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Diffstat (limited to 'hl/src/H5IMpublic.h')
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1 files changed, 293 insertions, 0 deletions
diff --git a/hl/src/H5IMpublic.h b/hl/src/H5IMpublic.h index 2843942..2129509 100644 --- a/hl/src/H5IMpublic.h +++ b/hl/src/H5IMpublic.h @@ -18,33 +18,326 @@ extern "C" { #endif +/**\defgroup H5IM Images + * + * <em>Creating and manipulating HDF5 datasets intended to be + * interpreted as images (H5IM)</em> + * + * The specification for the Images API is presented in another + * document: \ref IMG + * This version of the API is primarily concerned with two dimensional raster + * data similar to HDF4 Raster Images. + * The HDF5 Images API uses the \ref H5LT HDF5 API. + * + * \note \Bold{Programming hints:} + * \note To use any of these functions or subroutines, + * you must first include the relevant include file (C) or + * module (Fortran) in your application. + * \note The following line includes the HDF5 Images package, H5IM, + * in C applications: + * \code #include "hdf5_hl.h" \endcode + * \note This line includes the H5IM module in Fortran applications: + * \code use h5im \endcode + * + * - \ref H5IMget_image_info + * \n Gets information about an image dataset (dimensions, + * interlace mode and number of associated palettes). + * - \ref H5IMget_npalettes + * \n Gets the number of palettes associated to an image. + * - \ref H5IMget_palette + * \n Gets the palette dataset. + * - \ref H5IMget_palette_info + * \n Gets information about a palette dataset (dimensions). + * - \ref H5IMis_image + * \n Inquires if a dataset is an image + * - \ref H5IMis_palette + * \n Inquires if a dataset is a palette. + * - \ref H5IMlink_palette + * \n Attaches a palette to an image. + * - \ref H5IMmake_image_8bit + * \n Creates and writes an image. + * - \ref H5IMmake_image_24bit + * \n Creates and writes a true color image. + * - \ref H5IMmake_palette + * \n Creates and writes a palette. + * - \ref H5IMread_image + * \n Reads image data from disk. + * - \ref H5IMunlink_palette + * \n Dettaches a palette from an image. + * . + * + */ + +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Creates and writes an image. + * + * \fg_loc_id + * \param[in] dset_name The name of the dataset to create + * \param[in] width The width of the image + * \param[in] height The height of the image + * \param[in] buffer Buffer with data to be written to the dataset + * + * \return \herr_t + * + * \details H5IMmake_image_8bit() creates and writes a dataset named + * \p dset_name attached to the file or group specified by the + * identifier \p loc_id. Attributes conforming to the HDF5 Image + * and Palette specification for an indexed image are attached to + * the dataset, thus identifying it as an image. The image data is + * of the type #H5T_NATIVE_UCHAR. An indexed image is an image in + * which each each pixel information storage is an index to a + * table palette. + * + */ H5_HLDLL herr_t H5IMmake_image_8bit(hid_t loc_id, const char *dset_name, hsize_t width, hsize_t height, const unsigned char *buffer); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Creates and writes a true color image. + * + * \fg_loc_id + * \param[in] dset_name The name of the dataset to create + * \param[in] width The width of the image + * \param[in] height The height of the image + * \param[in] interlace String defining the interlace mode + * \param[in] buffer Buffer with data to be written to the dataset + * + * \return \herr_t + * + * \details H5IMmake_image_24bit() creates and writes a dataset named + * \p dset_name attached to the file or group specified by the + * identifier \p loc_id. This function defines a true color image + * conforming to the HDF5 Image and Palette specification. + * The function assumes that the image data is of the type + * #H5T_NATIVE_UCHAR. + * + * A true color image is an image where the pixel storage contains + * several color planes. In a 24 bit RGB color model, these planes + * are red, green and blue. In a true color image the stream of bytes + * can be stored in several different ways, thus defining the + * interlace (or interleaving) mode. The 2 most used types of interlace mode + * are interlace by pixel and interlace by plane. In the 24 bit RGB color + * model example, interlace by plane means all the red components for the + * entire dataset are stored first, followed by all the green components, + * and then by all the blue components. Interlace by pixel in this example + * means that for each pixel the sequence red, green, blue is defined. + * In this function, the interlace mode is defined in the parameter + * \p interlace, a string that can have the values INTERLACE_PIXEL + * or INTERLACE_PLANE. + * + */ H5_HLDLL herr_t H5IMmake_image_24bit(hid_t loc_id, const char *dset_name, hsize_t width, hsize_t height, const char *interlace, const unsigned char *buffer); +/** + *------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Gets information about an image dataset + * (dimensions, interlace mode and number of associated palettes). + * + * \fg_loc_id + * \param[in] dset_name The name of the dataset + * \param[out] width The width of the image + * \param[out] height The height of the image + * \param[out] planes The number of color planes of the image + * \param[out] interlace The interlace mode of the image + * \param[out] npals The number of palettes associated to the image + * + * \return \herr_t + * + * \details H5IMget_image_info() gets information about an image + * named \p dset_name attached to the file or group specified + * by the identifier \p loc_id. + * + */ H5_HLDLL herr_t H5IMget_image_info(hid_t loc_id, const char *dset_name, hsize_t *width, hsize_t *height, hsize_t *planes, char *interlace, hssize_t *npals); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Reads image data from disk. + * + * \fg_loc_id + * \param[in] dset_name The name of the dataset to create + * \param[out] buffer Buffer with data to store the image + * + * \return \herr_t + * + * \details H5IMread_image() reads a dataset named \p dset_name + * attached to the file or group specified by the + * identifier \p loc_id. + * + */ H5_HLDLL herr_t H5IMread_image(hid_t loc_id, const char *dset_name, unsigned char *buffer); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Creates and writes a palette. + * + * \fg_loc_id + * \param[in] pal_name The name of the palette + * \param[in] pal_dims An array of the size of the palette dimensions + * \param[in] pal_data Buffer with data to be written to the dataset + * + * \return \herr_t + * + * \details H5IMmake_palette() creates and writes a dataset + * named \p pal_name. Attributes conforming to the HDF5 Image and + * Palette specification are attached to the dataset, thus + * identifying it as a palette. The palette data is of the + * type #H5T_NATIVE_UCHAR. + * + */ H5_HLDLL herr_t H5IMmake_palette(hid_t loc_id, const char *pal_name, const hsize_t *pal_dims, const unsigned char *pal_data); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Attaches a palette to an image. + * + * \fg_loc_id + * \param[in] image_name The name of the dataset to attach the palette to + * \param[in] pal_name The name of the palette + * + * \return \herr_t + * + * \details H5IMlink_palette() attaches a palette named \p pal_name + * to an image specified by \p image_name. The image dataset + * may or not already have an attached palette. If it has, + * the array of palette references is extended to hold the reference + * to the new palette. + * + */ H5_HLDLL herr_t H5IMlink_palette(hid_t loc_id, const char *image_name, const char *pal_name); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Dettaches a palette from an image. + * + * \fg_loc_id + * \param[in] image_name The name of the image dataset + * \param[in] pal_name The name of the palette + * + * \return \herr_t + * + * \details H5IMunlink_palette() dettaches a palette from an image + * specified by \p image_name. + * + */ H5_HLDLL herr_t H5IMunlink_palette(hid_t loc_id, const char *image_name, const char *pal_name); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Gets the number of palettes associated to an image. + * + * \fg_loc_id + * \param[in] image_name The name of the image dataset + * \param[out] npals The number of palettes + * + * \return \herr_t + * + * \details H5IMget_npalettes() gets the number of palettes associated to + * an image specified by \p image_name. + * + */ H5_HLDLL herr_t H5IMget_npalettes(hid_t loc_id, const char *image_name, hssize_t *npals); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Gets information about a palette dataset (dimensions). + * + * \fg_loc_id + * \param[in] image_name The name of the image dataset + * \param[in] pal_number The zero based index that identifies + * the palette + * \param[out] pal_dims The dimensions of the palette dataset + * + * \return \herr_t + * + * \details H5IMget_palette_info() gets the dimensions of the palette + * dataset identified by \p pal_number (a zero based index) + * associated to an image specified by \p image_name. + * + */ H5_HLDLL herr_t H5IMget_palette_info(hid_t loc_id, const char *image_name, int pal_number, hsize_t *pal_dims); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Gets the palette dataset. + * + * \fg_loc_id + * \param[in] image_name The name of the image dataset + * \param[in] pal_number The zero based index that identifies + * the palette + * \param[out] pal_data The palette dataset + * + * \return \herr_t + * + * \details H5IMget_palette() gets the palette dataset identified + * by \p pal_number (a zero based index) associated to an + * image specified by \p image_name. + * + */ H5_HLDLL herr_t H5IMget_palette(hid_t loc_id, const char *image_name, int pal_number, unsigned char *pal_data); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Inquires if a dataset is an image. + * + * \fg_loc_id + * \param[in] dset_name The name of the dataset + * + * \return \htri_t + * + * \details H5IMis_image() inquires if a dataset named \p dset_name, + * attached to the file or group specified by the identifier + * \p loc_id, is an image based on the HDF5 Image and Palette + * Specification. + * + */ H5_HLDLL herr_t H5IMis_image(hid_t loc_id, const char *dset_name); +/** + * -------------------------------------------------------------------------- + * \ingroup H5IM + * + * \brief Inquires if a dataset is a palette + * + * \fg_loc_id + * \param[in] dset_name The name of the dataset + * + * \return \htri_t + * + * \details H5IMis_palette() inquires if a dataset named \p dset_name, + * attached to the file or group specified by the + * identifier \p loc_id, is a palette based on the HDF5 + * Image and Palette Specification. + * + */ H5_HLDLL herr_t H5IMis_palette(hid_t loc_id, const char *dset_name); #ifdef __cplusplus |