[Insight-developers] Re: Some update on charlene tiff image

[Mathieu Malaterre]

Ok,

	My mistake I don't think this is a 'random access tiff'. I was confused 
by 'The gimp' message.

	Here is my manip:

$ tiffsplit 20xDIC-1.tif page
$ gimp pageaa.tif

But the real warning:
[Quantization table 0x00 was not defined.]

was hidden by another gimp warning:
[Compression algorithm does not support random access.]

Mathieu


Mathieu Malaterre wrote:
> Julien,
> 
>     I'll assume you are the guru for multipages tiff.
>     Jim recently send me a bug report about a broken tiff image ITK 1.8 
> used to read. The problem is that this is a 'random access tiff' image. 
> Here is a tiffinfo (*), it used to work in previous version since only 
> the first page was read.
>     If I understand correctly they are only interested in the first page 
> since I could not find any software that could read the second slice 
> (you can extract the second slice using 'tiffsplit'). It seems that the 
> second image is to be considered toward the first one, and you can not 
> decorelate them.
> 
>     Anyway could you please look into it ?
> 
>     Another /much simpler/ solution would be to only read the first page.
> 
> Thanks
> Mathieu
> 
> (*)
> $ tiffinfo /tmp/20xDIC-1.tif
> /tmp/20xDIC-1.tif: Warning, unknown field with tag 37553 (0x92b1) ignored.
> /tmp/20xDIC-1.tif: Warning, unknown field with tag 37554 (0x92b2) ignored.
> TIFF Directory at offset 0x154008
>   Subfile Type: (0 = 0x0)
>   Image Width: 1360 Image Length: 1024
>   Bits/Sample: 8
>   Compression Scheme: None
>   Photometric Interpretation: min-is-black
>   Date & Time: "2004:11:01 16:51:16"
>   Software: "SPOT 4.0"
>   Orientation: row 0 top, col 0 lhs
>   Samples/Pixel: 1
>   Rows/Strip: 20
>   Min Sample Value: 0
>   Max Sample Value: 255
>   Planar Configuration: single image plane
> TIFF Directory at offset 0x1545ca
>   Subfile Type: reduced-resolution image (1 = 0x1)
>   Image Width: 61 Image Length: 46
>   Bits/Sample: 8
>   Compression Scheme: JPEG
>   Photometric Interpretation: min-is-black
>   Orientation: row 0 top, col 0 lhs
>   Samples/Pixel: 1
>   Rows/Strip: 32
>   Min Sample Value: 0
>   Max Sample Value: 255
>   Planar Configuration: single image plane
>   JPEG Tables: (289 bytes)
>