@echo off

:: ?
setlocal

:: ?
pushd .

:: Jump to skip_functions
goto :skip_functions

:: function name makeThumbs
:makeThumb

:: Set the variable jpg to the first argument = \generated\
set jpg=%1

:: Remove the .jpg
set jpg=%jpg:~0,-4%

:: Add the path to the image in this case ” ..\Test_images\image.jpg ”
set jpg=..%DIRECTORY%%jpg%

:: I am not sure how to get a negative angle
set /a ANGLE=%random% %% 15 + 3

:: Set the IM code for watermarking the image into the variable ANNOTATE
set ANNOTATE=-gravity south -font Arial -pointsize 20 -fill black -annotate +0+20 “www.rubblewebs.co.uk” -fill white -annotate +2+22 “www.rubblewebs.co.uk”

:: Set the IM code for the poleroid modification into the variable POLOROID
set POLOROID=-bordercolor white -border 6 -bordercolor grey60 -border 1 -background none -rotate %ANGLE% -background black ( +clone -shadow 60×4+4+4 ) +swap -background white -flatten

:: Run tha Image magick code
convert %1 ( +clone -resize 600x -auto-orient %ANNOTATE% -compress JPEG -quality 70 -write %jpg%_full.jpg +delete ) -thumbnail 180x -auto-orient %POLOROID% -compress JPEG -quality 80 -sampling-factor 2×1 %jpg%_th.jpg

:: Goes to the end of the function ?
goto :EOF

:: Function to create the directory to save the modified images into
:skip_functions

:: Select the drive ?
f:

:: select the folder ?
cd %1\images

:: Create the new directory
md %1\generated

:: variable for use in the thumbs function
SET DIRECTORY=\generated\

:: Call thefunction makethumb for all the images in the folder – added the folder path
for /f %%i in (‘dir /b *.jpg’) do call :makeThumb %%i %DIRECTORY%

:: ?
popd

:: ?
endlocal

It works very well but I had to hard code an angle for now as I am unsure how to use perl – can you not generate a random number with the batch file ?
I am not a great fan of the poleroid operator and your code generates a nicer image.

A couple of comments:
1/ I am working on my F drive as I didn’t want to mess up anything on my C drive if it went wrong. I had to use: poleroid f:\Test_images If I didn’t add the f:\ to the path the images were saved in the same directory as the originals. and I had extra empty folders.
2/ If you used -thumbnail instead of -resize you would not need the -strip.
3/ Why didn’t you save the new images directly to the new folder rather than moving them later?
4/ As I know nothing about batch scripts I could have done with a few more comments in the code. I have guessed what most of it means but have no idea about things like ” setlocal” and “pushd .”.