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Changing "-flatten" to "-alpha flatten" (without the double quotes) results in an error for me. > convert: UnrecognizedAlphaChannelOption `flatten' @ error/con
by ca7 5y ago
Changing "-flatten" to "-alpha flatten" (without the double quotes) results in an error for me.
> convert: UnrecognizedAlphaChannelOption `flatten' @ error/convert.c/ConvertImageCommand/673.
- mrb 5y agoProbably due to an older ImageMagick version. Try "-alpha remove" which should be more or less equivalent (I think)