Legacy ImageMagick Discussions Archive

I tried the latest DLL version and got this information on the image: Image: J100_MP_0023.tif Format: TIFF (Tagged Image File Format) Mime type: image/tiff Class: DirectClass Geometry: 35712x29440+0+0 Resolution: 44038x44040 Print size: 0.810936x0.668483 Units: PixelsPerCentimeter Type: TrueColor ...

The file is here: https://dl.dropboxusercontent.com/u/109 ... P_9999.tif

Thanks,
David

I have a tif which ran without errors on ImageMagick-6.8.6-9-Q16-x64-static.exe but ImageMagick-6.8.7-2-Q16-x86-static.exe give an error: Thu 10/24/2013 @ 9:56:42.10 :convert "TIFF64:J100_MP_0023.tif[0]" -crop 8x8@ -scene 0 +repage -quality 100 "C:\imagemagick\extract_jpg\J100_%d.jpg" producing type ...

This is a naive "pipe dream." As we used to say in the microcomputer industry about "negative incremental return" schemes, "We lose a little bit on each one but we make it up in volume." ;-) I will be better off just using the "-crop XxY@" syntax pointed out by Fred to produce the output tiles ...

see http://www.imagemagick.org/Usage/crop/#crop_equal That's a handy beast! I missed that. convert image.tif[0] -crop "4x4@" +repage -define PNG:color-type=2 image_p0_%02d.png "%02d" gives me a neater "ls" or "dir"! By default the numbering starts at 0 (or in this case 00) so -scene is not needed ...

I have some large tiff files that I am trying to process and I'm looking for performance improvements. Each file has multiple pages, and I am interested in extracting a single page, then breaking it up into 16 sub-images for processing outside of IM. The steps I am currently following are: 1 ...

Still no joy. I get various build problems with all of these.

I have access to linux boxes if that will help get me a solution!

Perhaps Windows is not that different. Has anyone installed the libtiff from aperio and gotten it to work on any platform? I suspect there were lessons learned that might apply to my efforts.

I've spent two days on this and I am not any closer. Can I please get a few more hints?

I can build the Static MT version of the utilities, but I have no idea how to use the libtiff.lib static link library from aperio or the 4.0 beta library.

Thanks,
David

Good eye, mate! So it is! Problem solved.

Thanks All!

David

I got the following analysis of my large TIFF conversion problem and advice: Your image is a BigTIFF and it requires that ImageMagick be built with the BigTIFF version of the TIFF library. We confirmed your image can be read with ImageMagick built with libtiff-4.0 Beta. I have been fishing around ...

Thank you sir or madam! I will give that a try if I can figure out how! For anyone with a similar problem, try overriding the default file type sensing using a syntax such as: identify tiff:"WRL 15 1b.tif" You will then get more helpful output: identify: This is a BigTIFF file. This format not ...

I may be misunderstanding, but the problem I posted about was forcing convert to produce DirectClass. I am using the output of convert as input to another image processing utility. Just in case, I tried adding the define, as in: c:\Program Files (x86)\ImageMagick-6.7.1-Q8\convert "\\silo\cds\CDS-CS ...

furthermore, you may very well be running out of memory on a huge image. see http://www.imagemagick.org/Usage/files/#massive I don't think so. I have 148GB available on the MAGICK_TMPDIR drive. Identify doesn't need any output space so I think that is the only disk requirement. Identify fails ...

Sorry. The site gave me a stale link:
https://safesync.com/LMHmmPNQ/WRL_15_1B ... tGEaBvtyTo

David