2004.10.01 09:59 "[Tiff] quad-tile", by Joris Van Damme

2004.10.02 14:16 "Re: [Tiff] quad-tile", by Andrey Kiselev

The libtiffpic suite (thats where you got this, right?)

This particular file comes from a compressed file named 'pics-3.6.1.tar.gz', that in turn comes from some LibTiff place (don't recall where exactly, but somewhere on your pages for sure). I seem to remember the was a similar testsuite in the 3.5.7 days, that also contained variants of this same image, though I never bothered to look at the tagsets more closely at that time. So probably its been around for quite a while. So if 'libtiffpic suite' is anything new, than you're referring to a source I know nothing about and this image did not come from.


pics-3.6.1.tar.gz is the same testsuite you thinking about. I have added one or two images to it and it is now packaged with the same naming scheme as libtiff itself, so users can easily pick-up thwe latest variant.

So, I think the better solution might be to segregate our suite of test images into files considered to be standard and valid, and those that are invalid but that we want to work with anyways for purposes of interoperability.

Yes, absolutely defenetly.

I'm agree. That will be done for 3.7.0.

I have been leaving the sample image management up to Andrey though, so perhaps he will have further thoughts. I do believe he is planning to augment the set of test images as he works on a libtiff test suite.

Ah, I was toying with the same idea. Seeing I can contribute so little C (let alone makefiles ;-)), perhaps this way I can ease Andrey's workload?

The test suite I'm working on right now doesn't use the external image set. All test images are generated by the test cases from the internal data arrays and being compared with that images after reading the files back. Any help will be greatly appreciated.

If not, perhaps I can at least contribute a suggestion: a HTML index into the testimage, explaining what is what, and what is valid, and including tag dumps (and maybe even a reference thumbnail in a HTML-friendly and independent format like PNG) could increase the usefullness of a testimage suite tremendously.

There is a short README file in the pics package, but I'm agree, it is not enough for good test suite.

Andrey V. Kiselev
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