stb_image_terminal.cpp

// Show image using dots and spaces in terminal

#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
#include <iostream>

int main(int argc, char *argv[]) {
	if (argc != 2) { std::cerr << "Only one argument should be image file" << std::endl; return 1; };
	int x, y, n;
	unsigned char *data = stbi_load(argv[1], &x, &y, &n, 1);
	if (!data) { std::cerr << "Error loading file" << std::endl; return 1; };
	std::cout << "x, y, bpp: " << x << ", " << y << ", " << n << std::endl;
	for (int yi = 0; yi < y; yi+=2) { // In my terminal this makes resolution close to correct
		for (int xi = 0; xi < x; ++xi) {
			std::cout << ((data[yi*x+xi] > 128) ? (" ") : ("."));
		}
		std::cout << std::endl;
	}
	stbi_image_free(data);
	return 0;
}