boost::gil::read_image

Reads an image without conversion. Image memory is allocated.

Synopses

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

Reads an image without conversion. Image memory is allocated.

template<
    typename Reader,
    typename Image>
void
read_image(
    Reader reader,
    Image& img)
requires mp11::mp_and
        <
            detail::is_reader<Reader>,
            is_format_tag<typename Reader::format_tag_t>,
            is_read_supported
            <
                typename get_pixel_type<typename Image::view_t>::type,
                typename Reader::format_tag_t
            >
        >::value;

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template<
    typename Reader,
    typename... Images>
void
read_image(
    Reader& reader,
    any_image<Images...>& images)
requires mp11::mp_and
        <
            detail::is_dynamic_image_reader<Reader>,
            is_format_tag<typename Reader::format_tag_t>
        >::value;

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Reads an image without conversion. Image memory is allocated.

template<
    typename Device,
    typename Image,
    typename FormatTag>
void
read_image(
    Device& file,
    Image& img,
    FormatTag const& tag)
requires mp11::mp_and
        <
            detail::is_read_device<FormatTag, Device>,
            is_format_tag<FormatTag>,
            is_read_supported
            <
                typename get_pixel_type<typename Image::view_t>::type,
                FormatTag
            >
        >::value;

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Reads an image without conversion. Image memory is allocated.

template<
    typename Device,
    typename Image,
    typename FormatTag>
void
read_image(
    Device& file,
    Image& img,
    image_read_settings<FormatTag> const& settings)
requires mp11::mp_and
        <
            detail::is_read_device<FormatTag, Device>,
            is_format_tag<FormatTag>,
            is_read_supported
            <
                typename get_pixel_type<typename Image::view_t>::type,
                FormatTag
            >
        >::value;

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Reads an image without conversion. Image memory is allocated.

template<
    typename Device,
    typename... Images,
    typename FormatTag>
void
read_image(
    Device& file,
    any_image<Images...>& images,
    FormatTag const& tag)
requires mp11::mp_and
        <
            detail::is_read_device<FormatTag, Device>,
            is_format_tag<FormatTag>
        >::value;

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Reads an image without conversion. Image memory is allocated.

template<
    typename Device,
    typename... Images,
    typename FormatTag>
void
read_image(
    Device& file,
    any_image<Images...>& images,
    image_read_settings<FormatTag> const& settings)
requires mp11::mp_and
        <
            detail::is_read_device<FormatTag, Device>,
            is_format_tag<FormatTag>
        >::value;

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Reads an image without conversion. Image memory is allocated.

template<
    typename String,
    typename Image,
    typename FormatTag>
void
read_image(
    String const& file_name,
    Image& img,
    FormatTag const& tag)
requires mp11::mp_and<detail::is_supported_path_spec<String>,
        is_format_tag<FormatTag>,
        is_read_supported
        <
            typename get_pixel_type<typename Image::view_t>::type,
            FormatTag
        >
    >::value;

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Reads an image without conversion. Image memory is allocated.

template<
    typename String,
    typename Image,
    typename FormatTag>
void
read_image(
    String const& file_name,
    Image& img,
    image_read_settings<FormatTag> const& settings)
requires mp11::mp_and
        <
            detail::is_supported_path_spec<String>,
            is_format_tag<FormatTag>,
            is_read_supported
            <
                typename get_pixel_type<typename Image::view_t>::type,
                FormatTag
            >
        >::value;

» more...

Reads an image without conversion. Image memory is allocated.

template<
    typename String,
    typename... Images,
    typename FormatTag>
void
read_image(
    String const& file_name,
    any_image<Images...>& images,
    FormatTag const& tag)
requires mp11::mp_and
        <
            detail::is_supported_path_spec<String>,
            is_format_tag<FormatTag>
        >::value;

» more...

Reads an image without conversion. Image memory is allocated.

template<
    typename String,
    typename... Images,
    typename FormatTag>
void
read_image(
    String const& file_name,
    any_image<Images...>& images,
    image_read_settings<FormatTag> const& settings)
requires mp11::mp_and
        <
            detail::is_supported_path_spec<String>,
            is_format_tag<FormatTag>
        >::value;

» more...

Parameters

Name

Description

reader

An image reader.

img

The image in which the data is read into. Must satisfy is_read_supported metafunction.

file

It's a device. Must satisfy is_input_device metafunction.

tag

Defines the image format. Must satisfy is_format_tag metafunction.

settings

Specifies read settings depending on the image format.

images

Dynamic image (mp11::mp_list). See boost::gil::dynamic_image extension.

file_name

File name. Must satisfy is_supported_path_spec metafunction.

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