Legacy ImageMagick Discussions Archive

You have found a feature that was added last year. The first image has a resource block that contains layer information. Extracting one of the layers is possible as you have seen. But you cannot 'only' get the first image because the second image (layer) is part of the first image. You can disable ...

For anyone else who encounters this issue, you can use libtiff directly to isolate the first extent:

Here's another example image: https://assets.weaveup.com/print_rasters/c6f95170d8a5aebb1ee7e32bf52325b7.tif locriani@Schreckhorn:~ $ identify c6f95170d8a5aebb1ee7e32bf52325b7.tif c6f95170d8a5aebb1ee7e32bf52325b7.tif[0] TIFF 1013x325 1013x325+0+0 8-bit CIELab 232KB 0.000u 0:00.000 ...

The subfile is there, I assure you. As per the TIFF spec: There may be more than one IFD in a TIFF file. Each IFD defines a subfile. One potential use of subfiles is to describe related images, such as the pages of a facsimile transmission. A Baseline TIFF reader is not required to read any IFDs ...

It appears the difference is that the images I have with the issue have the following subfile tag: While the generated image above that works has the following subfile tag:

Here's an image with the issue:
https://assets.weaveup.com/uploads/uplo ... 11a224.tif

It appears to affect all the images we have had uploaded (generally created in Photoshop or NedGraphics), but not the example generated by imagemagick you just posted.

Confirmed that this is an issue with OpenMP support.

It is impossible to extract both images from the tiff into separate images. You can extract [0, 1] into one image, and [1] into another image, but not [0]. Have you tried using "[0]"? convert 5c7cf6f8-7d4d-47a8-b2f4-fff17911a224.tif[0] -scene 0 a%d.tif ("-scene 0" is irrelevant, as that is the ...

What do you think doesn't work correctly? convert 5c7cf6f8-7d4d-47a8-b2f4-fff17911a224.tif -scene 0 a%d.tif When the input tiff contains two images, this should create one output tiff file that contains those two images. The output file will be named "a0.tif". It is impossible to extract both ...

Hello! With either the latest ImageMagick 6.9.5 or ImageMagick 7.0.2, tiff multipage extraction does not function correctly: vagrant@vagrant-ubuntu-trusty-64:~$ convert --version Version: ImageMagick 7.0.2-9 Q16 x86_64 2016-08-26 http://www.imagemagick.org Copyright: Copyright (C) 1999-2016 ...

Yeah, the lab conversions are part of the pipeline because it forks in several places and we need CIELab output for the majority of the images (just not the pngs). I was actually able to resolve this issue a few minutes ago by grabbing the bytes directly from imagemagick instead of having ...

Hello! I've been encountering a very persistent issue with the ImageMagick 6.9.* series (I have attempted to resolve this by trying every version in this series). This is using RMagick, but I am able to duplicate the issue consistently by reproducing the processing pipeline using the command line ...