XnView 2.42 with HEIF-Plugin : HEIF-file could not be opened

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foxyshadis
Posts: 374
Joined: Sat Nov 18, 2006 8:57 am

Re: XN-View 2.42 with HEIF-Plugin: HEIF-file could not be opened

Post by foxyshadis » Tue Mar 06, 2018 8:41 am

Are there still any HEIF problems? The full HEIF spec was posted to http://standards.iso.org/ittf/PubliclyA ... 2_2017.zip recently, so any implementation can be compared against it.

FWIW: ImageMagick has an implementation based on libde265 now, another point to test against to see where the problem might be.

MelAriston
Posts: 1
Joined: Mon May 21, 2018 5:43 am

Re: XN-View 2.42 with HEIF-Plugin: HEIF-file could not be opened

Post by MelAriston » Mon May 21, 2018 5:56 am

FWIW: ImageMagick has an implementation based on libde265 now, another point to test against to see where the problem might be.
It seems that ImageMagick has quality issue with HEIC to JPEG conversion. Images has a lot of artifacts, you can check it with recent version of imagemagic or with site https://heic2jpeg.com/

I've tested with

# convert --version
Version: ImageMagick 7.0.7-33 Q16 x86_64 2018-05-18 https://www.imagemagick.org
Copyright: © 1999-2018 ImageMagick Studio LLC
License: https://www.imagemagick.org/script/license.php
Features: Cipher DPC HDRI Modules
Delegates (built-in): bzlib freetype heic jng jpeg ltdl lzma png tiff xml zlib

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