Legacy ImageMagick Discussions Archive

Thanks , it seems to be useful for my time-lapse camera, I would like to read this value after a snapshot to re-adjust my capture parameters.
What does the mean and deviation represent ? is there a definition somewhere.

Thanks

Hi,

I tried the indentify command (with the verbose) and would like to know how to interpret the output.
More precisely I would like to know from the statistic and the histogram values if I can identify properly if this picture is under-exposed or over-exposed ?

Thanks.

I tried both options above and they degrade the original picture. Part of it is better and part of it is degraded. I tried a few options (auto-level, equalize, auto-gamma, normalize) but none of them is perfect because I work under different light scenarios. Here is the original captured time-lapse ...

Thanks, I updated my version and now I'm at the proper level. Version: ImageMagick 6.8.9-9 Q16 i686 2015-01-06 http://www.imagemagick.org Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC Features: DPC Modules OpenMP Delegates: bzlib djvu fftw fontconfig freetype jbig jng jpeg lcms lqr ltdl ...

Sorry I'm not too familiar with Imagemagick, How do I check the version from bash in UbuntuStudio 15.04, since I have both installed ?

Here are my two samples https://drive.google.com/open?id=0B0u3vNc6qjsXbmpBWHYtM2kzM2s https://drive.google.com/open?id=0B0u3vNc6qjsXeFFCeUZaWVRSU2c I don't see the -auto-level as an option in convert or mogrify, but I need to normalize (I guess) the level from picture 50 to 120 for example. It this ...

Sorry I changed it.

Here is the context: I'm taking many pictures (with different shutter speed) every 5 min at night I use a shutter speed of 5 sec and here are two sample picture: https://drive.google.com/open?id=0B0u3vNc6qjsXbmpBWHYtM2kzM2s https://drive.google.com/open?id=0B0u3vNc6qjsXeFFCeUZaWVRSU2c note that I ...

Hi,

I'm new to this forum, but I would like to know how I can use image magick to improve an sequence of images taken at night with a time lapse camera (Rasberry PI) so I can improve the overall quality of the video.

Thanks for your help.
Lionel