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<head>
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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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<meta name="Content-Style" content="text/css">
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<title>TIFFTILE</title>
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TIFFTILE
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NAME
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SYNOPSIS
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DESCRIPTION
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DIAGNOSTICS
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SEE ALSO
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NAME
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cols="2" cellspacing="0" cellpadding="0">
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TIFFTileSize, TIFFTileRowSize, TIFFVTileSize,
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TIFFDefaultTileSize, TIFFComputeTile, TIFFCheckTile,
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TIFFNumberOfTiles − tile-related utility routines
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SYNOPSIS
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cols="2" cellspacing="0" cellpadding="0">
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#include <tiffio.h>
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void TIFFDefaultTileSize(TIFF *tif,
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uint32 *tw, uint32 *th)
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tsize_t TIFFTileSize(TIFF *tif)
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tsize_t TIFFTileRowSize(TIFF *tif)
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tsize_t TIFFVTileSize(TIFF *tif, uint32
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nrows)
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ttile_t TIFFComputeTile(TIFF *tif, uint32
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x, uint32 y, uint32 z,
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tsample_t sample)
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int TIFFCheckTile(TIFF *tif, uint32
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x, uint32 y, uint32 z,
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tsample_t sample)
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ttile_t TIFFNumberOfTiles(TIFF *tif)
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DESCRIPTION
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cols="2" cellspacing="0" cellpadding="0">
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TIFFDefaultTileSize returns the pixel width and
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height of a reasonable-sized tile; suitable for setting up
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the TileWidth and TileLength tags. If the
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tw and th values passed in are non-zero, then
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they are adjusted to reflect any compression-specific
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requirements. The returned width and height are constrained
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to be a multiple of 16 pixels to conform with the
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<small>TIFF</small> specification.
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TIFFTileSize returns the equivalent size for a
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tile of data as it would be returned in a call to
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TIFFReadTile or as it would be expected in a call to
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TIFFWriteTile.
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TIFFVTileSize returns the number of bytes in a
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row-aligned tile with nrows of data.
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TIFFTileRowSize returns the number of bytes of a
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row of data in a tile.
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TIFFComputeTile returns the tile that contains the
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specified coordinates. A valid tile is always returned;
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out-of-range coordinate values are clamped to the bounds of
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the image. The x and y parameters are always
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used in calculating a tile. The z parameter is used
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if the image is deeper than 1 slice
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(ImageDepth>1). The sample parameter is
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used only if data are organized in separate planes
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(PlanarConfiguration=2).
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TIFFCheckTile returns a non-zero value if the
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supplied coordinates are within the bounds of the image and
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zero otherwise. The x parameter is checked against
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the value of the ImageWidth tag. The y
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parameter is checked against the value of the
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ImageLength tag. The z parameter is checked
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against the value of the ImageDepth tag (if defined).
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The sample parameter is checked against the value of
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the SamplesPerPixel parameter if the data are
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organized in separate planes.
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TIFFNumberOfTiles returns the number of tiles in
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the image.
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DIAGNOSTICS
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cols="2" cellspacing="0" cellpadding="0">
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None.
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SEE ALSO
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cols="2" cellspacing="0" cellpadding="0">
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TIFFReadEncodedTile(3TIFF),
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TIFFReadRawTile(3TIFF), TIFFReadTile(3TIFF),
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TIFFWriteEncodedTile(3TIFF),
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TIFFWriteRawTile(3TIFF), TIFFWriteTile(3TIFF),
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libtiff(3TIFF)
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Libtiff library home page:
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http://www.simplesystems.org/libtiff/
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</body>
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</html>
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