DLIB_TEST(int_img.nr() == 0);
DLIB_TEST(int_img.nc() == 0);
// make 5 random images
for (int i = 0; i < 5; ++i)
{
print_spinner();
img.set_size(rnd.get_random_16bit_number()%200+1, rnd.get_random_16bit_number()%200+1);
for (long r = 0; r < img.nr(); ++r)
{
for (long c = 0; c < img.nc(); ++c)
{
img[r][c] = rnd.get_random_8bit_number();
}
}
int_img.load(img);
DLIB_TEST(int_img.nr() == img.nr());
DLIB_TEST(int_img.nc() == img.nc());
// make 200 random rectangles
for (int j = 0; j < 200; ++j)
{
point p1(rnd.get_random_32bit_number()%img.nc(), rnd.get_random_32bit_number()%img.nr());
point p2(rnd.get_random_32bit_number()%img.nc(), rnd.get_random_32bit_number()%img.nr());
rectangle rect(p1,p2);
DLIB_TEST(int_img.get_sum_of_area(rect) == sum(subm(matrix_cast<long>(array_to_matrix(img)), rect)));
rect = rectangle(p1,p1);
DLIB_TEST(int_img.get_sum_of_area(rect) == sum(subm(matrix_cast<long>(array_to_matrix(img)), rect)));
}
}
}
class image_tester : public tester
@ -460,6 +506,7 @@ namespace
)
{
image_test();
test_integral_image();
}
} a;