ptouch autosplit and makemkv-key-grabber

almost_oneliners/ptouch-autosplit.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+
+# Default values
+INVERT=false
+
+# Help function
+usage() {
+    echo "Usage: $0 [-i] <tape_width_mm> <input_image.png>"
+    echo "Options:"
+    echo "  -i    Invert colors (Black -> White, White -> Black)"
+    echo "Example: $0 -i 12 sticker.png"
+    exit 1
+}
+
+# Parse options
+while getopts "i" opt; do
+  case $opt in
+    i) INVERT=true ;;
+    *) usage ;;
+  esac
+done
+shift $((OPTIND-1))
+
+# Check for remaining arguments
+if [ "$#" -ne 2 ]; then
+    usage
+fi
+
+TAPE_WIDTH=$1
+INPUT_FILE=$2
+
+# Map tape width (mm) to pixel height
+case $TAPE_WIDTH in
+    3.5) PIXELS=24 ;;
+    6)   PIXELS=32 ;;
+    9)   PIXELS=48 ;;
+    12)  PIXELS=64 ;;
+    18)  PIXELS=96 ;;
+    24)  PIXELS=128 ;;
+    36)  PIXELS=192 ;;
+    *)
+        echo "Error: Unsupported tape width ($TAPE_WIDTH mm)."
+        exit 1
+        ;;
+esac
+
+if [ ! -f "$INPUT_FILE" ]; then
+    echo "Error: File $INPUT_FILE not found."
+    exit 1
+fi
+
+FILENAME=$(basename -- "$INPUT_FILE")
+EXTENSION="${FILENAME##*.}"
+BASENAME="${FILENAME%.*}"
+
+# Prepare the magick command parts
+INVERT_CMD=""
+if [ "$INVERT" = true ]; then
+    INVERT_CMD="-negate"
+    echo "Color inversion: ENABLED"
+fi
+
+echo "Processing $INPUT_FILE for ${TAPE_WIDTH}mm tape (${PIXELS}px slices)..."
+
+# Execute ImageMagick
+magick "$INPUT_FILE" \
+    $INVERT_CMD \
+    -threshold 50% \
+    -type Bilevel \
+    -crop x${PIXELS} \
+    +repage \
+    "${BASENAME}_${TAPE_WIDTH}mm_%d.${EXTENSION}"
+
+echo "Done! Slices saved as: ${BASENAME}_${TAPE_WIDTH}mm_*.${EXTENSION}"