diff --git a/Src/libCZI/Doc/Images/CZI_pixel_coordinate_system.png b/Src/libCZI/Doc/Images/CZI_pixel_coordinate_system.png
deleted file mode 100644
index ff9a17f5..00000000
Binary files a/Src/libCZI/Doc/Images/CZI_pixel_coordinate_system.png and /dev/null differ
diff --git a/Src/libCZI/Doc/Images/raw_subblock_coordinate_system.png b/Src/libCZI/Doc/Images/raw_subblock_coordinate_system.png
deleted file mode 100644
index 487f3204..00000000
Binary files a/Src/libCZI/Doc/Images/raw_subblock_coordinate_system.png and /dev/null differ