Strange JPEGs (CMYK, for instance) to normal JPEGs

_cmykJpegToNormal.sh

trap '
  trap - INT # restore default INT handler
  kill -s INT "$$"
' INT

INPUT=StockByte
OUTPUT=StockByte_simple_jpeg

# It scans subfolders recursively, but...

shopt -s globstar
for f in \
$INPUT/*.jpg $INPUT/**/*.jpg \
$INPUT/*.JPG $INPUT/**/*.JPG \
$INPUT/*.jpeg $INPUT/**/*.jpeg \
$INPUT/*.JPEG $INPUT/**/*.JPEG
do
    if [ -f "$f" ]; then
        echo " Hi! $f"
        SIMPLENAME=$(basename "$f")
        
        # ...places all the files into the single directory.
        convert "$f" -colorspace sRGB "$OUTPUT/$SIMPLENAME"
    fi
done

cwebp_examples.txt

for F in StockByte_simple_jpeg/*; do cwebp -q 24 "$F" -o StockByte_webp_q24/$(basename "$F").webp ; done
for F in StockByte_simple_jpeg/*; do cwebp -lossless "$F" -o StockByte_webp_lossless/$(basename "$F").webp ; done