Search found 14 matches

by mbrijun
2020-02-29T11:07:50-07:00
Forum: Users
Topic: Geometry parameter parser ignores ^
Replies: 4
Views: 1387

Re: Geometry parameter parser ignores ^

Makes sense. What confused me was that I was following 2 different guides on the IM official website. One was referring to single quotes (which does not work), and the other was not using any quotes at all. https://imagemagick.org/script/command-line-processing.php#geometry https://www.imagemagick.o...
by mbrijun
2020-02-29T09:36:09-07:00
Forum: Users
Topic: Geometry parameter parser ignores ^
Replies: 4
Views: 1387

Geometry parameter parser ignores ^

On IM 7.0.9-26, the geometry parser quietly ignores the trailing '^'. These 2 commands result in 2 different image dimensions. The quotes are missing around 100x200^ - the trailing ^ is ignored silently. magick logo: -thumbnail 100x200^ biggerNotThinWiz.png Please note the double quotes in the secon...
by mbrijun
2020-02-24T11:09:20-07:00
Forum: Users
Topic: Different image signature between versions of IM7
Replies: 2
Views: 1457

Re: Different image signature between versions of IM7

Thank you, I can confirm that ImageMagick 7.0.9-26 Q8 now returns the same signature as 7.0.8-45.
by mbrijun
2020-02-23T07:27:13-07:00
Forum: Users
Topic: Different image signature between versions of IM7
Replies: 2
Views: 1457

Different image signature between versions of IM7

Hi, I have noticed that IM7 is producing an inconsistent signature of the same image. There seem to be 2 separate issues: 1. Q8 and Q16 produces a different signature - this was fixed in 7.0.8-45, but seems to have crept back in. C:\Users\Martynas>magick identify -verbose u:\test\test.jpg <...> sign...
by mbrijun
2019-05-13T14:04:08-07:00
Forum: Users
Topic: Turning performance of signature hashing
Replies: 16
Views: 11340

Re: Turning performance of signature hashing

@magick - I have re-run the tests with the version "7.0.8-45 2019-05-13" and the result is identical to yours for both Q8 and Q16. The issue has been successfully fixed. Thank you very much!
by mbrijun
2019-05-12T23:40:30-07:00
Forum: Users
Topic: Turning performance of signature hashing
Replies: 16
Views: 11340

Re: Turning performance of signature hashing

@magick - please say "hi" to Pistachio who greets tourists coming to a Dead Sea resort Kalia Beach. I hope this will help unifying the signature across multiple flavours of IM.

https://1drv.ms/u/s!AvJkQjHuwG2jhrF7URqE3uuH9Ik39g
by mbrijun
2019-05-12T08:49:32-07:00
Forum: Users
Topic: Turning performance of signature hashing
Replies: 16
Views: 11340

Re: Turning performance of signature hashing

@magick - thank you for looking into this. I have checked the latest available beta just now, and it seems to still generate different signatures between Q8 and Q16. >magick -version Version: ImageMagick 7.0.8-45 Q16 x64 2019-05-11 http://www.imagemagick.org Copyright: Copyright (C) 1999-2018 ImageM...
by mbrijun
2019-05-11T08:15:37-07:00
Forum: Users
Topic: Turning performance of signature hashing
Replies: 16
Views: 11340

Re: Turning performance of signature hashing

@dlemstra - the output of the version information is this: The "faster" version (IM6): >identify -version Version: ImageMagick 6.9.10-44 Q16 x64 2019-05-04 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Visu...
by mbrijun
2019-05-08T00:03:35-07:00
Forum: Users
Topic: Turning performance of signature hashing
Replies: 16
Views: 11340

Re: Turning performance of signature hashing

Maybe this belongs in the "bugs" section? I can confirm that the 4x speed drop is assosiated only with the change in version and not with HDRI.
by mbrijun
2019-05-06T07:51:40-07:00
Forum: Users
Topic: Turning performance of signature hashing
Replies: 16
Views: 11340

Re: Turning performance of signature hashing

This is the name of the installer file: "ImageMagick-7.0.8-44-Q16-x64-dll.exe". This is the "recommended" download under the Windows section. I can see that the HDRI-enabled versions have "HDRI" in their file name of the installer.
by mbrijun
2019-05-06T01:52:37-07:00
Forum: Bugs
Topic: Possible partial use of pixels while creating signatures
Replies: 1
Views: 3703

Possible partial use of pixels while creating signatures

Not sure if this is a cosmetic issue or a bug. I have observed it in both 6.9.10-44 and 7.0.8-44 on 64-bit Windows 10. When using "-monitor" with "identify", it seems to omit the last row of pixels from the progress. In my case it seems to read 2013 out of 2014 rows of pixels, as can be seen in the ...
by mbrijun
2019-05-06T01:38:19-07:00
Forum: Users
Topic: Turning performance of signature hashing
Replies: 16
Views: 11340

Re: Turning performance of signature hashing

Did some more experimenting this morning. The "-limit thread 1" does not appear to have any impact at all. The use of multi-threading in my code scales the performance in a linear fashion, as long as the number of threads in the code is less than the threads available on the CPU. Any additional thre...
by mbrijun
2019-05-05T12:47:27-07:00
Forum: Users
Topic: Turning performance of signature hashing
Replies: 16
Views: 11340

Re: Turning performance of signature hashing

snibgo, thanks for your prompt reply. I did some testing from the command line, with and without "-limit thread 1". The Windows task manager reports the thread count as 2 in *both* cases, with the average CPU usage of 12%. The directory with images was placed on an SSD drive to rule out disk I/O. ht...
by mbrijun
2019-05-05T10:21:22-07:00
Forum: Users
Topic: Turning performance of signature hashing
Replies: 16
Views: 11340

Turning performance of signature hashing

Hi, I am trying to create signatures of around 70,000 photos, mostly JPEG and Nikon NEF. The version is "ImageMagick-7.0.8-44-Q16-x64-dll" on Windows 10. The configuration is out-of-the box, with no tweaks to the XML configuration files. The CPU is i7-2600 @ 3.40GHz with 8GB RAM. It takes in the reg...