Refactor PDF handling and add new scripts. Removed specific PDF files from LFS tracking and replaced with a wildcard for all PDFs. Added a script to convert PDFs to PNGs and created new Jupyter notebooks for drawing and marker detection. Added new charuco PDF files for 410x410 markers.

.gitattributes

@@ -1,5 +1,2 @@
 *.parquet filter=lfs diff=lfs merge=lfs -text
-charuco_400x400_3x3_s130_m100_no_24.pdf filter=lfs diff=lfs merge=lfs -text
+*.pdf filter=lfs diff=lfs merge=lfs -text
-charuco_1189x841_10x7_s115_m90.pdf filter=lfs diff=lfs merge=lfs -text
-charuco_400x400_3x3_s130_m100_no_16.pdf filter=lfs diff=lfs merge=lfs -text
-charuco_400x400_3x3_s130_m100_no_20.pdf filter=lfs diff=lfs merge=lfs -text

cvt_all_pdfs.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# Set input folder
+INPUT_DIR="board"
+DPI=100  # Resolution in DPI
+
+# Iterate over all .pdf files in the folder
+for pdf in "$INPUT_DIR"/*.pdf; do
+    # Strip .pdf to get base name
+    base="${pdf%.pdf}"
+    # Convert to PNG
+    magick convert -density "$DPI" "$pdf" "${base}.png"
+    echo "Converted: $pdf → ${base}.png"
+done