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Problem: IMAGEGRID or CONVERTIMAGE fails or hangs when converting a TIFF image

Description

IMAGEGRID or CONVERTIMAGE hangs when converting a TIFF image.

Cause

Check to see if the TIFF has a Strip ByteCounts tag. If it does not, then the image is considered malformed and therefore is not supported.

The TIFF specification states that this tag is required.

Source:
TIFF Revision 5.0
Aldus/Microsoft Technical Memorandum
8/8/88

"... we will require StripByteCounts in TIFF X files."

Solution or Workaround

There are three potential workarounds to this problem.

1) Obtain a version of the image in a compliant format.

2) Convert the image to a new TIFF using ArcCatalog. ArcCatalog uses different libraries that can infer a value for Strip ByteCounts under certain conditions, particularly if the TIFF is uncompressed.

3) Use a third party image application to open and save the file. Depending upon the applications used, this may generate a specification-compliant output. Adobe Photoshop and Wang Imaging (Start/Programs/Accessories/Imaging) are examples.