Possible composite bug [solved]
Posted: 2015-09-14T07:07:29-07:00
Hello,
I need to watermark some grayscale images with composite utility. I am using following command:
Problem is that created output image is brighter and maybe more contrast than original. Images just does not look same. With color (RGB) images is everything ok, only grayscales are the problem. My sample images are here:
watermark.png - https://www.dropbox.com/s/xo5lxzbua6e7t ... k.png?dl=0
butterfly.jpg - https://www.dropbox.com/s/2zj6n5tg7ou6h ... y.jpg?dl=0
output.jpg - https://www.dropbox.com/s/v16im3ld79xcd ... t.jpg?dl=0
Information about my system:
Is there something wrong with my command, or this is bug? Thanks in advance.
I need to watermark some grayscale images with composite utility. I am using following command:
Code: Select all
composite -compose atop -gravity SouthEast watermark.png butterfly.jpg output.jpgProblem is that created output image is brighter and maybe more contrast than original. Images just does not look same. With color (RGB) images is everything ok, only grayscales are the problem. My sample images are here:
watermark.png - https://www.dropbox.com/s/xo5lxzbua6e7t ... k.png?dl=0
butterfly.jpg - https://www.dropbox.com/s/2zj6n5tg7ou6h ... y.jpg?dl=0
output.jpg - https://www.dropbox.com/s/v16im3ld79xcd ... t.jpg?dl=0
Information about my system:
Code: Select all
firzen@phoenix:~$ composite --version
Version: ImageMagick 6.7.7-10 2014-03-08 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2012 ImageMagick Studio LLC
Features: OpenMP
firzen@phoenix:~$ uname -r
3.16.0-4-686-pae
firzen@phoenix:~$ arch
i686
firzen@phoenix:~$ lsb_release -a | grep Desc
Description: Debian GNU/Linux 7.7 (wheezy)