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April 2007
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2007.04.05 16:07 "Floating point RGBA", by Mark Meijer
I have a file I want to read. I have tried opening using devIL, which uses libTiff but returns IL_LIB_TIFF_ERROR. It opens fine in Photoshop but it seems floating point isn't fully supported in libTiff? thanks for any insight, Some info on the file.. C:\temp\tiff-3.8.2-1-bin\bin>tiffinfo ConvenienceStoreFloor_1a_shape.tif TIFF Directory at offset 0xa (10) Subfile Type: (0 = 0x0) Image Width: 256 Image Length: 256 Resolution: 72, 72 Bits/Sample: 32 Sample Format: IEEE floating point Compression Scheme: PackBits Photometric Interpretation: RGB color Extra Samples: 1<assoc-alpha> Samples/Pixel: 4 Rows/Strip: 256 Planar Configuration: single image plane SubFileType (1 Long): Zero ImageWidth (1 Long): 256 ImageLength (1 Long): 256 BitsPerSample (4 Short): 32, 32, 32, 32 Compression (1 Short): PackBits (aka Macintosh RLE) Photometric (1 Short): RGB StripOffsets (1 Long): 252 SamplesPerPixel (1 Short): 4 RowsPerStrip (1 Long): 256 StripByteCounts (1 Long): 700221 XResolution (1 Rational): 72 YResolution (1 Rational): 72 PlanarConfig (1 Short): Contig ExtraSamples (1 Short): 1 SampleFormat (4 Short): 3, 3, 3, 3