#include <cstdio>
#include <cstdlib>
static void susan_demo(bool console) {
if (console)
img_color =
loadImage(ASSETS_DIR
"/examples/images/square.png",
true);
else
img_color =
loadImage(ASSETS_DIR
"/examples/images/man.jpg",
true);
img_color /= 255.f;
printf("No features found, exiting\n");
return;
}
const int draw_len = 3;
int x = h_x[f];
int y = h_y[f];
img_color(x,
seq(y - draw_len, y + draw_len), 0) = 0.f;
img_color(x,
seq(y - draw_len, y + draw_len), 1) = 1.f;
img_color(x,
seq(y - draw_len, y + draw_len), 2) = 0.f;
img_color(
seq(x - draw_len, x + draw_len), y, 0) = 0.f;
img_color(
seq(x - draw_len, x + draw_len), y, 1) = 1.f;
img_color(
seq(x - draw_len, x + draw_len), y, 2) = 0.f;
}
if (!console) {
} else {
}
}
int main(int argc, char** argv) {
int device = argc > 1 ? atoi(argv[1]) : 0;
bool console = argc > 2 ? argv[2][0] == '-' : false;
try {
printf("** ArrayFire SUSAN Feature Detector Demo **\n\n");
susan_demo(console);
fprintf(stderr,
"%s\n", ae.
what());
throw;
}
return 0;
}
Window object to render af::arrays.
A multi dimensional data container.
T * host() const
Copy array data to host and return host pointer.
An ArrayFire exception class.
virtual const char * what() const
Returns an error message for the exception in a string format.
Represents a feature returned by a feature detector.
array getScore() const
Returns an array with the score of the features.
array getY() const
Returns an af::array which represents the y locations of a feature.
size_t getNumFeatures() const
Returns the number of features represented by this object.
array getX() const
Returns an af::array which represents the x locations of a feature.
seq is used to create sequences for indexing af::array
features susan(const array &in, const unsigned radius=3, const float diff_thr=32.0f, const float geom_thr=10.0f, const float feature_ratio=0.05f, const unsigned edge=3)
C++ Interface for SUSAN corner detector.
void freeHost(const void *ptr)
Free memory allocated internally by ArrayFire.
void setDevice(const int device)
Sets the current device.
void image(const array &in, const char *title=NULL)
Renders the input array as an image to the window.
bool close()
Check if window is marked for close.
array colorSpace(const array &image, const CSpace to, const CSpace from)
C++ Interface wrapper for colorspace conversion.
array loadImage(const char *filename, const bool is_color=false)
C++ Interface for loading an image.