img = HDRRead(imgfilename[, continueOnError=0][, flipit=0])
Read a high dynamic range image file and return it as Matlab double
matrix, suitable for use with Screen(‘MakeTexture’) and friends.

‘imgfilename’ - Filename of the HDR image file to load.
Returns ‘img’ - A double precision matrix of size h x w x c where h is
the height of the input image, w is the width and c is the number of
color channels: 1 for luminance images, 2 for luminance images with alpha
channel, 3 for true-color RGB images, 4 for RGB images with alpha

‘continueOnError’ Optional flag. If set to 1, HDRRead won’t abort on
error, but simply return an empty img matrix. Useful for probing if a
specific file type is supported.

‘flipit’ Optional flag: If set to 1, the loaded image is flipped upside

HDRRead is a dispatcher for a collection of reading routines for
different HDR image file formats. Currently supported are:

* Run length encoded RGBE format, read via read_rle_rgbe.m, extension is
“.hdr”. Returns a RGB image.

The reader routines are contributed code or open source / free software /
public domain code downloaded from various locations under different, but
GPL compatible licenses. See the help for the respective loaders for
copyright and author information.

Path   Retrieve current version from GitHub | View changelog