Legacy ImageMagick Discussions Archive

Hello all and thank you for your time and consideration.

OS: Windows 10
Version: ImageMagick 7.0.6-9 Q16 x64 2017-08-21 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC

My goal is to take a folder of PNG images, remove three colors from the background and leave transparent. Ideally I would like them saved to a new folder.

Starting Image: https://drive.google.com/open?id=0B0xHg ... jJuMzdEU3c
Desired Image: https://drive.google.com/open?id=0B0xHg ... jZHdVQtQkk

After searching through forums, tutorials, IM website, examples and the reference index I have come up with this:

C:\Users\pqdyp\Desktop\Landscapecopy>FOR %G IN (*.png) DO Magick "%G -alpha set -transparent #00FFFF -transparent #FF00FF -transparent #FF96FF Batch\%G

Resulting Error: Invalid argument or not enough arguments

It does scroll through all .png files in folder so the first part seems right. I have toyed around with it and yielded different errors. I suspect that I am not saving the output images correctly. I have tried including the full path to desired folder:

C:\Users\pqdyp\Desktop\Batch\%G

I have tried interchanging "magick" with "convert" the later leads to a list of operations usable by Image Magick being displayed.

what am I missing to make this work?

Thank you

You have a single lonely quote. Quotes usually go in pairs.

Thank you for your reply snibgo,

Ah yes, a byproduct of my tinkering. By removing the lonely quote I am left with the error:

Magick: unable to open image 'Batch\AVLrf110.png': No such file or directory @ error/blob.c/OpenBlob/3109.
Magick: WriteBlob Failed `Batch\AVLrf110.png' @ error/png.c/MagickPNGErrorHandler/1711.

This is what led me to believe that I am not saving the files correctly. I love the learning process but I just can't seem to figure this out.

Does the directory "Batch" exist?

Yes but as you say that, perhaps it needs to be located in the same directory as the images as I have started everything there.
When I return home I will try that.
Again thank you for your help.

If the directory "Batch" doesn't exist as a subdirectory of where you are running the command, it won't work. Create the directory first.

Thank you so much snibgo!

Once I moved the batch folder into the same folder as the images it worked perfectly.
600+ images edited in seconds! Simply marvelous!

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