Legacy ImageMagick Discussions Archive

@fmw42: The wbref.jpg image is intended to be an picture of a grey or white reference chart taken under the same illumination conditions, most importantly the same color temperature. It shouldn't matter whether it is white or grey, as long as it is pure, meaning that R, G and B values are the same ...

Hi, Here is my solution for a batch file for white balance correction on multiple files using as a reference a file called wbref.jpg (placed in the same folder) of a white or grey card (using the 50 x 50 pixels center of it) . (Win7/ImageMagick-6.8.0-Q16) Thanks for everybody's input, Robert @echo ...

Hi snibgo,
Thank you for your fast feedback.
I'm not in expert in batch file/IM syntax. Could you explain where I have to put this code exactly in my script posted before?

Thank you for this important information,

Can I also get this running somehow without giving the file size 400x300 ? I would like to use it on files with different sizes.

OK, I got it running. Thank you for your input. My final solution is the following in a batch file: @echo off if [%1]==[] goto :eof :loop convert %1 ( +clone ( wbref.jpg -gravity Center -crop "50x50+0+0" -scale "1x1" -negate ) +dither -interpolate Integer -clut ) -compose Overlay -composite %~n1_wb ...

Hi, I find this white balancing methods very useful and would like to use them . I tested the two methods decribed here (IM Version 6.8.0-Q16 under windows7) on the files given above mainky.jpg and reference.jpg and found out that I have to give a complete path for the reference file, otherwise I ...