Search found 19 matches

by anyoneis
2013-10-24T12:06:12-07:00
Forum: Bugs
Topic: Integer Overflow on Large Tiff Image
Replies: 6
Views: 6956

Re: Integer Overflow on Large Tiff Image

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 Ba...
by anyoneis
2013-10-24T10:21:47-07:00
Forum: Bugs
Topic: Integer Overflow on Large Tiff Image
Replies: 6
Views: 6956

Integer Overflow on Large Tiff Image

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&...
by anyoneis
2011-08-31T08:53:08-07:00
Forum: Users
Topic: Using "divide and conquer" for large image processing
Replies: 3
Views: 7395

Re: Using "divide and conquer" for large image processing

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 b...
by anyoneis
2011-08-30T16:23:49-07:00
Forum: Users
Topic: Using "divide and conquer" for large image processing
Replies: 3
Views: 7395

Re: Using "divide and conquer" for large image processing

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...
by anyoneis
2011-08-30T12:27:03-07:00
Forum: Users
Topic: Using "divide and conquer" for large image processing
Replies: 3
Views: 7395

Using "divide and conquer" for large image processing

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) conver...
by anyoneis
2011-08-28T19:54:18-07:00
Forum: Users
Topic: I need help using BigTiff with ImageMagick
Replies: 4
Views: 9112

Re: I need help using BigTiff with ImageMagick

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!
by anyoneis
2011-08-28T11:20:56-07:00
Forum: Users
Topic: I need help using BigTiff with ImageMagick
Replies: 4
Views: 9112

Re: I need help using BigTiff with ImageMagick

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.
by anyoneis
2011-08-27T17:47:38-07:00
Forum: Users
Topic: ImageMagick can't decode a very large tiff?
Replies: 10
Views: 19789

Re: ImageMagick can't decode a very large tiff?

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
by anyoneis
2011-08-26T09:34:36-07:00
Forum: Users
Topic: Need to Force "convert" to Produce Image Type DirectClass
Replies: 14
Views: 30616

Re: Need to Force "convert" to Produce Image Type DirectCla

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

Thanks All!

David
by anyoneis
2011-08-25T18:38:55-07:00
Forum: Users
Topic: I need help using BigTiff with ImageMagick
Replies: 4
Views: 9112

I need help using BigTiff with ImageMagick

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, b...
by anyoneis
2011-08-25T15:21:27-07:00
Forum: Users
Topic: ImageMagick can't decode a very large tiff?
Replies: 10
Views: 19789

Re: ImageMagick can't decode a very large tiff?

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...
by anyoneis
2011-08-25T15:19:34-07:00
Forum: Users
Topic: Need to Force "convert" to Produce Image Type DirectClass
Replies: 14
Views: 30616

Re: Need to Force "convert" to Produce Image Type DirectCla

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\CD...
by anyoneis
2011-08-16T14:03:11-07:00
Forum: Users
Topic: ImageMagick can't decode a very large tiff?
Replies: 10
Views: 19789

Re: ImageMagick can't decode a very large tiff?

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 immed...
by anyoneis
2011-08-16T13:52:09-07:00
Forum: Users
Topic: ImageMagick can't decode a very large tiff?
Replies: 10
Views: 19789

Re: ImageMagick can't decode a very large tiff?

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

David