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Gray Wedge 15.tif
Posted: March 21st, 2010, 10:13 pm
by cliff
When I go to Transformations > HDR/Stack Images, click on the OPT button, and choose Open Test Image, I get an error message saying, "Error opening Gray Wedge 15.tif. File not found"
Is this a problem? Where can I find this file?
Thanks,
Cliff
Re: Gray Wedge 15.tif
Posted: March 21st, 2010, 10:25 pm
by ksinkel
The Gray Wedge 15.tif file is located in your Picture Window Pro 5.0 folder.
It is also available from our web site here:
http://dl-c.com/content/view/34/55/ The file is called Q-13 Grayscale Target.
Kiril
Re: Gray Wedge 15.tif
Posted: March 21st, 2010, 10:48 pm
by cliff
Thanks Kiril,
The file was there. I just had to rename it. It's working fine now.
Re: Gray Wedge 15.tif
Posted: March 22nd, 2010, 8:24 am
by tomczak
A little trick on the topic: the Gray Wedge 15.tif, as distributed, is uncompressed and takes ~1.2MB of the disk space. If you open it and re-save as TIFF under the same name, but use either LZW and or ZIP compression, the file will shrink to some 9KB! without losses. The reason is that the image consists of large patches of constant values that compress v. well, losslessly.