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c++boostboost-gil

Reading png images with gil

Is it possible with boost::gil to read the RGB image information so that I can read the file into the correct rgbx_image_t?

With the following I have to know the type beforehand and that is not so neat.

boost::gil::rgb8_image_t im;
gil::png_read_image(m_filename, im);
Solution

  • You can make a list of types you want to try and use an any_image to hold a type-erased result:

    typedef mpl::vector<rgb8_image_t, rgb16_image_t> my_img_types;
any_image<my_img_types> runtime_image;
png_read_image("input.png", runtime_image);

    Source