Posted by
Md Tamjidul Hoque on
URL: http://imagej.273.s1.nabble.com/Tiff-image-to-Stack-generation-Tag-problem-unknown-field-with-tag-50839-0xc697-encountered-tp3692040p3692042.html
Dear Wayne
the '50839' tag problem is over but Acapella is showing different
error: "Data item not found in the current data block".
Perhaps it is not getting the 2nd page - as I am having two image for 2
channel - channel 1 for live and channel 2 for dead
thus the complete error is appearing as:
>> Command line syntax incorrect or data item not found (_["image" &
Dead_Channel]): Data item not found in the current datablock: _["image" &
Dead_Channel] <<
Thanks
Tamjid
On Wed, Jun 24, 2009 at 6:22 AM, Wayne Rasband <
[hidden email]> wrote:
> Dear All
>>
>> Problem description:
>> ===============
>> I was making multi-paged Tiff image using ImageJ (using option: Image
>> to Stack) to be analyzed by already developed
>>
>> script in Acapella (Opera). It does not recognize the tag file ' 50839 '
>> added by ImageJ [Error Message: unknown field with tag 50839 (0xc697)
>> encountered]
>>
>> and hence can not proceed.
>>
>
> This is a bug in Acapella. TIFF readers are supposed ignore tags they do
> not recognize.
>
> On the other hand, other commercial Tiff image joiner/ merger does not add
>> that specific tag and hence Acapella
>>
>> works smoothly for those images and I will be using ImageJ.
>>
>>
>> Queries:
>> ======
>> (1) Looking forward for solution/suggestion.
>>
>
> Upgrade to ImageJ 1.43b, run the Image>Stacks>Images to Stack command,
> disable "Use Titles as Labels" in the dialog box, and tag 50839 will not be
> created when you save the resulting stack as a TIFF file.
>
> (2) Is it possible have the 'Image to Stack' source code - so that I can
>> check/modify and prepare the code for batch/auto conversion of many
>> images.
>>
>
> The source for the ImagesToStack class is at <
>
http://rsb.info.nih.gov/ij/source/ij/plugin/ImagesToStack.java>. The
> complete source for ImageJ 1.43b is at <
>
http://rsb.info.nih.gov/ij/download/src/>.
>
> (3) Why is the tag '50839' needed?
>>
>
> It is the private TIFF tag used by ImageJ to save metadata, such as stack
> slice labels.
>
> -wayne
>