Subimage search fails
Posted: 2019-01-08T15:58:13-07:00
small.png is a subimage of big.png
As you see compare throws error 'images too dissimilar' even though small.png is a subimage of big.png. Images are very simple and can be easily zoomed and compared manually in gimp for instance.
Images are very small in size 5x5 and 10x8 pixels. The same command works ok and finds subimages for many other similar images.
compare tool is the latest available on Jan 8.
Code: Select all
wget https://i.ibb.co/sCkgfsQ/big.png
wget https://i.ibb.co/XSDw7My/small.png
/usr/local/bin/compare -subimage-search -metric AE -similarity-threshold 1.0 big.png small.png null:
compare: images too dissimilar `/tmp/big.png' @ error/compare.c/CompareImageCommand/1170.Images are very small in size 5x5 and 10x8 pixels. The same command works ok and finds subimages for many other similar images.
compare tool is the latest available on Jan 8.
Code: Select all
/usr/local/bin/compare -version
Version: ImageMagick 6.9.10-24 Q16 x86_64 2019-01-08 https://imagemagick.org
Copyright: © 1999-2019 ImageMagick Studio LLC
License: https://imagemagick.org/script/license.php
Features: Cipher DPC OpenMP
Delegates (built-in): fontconfig freetype jng jpeg pangocairo png x zlib