Devuan bug report logs - #800
imagemagick: Imagemagick -fft produces a white image for the magnitude image.

Package: imagemagick; Reported by: Martin Hodges <[email protected]>; Keywords: debian; dated Mon, 23 Oct 2023 21:08:02 UTC; Maintainer for imagemagick is (unknown).

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Date: Tue, 24 Oct 2023 19:05:28 +0100
From: Mark Hindley <[email protected]>
To: Martin Hodges <[email protected]>, [email protected]
Cc: Devuan Bug Tracking System <[email protected]>
Subject: Re: bug#800: imagemagick: Imagemagick -fft produces a white image
 for the magnitude image.
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Control: tags -1 debian

Martin,

Thanks for this.

On Mon, Oct 23, 2023 at 11:04:57PM +0200, Martin Hodges wrote:
> Package: imagemagick
> Version: 8:6.9.11.60+dfsg-1.3+deb11u1
> Severity: normal
> X-Debbugs-Cc: [email protected]

Devuan does not fork src:imagemagick and uses Debian's packages directly without
recompilation. Please report this issue directly to the Debian BTS to be
addressed.

Thanks

Mark

---

Information forwarded to [email protected], [email protected]:
bug#800; Package imagemagick. Full text available.

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Added tag(s) debian. Request was from Mark Hindley <[email protected]> to [email protected]. Full text available.

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Date: Tue, 24 Oct 2023 19:05:28 +0100
From: Mark Hindley <[email protected]>
To: Martin Hodges <[email protected]>, [email protected]
Cc: Devuan Bug Tracking System <[email protected]>
Subject: Re: bug#800: imagemagick: Imagemagick -fft produces a white image
 for the magnitude image.
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Control: tags -1 debian

Martin,

Thanks for this.

On Mon, Oct 23, 2023 at 11:04:57PM +0200, Martin Hodges wrote:
> Package: imagemagick
> Version: 8:6.9.11.60+dfsg-1.3+deb11u1
> Severity: normal
> X-Debbugs-Cc: [email protected]

Devuan does not fork src:imagemagick and uses Debian's packages directly without
recompilation. Please report this issue directly to the Debian BTS to be
addressed.

Thanks

Mark

---

Information forwarded to [email protected], [email protected]:
bug#800; Package imagemagick. Full text available.

---

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From: Martin Hodges <[email protected]>
To: Devuan Bug Tracking System <[email protected]>
Subject: imagemagick: Imagemagick -fft produces a white image for the magnitude image.
Date: Mon, 23 Oct 2023 23:04:57 +0200
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Package: imagemagick
Version: 8:6.9.11.60+dfsg-1.3+deb11u1
Severity: normal
X-Debbugs-Cc: [email protected]

Dear Maintainer,

The -fft conversion previously produced a very dark magnitude image. The 
present versions 
magnitude image is very light.
Testing with the 8x16 white rectangle on black background produces an image 
which appears 
to be related the image shown on https://www.imagemagick.org/Usage/fourier/
Section:- Spectrum of a Rectangle Pattern Image, but the non-black areas have 
been increased
in value so much that there is almost no grey.

Version 6.9.10-23 performs the conversion as expected.

-- Package-specific info:
ImageMagick program version
---------------------------
animate:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
compare:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
convert:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
composite:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 
https://imagemagick.org
conjure:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
display:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
identify:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
import:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
mogrify:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
montage:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
stream:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org

-- System Information:
Distributor ID:	Devuan
Description:	Devuan GNU/Linux 4 (chimaera)
Release:	4
Codename:	chimaera
Architecture: x86_64

Kernel: Linux 5.10.0-26-amd64 (SMP w/4 CPU threads)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_GB:en
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages imagemagick depends on:
ii  imagemagick-6.q16  8:6.9.11.60+dfsg-1.3+deb11u1

imagemagick recommends no packages.

imagemagick suggests no packages.

-- no debconf information

---

Acknowledgement sent to Martin Hodges <[email protected]>:
New bug report received and forwarded. Copy sent to [email protected], [email protected]. Full text available.

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Report forwarded to [email protected], [email protected], [email protected]:
bug#800; Package imagemagick. Full text available.

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