graphics/histogram.cpp
/*******************************************************
* Copyright (c) 2014, ArrayFire
* All rights reserved.
*
* This file is distributed under 3-clause BSD license.
* The complete license agreement can be obtained at:
* https://arrayfire.com/licenses/BSD-3-Clause
********************************************************/
#include <arrayfire.h>
#include <math.h>
#include <cstdio>
using namespace af;
int main(int, char**) {
try {
// Initialize the kernel array just once
af::Window myWindow(512, 512, "Histogram example using ArrayFire");
af::Window imgWnd(480, 640, "Input Image");
array img = loadImage(ASSETS_DIR "/examples/images/arrow.jpg", false);
array hist_out = histogram(img, 256, 0, 255);
myWindow.setAxesTitles("Bins", "Frequency");
myWindow.setPos(480, 0);
while (!myWindow.close() && !imgWnd.close()) {
myWindow.hist(hist_out, 0, 255);
imgWnd.image(img.as(u8));
}
}
catch (af::exception& e) {
fprintf(stderr, "%s\n", e.what());
throw;
}
return 0;
}