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EXRSTDATTR(1) User Commands EXRSTDATTR(1) NAME exrstdattr - set exr image metadata SYNOPSIS exrstdattr [commands] infile outfile DESCRIPTION Read OpenEXR image file infile, set the values of one or more attrib- utes in the headers of the file, and save the result in outfile. In- file and outfile must not refer to the same file (the program cannot edit an image file "in place"). Command for selecting headers: -part i If i is greater than or equal to zero, and less than the number of parts in the input file, then the header for part i becomes "current." If i is "any" or -1, then all headers become current. Subsequent attribute setting commands affect only the current header or headers. All headers are current before the first -part command. For example, the command sequence -focus 3 -part 2 -aperture 8 -expTime 0.01 -part any -owner luke sets the focus and owner attributes in all headers, as well as the aperture and expTime attributes in the header of part 2. Commands for setting attribute values: -chromaticities f f f f f f f f CIE xy chromaticities for the red, green and blue primaries, and for the white point (8 floats) -whiteLuminance f white luminance, in candelas per square meter (float, >= 0.0) -adoptedNeutral f f CIE xy coordinates that should be considered "neutral" during color rendering. Pixels in the image file whose xy coordinates match the adoptedNeutral value should be mapped to neutral val- ues on the display. (2 floats) -renderingTransform s name of the CTL rendering transform for this image (string). This attribute is deprecated. -lookModTransform s name of the CTL look modification transform for this image (string). This attribute is deprecated. -xDensity f horizontal output density, in pixels per inch (float, >= 0.0) -owner s name of the owner of the image (string) -comments s additional information about the image (string) -capDate s date when the image was created or captured, in local time (string, formatted as YYYY:MM:DD hh:mm:ss) -utcOffset f offset of local time at capDate from UTC, in seconds (float, UTC == local time + x) -longitude f -latitude f -altitude f location where the image was recorded, in degrees east of Green- wich and north of the equator, and in meters above sea level (float) -focus f the camera's focus distance, in meters (float, > 0, or "infin- ity") -expTime f exposure time, in seconds (float, >= 0) -aperture f lens apterture, in f-stops (float, >= 0) -isoSpeed f effective speed of the film or image sensor that was used to record the image (float, >= 0) -envmap s indicates that the image is an environment map (string, LATLONG or CUBE) -framesPerSecond i i playback frame rate expressed as a ratio of two integers, n and d (the frame rate is n/d frames per second) -keyCode i i i i i i i key code that uniquely identifies a motion picture film frame using 7 integers: * film manufacturer code (0 - 99) * film type code (0 - 99) * prefix to identify film roll (0 - 999999) * count, increments once every perfsPerCount perforations (0 - 9999) * offset of frame, in perforations from zero-frame reference mark (0 - 119) * number of perforations per frame (1 - 15) * number of perfora- tions per count (20 - 120) -timeCode i i SMPTE time and control code, specified as a pair of 8-digit base-16 integers. The first number contains the time address and flags (drop frame, color frame, field/phase, bgf0, bgf1, bgf2). The second number contains the user data and control codes. -wrapmodes s if the image is used as a texture map, specifies how the image should be extrapolated outside the zero-to-one texture coordi- nate range (string, e.g. "clamp" or "periodic,clamp") -pixelAspectRatio f width divided by height of a pixel (float, >= 0) -screenWindowWidth f width of the screen window (float, >= 0) -screenWindowCenter f f center of the screen window (2 floats) -string s s custom string attribute (2 strings, attribute name and value) -float s f custom float attribute (string + float, attribute name and value) -int s i custom integer attribute (string + integer, attribute name and value) Other options: -erase s remove attribute with given name -h, --help print this message --version print version information REPORTING BUGS Report bugs via https://github.com/AcademySoftwareFounda- tion/openexr/issues or email security@openexr.com COPYRIGHT Copyright (C) Contributors to the OpenEXR Project License BSD-3-Clause OpenEXR 3.3.3 https://openexr.com April 2025 EXRSTDATTR(1)
NAME | SYNOPSIS | DESCRIPTION | REPORTING BUGS | COPYRIGHT
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