Legacy ImageMagick Discussions Archive

I have jpg files and want to create single red, green and blue gray shade images. Is this possible?

I'm not worried about the font issue (that appears to be an easy fix). Problem is I could not get the command to work at all. See error message at the top of the thread.
After a google search, I did find that updating policy.xml for label helped. I'm now able to make an image with just the ...

convert -version
Version: ImageMagick 6.7.8-9 2019-02-01 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2012 ImageMagick Studio LLC
Features: OpenMP

convert logo: logo.png
Worked fine.

Last command failed.

Note - I removed -font completely as to use the default font.

Not sure if ...

I pulled this exact command out of the ImageMagick doc and having no luck:

convert -background none -stroke black -fill white \
-font Candice -pointsize 48 label:'Sept ' \
\( +clone -background navy -shadow 80x3+3+3 \) \
-background none -compose DstOver -flatten base-t0.png

convert: not ...

I need to convert a png file to 3 separate uncompressed tiff files that contain the red,green or blue values. The tiff files have to be 8 bit. Suggestions?

I have 2 pngs. The first is a gray shade infrared satellite image. The second is a gray shade image representing the transparency of each individual pixel. Basically I want to make the colder clouds less transparent than the warmer clouds.

1) What should the gray shade values be set to in the ...