Legacy ImageMagick Discussions Archive

Yeah I was just sharing it as another way to deal with memory issues since it would dump after each sequence. My one concern with a moving average is that it is going to have a lot of rounding errors at 8000 16bit limited multiplications. Does Imagemagick carry that math out in 16bits or 64? There ...

32GB Ram, OSX High Sierra, ImageMagick 7.0.8-59 Q16 x86_64 I tried something like find . -type f -name "*.png" | xargs -n 100 sh -c 'convert "$0" "$@" -evaluate-sequence mean outdir/"$0" ' but it gave the following error convert: unable to open image 'outdir/./out0000001.png': No such file or ...

Hello All,
I'm trying to average a folder of 80000 16bit PNGS but running out of memory and harddrive space. The files are about 800GB. It also takes a million years. Is there a better way to do this with a running average or something? I'm on OSX

good catch, let's see, Robidoux writes it as the following in his variation, but I'll go with -define convolve:scale=100%^,100 first and let you know, 2GB Tiff takes a while even on an overclocked i7 4770k.. convolve:scale=100^,100% *edit, looks like % applies to both regardless of it's place, at ...

Hm, I converted it to bash, but something has gone awry and it gives me a super bright (all white basically image), I'm sure its something silly convert \ \( DK_8_0045-140__W.tif \ -define filter:c=0.1601886205085204 -filter Cubic -distort Resize 5669x8135\> \) \ \( -clone 0 -gamma 3 -define ...

Oh hey snibgo, I did look at your script, thanks for all that work. I found the linear space sizing to matter more with film scans that have more compressed shadows that lose more detail than the typically more open shadow of digital camera captures. I downloaded the bat but didn't know enough BAT ...

Yes I have, it's part of the confusion despite an imaging science minor, that's what I get for not knowing math and dealing in reproduction workflows *embarrassed*. So you suggest I go with the following for downsampling? convert in.tif -depth 16 -evaluate Pow 2.19921875 -filter LanczosRadius ...

Hello All, I know this issue in general has been discussed to death, but between the version changes and all, I cannot wrap my head around it. Can paypal you some beer change if you can help me understand a solution. I am going for image quality here, processing time is not a problem. First Question ...