Fix #4 saving in grayscale

This commit is contained in:
Aroy-Art 2025-01-07 13:10:20 +01:00
parent b64a47abe6
commit ff0c30c952
Signed by: Aroy
GPG key ID: 583642324A1D2070

View file

@ -7,8 +7,8 @@ tile_width="$3" # Width of each tile
tile_height="$4" # Height of each tile
# Get the dimensions of the input image
image_width=$(identify -format "%w" "$input_image")
image_height=$(identify -format "%h" "$input_image")
image_width=$(magick identify -format "%w" "$input_image")
image_height=$(magick identify -format "%h" "$input_image")
# Calculate the number of tiles in both directions
tiles_across=$((image_width / tile_width))
@ -18,8 +18,8 @@ tiles_down=$((image_height / tile_height))
new_width=$((tiles_across * (tile_width + 1) - 1))
new_height=$((tiles_down * (tile_height + 1) - 1))
# Create a blank canvas with a transparent background
convert -size "${new_width}x${new_height}" xc:none blank_canvas.png
# Create a blank canvas with a transparent background and enforce the correct color space
magick -size "${new_width}x${new_height}" xc:none -colorspace sRGB blank_canvas.png
# Iterate through each tile in the tilemap
for ((y = 0; y < tiles_down; y++)); do
@ -27,17 +27,21 @@ for ((y = 0; y < tiles_down; y++)); do
# Extract the tile from the original image
tile_x=$((x * tile_width))
tile_y=$((y * tile_height))
convert "$input_image" -crop "${tile_width}x${tile_height}+$tile_x+$tile_y" "tile_${x}_${y}.png"
# Crop the tile while preserving the color space
magick "$input_image" -crop "${tile_width}x${tile_height}+$tile_x+$tile_y" -colorspace sRGB "tile_${x}_${y}.png"
# Place the tile on the new image, accounting for the 1-pixel padding
new_tile_x=$((x * (tile_width + 1)))
new_tile_y=$((y * (tile_height + 1)))
composite -geometry "+${new_tile_x}+${new_tile_y}" "tile_${x}_${y}.png" blank_canvas.png blank_canvas.png
# Composite the tile onto the new canvas, ensuring color space is preserved
magick composite -geometry "+${new_tile_x}+${new_tile_y}" "tile_${x}_${y}.png" -colorspace sRGB blank_canvas.png blank_canvas.png
done
done
# Save the final image
mv blank_canvas.png "$output_image"
# Save the final image while preserving the color space and transparency
magick blank_canvas.png -colorspace sRGB "$output_image"
# Clean up temporary tiles
rm tile_*.png