png++

C++ wrapper library for libpng enabling easy PNG image manipulation

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C++ wrapper for libpng library

png++

Include png++ in C++ project to read PNG files

$ #include <png++/png.hpp>
png::image<png::rgb_pixel> image("input.png");

Write PNG image with pixel data

$ png::image<png::rgba_pixel> img(width, height);
img.write("output.png");

Access and modify individual pixels in PNG

$ png::rgb_pixel pixel = image[y][x];
image[y][x] = png::rgb_pixel(255, 0, 0);