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Mathematica Import/Export Format

PXR (.pxr)

Pixar image format.
Raster image format.
Legacy format used in computer animation production systems and in medical imaging.
PXR is an acronym derived from Pixar.
Stores images as RGB or grayscale bitmaps at a resolution of 8 bits per channel.
Binary format.
Does not use compression.
Developed in 1986 by Pixar for the Pixar Image Computer workstation.
  • Import["file.pxr"] imports a PXR file, returning a graphics object.
  • Export["file.pxr", expr] exports graphics or any other expression as an image to a PXR file.
  • Import["file.pxr"] returns an expression of the form Graphics[Raster[data], opts], where data is an array of RGB color values.
  • Export["file.pxr", expr] creates a PXR image with the same image size as the displayed form of expr.
  • Because PXR is a raster image format, all fonts are rasterized on export.
  • Import["file.pxr", elem] imports the specified element from a PXR file.
  • Import["file.pxr", {elem, suba, subb, ...}] imports a subelement.
  • Import["file.pxr", {{elem1, elem2, ...}}] imports multiple elements.
  • The import format can be specified with Import["file", "PXR"] or Import["file", {"PXR", elem, ...}].
  • Export["file.pxr", expr, elem] creates a PXR file by treating expr as specifying element elem.
  • Export["file.pxr", {expr1, expr2, ...}, {{elem1, elem2, ...}}] treats each expri as specifying the corresponding elemi.
  • Export["file.pxr", expr, opt1->val1, ...] exports expr with the specified option elements taken to have the specified values.
  • Export["file.pxr", {elem1->expr1, elem2->expr2, ...}, "Rules"] uses rules to specify the elements to be exported.
  • See the reference pages for full general information on Import and Export.
"Elements" list of elements and options available in this file
"Rules"full list of rules for each element and option
"Options"list of rules for options, properties, and settings
  • Data representation elements:
"Data"array of color values
"Graphics"Graphics object representing an image
"GrayLevels"array of normalized gray-level values
"RGBColorArray"array of RGBColor objects
  • Import and Export by default use the "Graphics" element for PXR files.
"BitDepth"bits used to represent each color channel in the file
"ColorSpace"color encoding used in the file
"ImageSize"raster dimensions
  • General option:
ImageSizeAutomaticoverall image size