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https://issues.apache.org/jira/browse/IMAGING-362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17764633#comment-17764633
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Gary Lucas commented on IMAGING-362:
------------------------------------

 

Here's an example from ReadTagsAndImages.java

 
{code:java}
 
 273 (0x111: PreviewImageStart): 2228, 2392, 2552, 2716, 2884, 3044, 3200, 
3364, 3520, 3660
 277 (0x115: SamplesPerPixel): 3 (1 Short)
 278 (0x116: RowsPerStrip): 3 (1 Long)
 279 (0x117: PreviewImageLength): 164, 160, 162, 165, 157, 155, 162, 156, 138, 
172, 202, 22
{code}
 

> TIFF tags 0x111 and 0x117 have wrong descriptive names
> ------------------------------------------------------
>
>                 Key: IMAGING-362
>                 URL: https://issues.apache.org/jira/browse/IMAGING-362
>             Project: Commons Imaging
>          Issue Type: Bug
>          Components: Format: TIFF
>    Affects Versions: 1.0-alpha2
>            Reporter: Gary Lucas
>            Priority: Minor
>             Fix For: 1.0-alpha3
>
>
> The TIFF standard defines metadata elements using integer code values. For 
> code values 0x111 and 0x117, Commons Imaging associates these with incorrect 
> names "PreviewImageStart" and "PreviewImageLength".  According to the 
> specification "TIFF Revision 6.0 Final – June 3, 1992", the correct names for 
> these are "StripOffsets" and "StripByteCounts".   In fact, the word "preview" 
> never even shows up in the TIFF specification. 
> This should be an easy fix.  No new test cases will be required, since these 
> are descriptive elements only.
> The role of these two elements is to define the file position and length of 
> data elements for TIFF files that are encoded as strips.
> One of the example programs in the Commons Imaging distribution (which is not 
> compiled) is called ReadTagsAndImages.java.  It can be used to dump TIFF tags.
>  
>  



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