Constructor
VipsImageradload
Declaration [src]
int
vips_radload (
const char* filename,
VipsImage** out,
...
)
Description [src]
Read a Radiance (HDR) file into a VIPS image.
Radiance files are read as VIPS_CODING_RAD. They have one byte for each of
red, green and blue, and one byte of shared exponent. Some operations (like
vips_extract_area()) can work directly with images in this format, but
mmany (all the arithmetic operations, for example) will not. Unpack
VIPS_CODING_RAD images to 3 band float with vips_rad2float() if
you want to do arithmetic on them.
This operation ignores some header fields, like VIEW and DATE. It will not rotate/flip as the FORMAT string asks.
Sections of this reader from Greg Ward and Radiance with kind permission.
See also
This constructor is not directly available to language bindings.
Parameters
filename-
Type:
const char*File to load.
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string. out-
Type:
VipsImageOutput image.
The argument will be set by the function. The caller of the function takes ownership of the returned data, and is responsible for freeing it. ...-
Type:
NULL-terminated list of optional named arguments.