boost::gil::read_image_info

Returns the image format backend. Backend is format specific.

Synopses

Declared in <boost/gil/io/read_image_info.hpp>

Returns the image format backend. Backend is format specific.

template<
    typename Device,
    typename FormatTag>
get_reader_backend<Device, FormatTag>::type
read_image_info(
    Device& file,
    FormatTag const&)
requires mp11::mp_and
        <
            detail::is_adaptable_input_device<FormatTag, Device>,
            is_format_tag<FormatTag>
        >::value;

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Returns the image format backend. Backend is format specific.

template<
    typename Device,
    typename FormatTag>
get_reader_backend<Device, FormatTag>::type
read_image_info(
    Device& file,
    image_read_settings<FormatTag> const& settings)
requires mp11::mp_and
        <
            detail::is_adaptable_input_device<FormatTag, Device>,
            is_format_tag<FormatTag>
        >::value;

» more...

Returns the image format backend. Backend is format specific.

template<
    typename String,
    typename FormatTag>
get_reader_backend<String, FormatTag>::type
read_image_info(
    String const& file_name,
    FormatTag const&)
requires mp11::mp_and
        <
            is_format_tag<FormatTag>,
            detail::is_supported_path_spec<String>
        >::value;

» more...

Returns the image format backend. Backend is format specific.

template<
    typename String,
    typename FormatTag>
get_reader_backend<String, FormatTag>::type
read_image_info(
    String const& file_name,
    image_read_settings<FormatTag> const& settings)
requires mp11::mp_and
        <
            is_format_tag<FormatTag>,
            detail::is_supported_path_spec<String>
        >::value;

» more...

Return Value

image_read_info object dependent on the image format.

Parameters

Name

Description

file

It's a device. Must satisfy is_adaptable_input_device metafunction.

settings

Specifies read settings depending on the image format.

file_name

File name. Must satisfy is_supported_path_spec metafunction.

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