image-magic: automatically adding the filenames of the stacking images - imagemagick

Question

My bash script uses convert and montage of the Image magic to stack 2xN multi-image chart.
Convert:
convert \( "${output}/type1*.png" -append \) \( "${output}/type2*.png" -append \) +append -background white -alpha deactivate ${output}/summary.png
Montage:
montage \( "${output}/type1*.png" \) \( "${output}/type2*.png" \) -geometry 800x600+1+1 -tile x2 -frame 4 -background white -mattecolor lightgoldenrod2 -mode Frame -bordercolor white ${output}/summary.png
Would it be possible via some option to automatically add the name of the stacked images directly on each initial png file?

Answer 1

Of course. I made 4 randomly coloured input images, each 100x100 like this:
magick -size 2x2 xc: +noise random -crop 1x1 -scale 100x100 +repage type-%02d.png
They are named like this:
-rw-r--r--# 1 mark staff 595 11 Oct 10:35 type-00.png
-rw-r--r--# 1 mark staff 594 11 Oct 10:35 type-01.png
-rw-r--r--# 1 mark staff 595 11 Oct 10:35 type-02.png
-rw-r--r--# 1 mark staff 595 11 Oct 10:35 type-03.png
The basic technique you need is to:
iterate over the input images
add a label to each one
aggregate and pipe all the resulting individual images into montage
#!/bin/bash
for f in type-*png; do
magick "$f" -gravity South -fill black -background Plum -font "/System/Library/Fonts/Supplemental/Comic Sans MS Bold.ttf" -splice 0x18 -annotate +0+2 "$f" miff:-
done | magick montage -geometry +1+1 -tile x2 miff:- montage.png
Here's another example, but with an under-colour underneath the text and the text directly on the image and a transparent background to the montaged output:
#!/bin/bash
for f in type-*png; do
magick "$f" -fill white -undercolor '#00000080' -gravity South -annotate +0+5 "$f" miff:-
done | magick montage -background none -geometry +1+1 -tile x2 miff:- montage.png
Obviously you can diddle around with the colours, fonts, positioning as you wish, but the core technique remains the same.
Note: MIFF: is just "Magick Image File Format", a format specific to ImageMagick that is guaranteed to maintain and pass on all aspects of its input - from bit-depth, through comments, through quality, through transparency down to EXIF data and beyond.
Note: The annotation methods I have used are derived from the excellent work by Anthony Thyssen linked here and there are many, many other examples - well worth a read.

Answer 2

Here is a simple way to do that in Imagemagick.
Lets create images as in Mark Setchell's answer:
convert -size 2x2 xc: +noise random -crop 1x1 -scale 100x100 +repage type-%02d.png
Now we use the -label option in montage:
(use %t if you do not want the suffix and %f if you do want the suffix on the file name)
montage -label "%t" *.png -tile 2x2 -geometry +5+5 result.png
Or
montage -label "%t" *.png -tile 2x2 -geometry +5+5 result2.png