Legacy ImageMagick Discussions Archive

I'm trying to work with some TIFF output images from some newer render apps, and I'm having a bit of trouble. When attempting to run a simple identify -verbose someimage.tif, I get this output at the end:
I'm running the latest IM public Windows binary, 6.9.3-8 Q16 HDRI x64 (static). I'm assuming IM simply can't work with these kinds of files yet, is that correct?

IM happily reads tiff files with 32 (or even 64) bits/channel/pixel. To make effective use of them, you should use Q32 (or Q64), not Q16.

But I doubt that is the problem here. Can you upload a problem tiff and paste the link here?

There is a Q32 or Q64??? I don't see any compiled Windows binary listed higher than Q16 on the download page. Does that mean I'd have to compile my own? (Ick)

Many varieties of IM are not available as pre-built binaries. 4 Q-levels, integer or HDRI, Win32 or Win64, static/dynamic/portable, so that's 48 varieties before considering the delegates.

For most purposes, Q16 (int or HDRI) is all I need. One job (for large displacements maps) needs the precision of Q32.

Building IM on Windows, using Cygwin, is easy. My "Compiling IM with Cygwin" page has the gory details.

That's not an option for me, since I'd have to have Cygwin installed and running everywhere I want to run the binary. Anyone know if there are third-party compiled binaries somewhere?

see http://web.archive.org/web/201109210047 ... /binaries/ for very old ones. Sorry I do not know of any current archives for Windows other than the IM binaries and source files. You could build your own binary from source.

Ahh...nothing more than a bunch of older Q8 and Q16 stuff there.

IM 7 has now been release and has Windows binaries for Q16 HDRI. See http://www.imagemagick.org/script/binar ... hp#windows.

Also see TIFF format -defines at http://www.imagemagick.org/script/formats.php and at http://www.imagemagick.org/script/comma ... php#define

In particular, the section on -define quantum:format=type

So, are you trying to say that I have to specify additional command line switches when I run identify? Doesn't that negate the primary purpose of running identify at all?

As I said earlier:

Can you upload a problem tiff and paste the link here?

Just saying to use IM 7 to get a Q16 HDRI install.

fmw42 wrote:Just saying to use IM 7 to get a Q16 HDRI install.

Tried that, throws the same error message.

snibgo wrote:As I said earlier:

Can you upload a problem tiff and paste the link here?

Yep, give this a shot:

www.kostov.com/IM/32biterror.tif

In various versions of IM, including Q32 and Q64 HRDI, "identify" is misreading this file, reporting it as "bilevel", with the error: The image shows with no problem in Microsoft Photo Viewer.

A developer needs to look at the file. Perhaps it is corrupt, or contains a feature that IM can't handle.

Hi! I'm new here, I have the same problem and I wonder if you could solve your problem, if you did you tell me how you did it?

@memy_007: upload your problem file and paste your link here.