Florian is completely correct. I went down the wrong path and thanks to a typo thought I had the file loaded with PIL when I did not. The PD/GEM people should still make sure the tags are updated correctly when writing a baseline tiff image. You need to be able to handle ExtraSamples to claim that you can handle TIFF.
TIFF 6.0 Specification Final-June 3, 1992 These are the required fields for RGB images (in numerical order): TagName Decimal Hex Type Value ImageWidth 256 100 SHORT or LONG ImageLength 257 101 SHORT or LONG BitsPerSample 258 102 SHORT 8,8,8 Compression 259 103 SHORT 1 or 32773 PhotometricInterpretation 262 106 SHORT 2 StripOffsets 273 111 SHORT or LONG SamplesPerPixel 277 115 SHORT 3 or more RowsPerStrip 278 116 SHORT or LONG StripByteCounts 279 117 LONG or SHORT XResolution 282 11A RATIONAL YResolution 283 11B RATIONAL ResolutionUnit 296 128 SHORT 1, 2 or 3 The BitsPerSample values listed above apply only to the main image data. If ExtraSamples are present, the appropriate BitsPerSample values for those samples must also be included -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Florian Höch Sent: Wednesday, November 05, 2008 7:25 AM To: image-sig@python.org Subject: Re: [Image-SIG] PIL not loading some TIFF files? Hello, >> mask.tif loads fine: >> >>>>> image = Image.open("mask.tif") >>>>> >> >> but store-00000.tif fails: PIL does not support alpha channels in TIFF files. Regards, Florian _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig *************************************************************************** The information contained in this communication is confidential, is intended only for the use of the recipient named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please resend this communication to the sender and delete the original message or any copy of it from your computer system. Thank You. **************************************************************************** _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig
