Created
November 2, 2023 12:11
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Imagemagick Image Compare Script
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| #!/usr/bin/env bash | |
| # Usage: ./image-compare.sh "${URL_A}" "${URL_B}" | |
| # Example: ./image-compare.sh https://placekitten.com/g/200/300 https://placekitten.com/200/300 | |
| TMP_DIR=$(mktemp -d) | |
| IMG_A_URL="$1" | |
| IMG_A_FILENAME=$(echo "${IMG_A_URL}" | sed -E 's|^.*/([^/]+)(\?.*)?$|\1|') | |
| IMG_A_EXT=$(echo "${IMG_A_FILENAME}" | sed -E 's|^.*\.(.+)|\1|') | |
| IMG_B_URL="$2" | |
| IMG_B_FILENAME=$(echo "${IMG_B_URL}" | sed -E 's|^.*/([^/]+)(\?.*)?$|\1|') | |
| IMG_B_EXT=$(echo "${IMG_B_FILENAME}" | sed -E 's|^.*\.(.+)|\1|') | |
| curl -s "${IMG_A_URL}" -o "${TMP_DIR}/a.${IMG_A_EXT}" | |
| curl -s "${IMG_B_URL}" -o "${TMP_DIR}/b.${IMG_B_EXT}" | |
| magick compare \ | |
| -metric AE -fuzz 5% \ | |
| -compose src \ | |
| "${TMP_DIR}/a.${IMG_A_EXT}" "${TMP_DIR}/b.${IMG_B_EXT}" "${TMP_DIR}/compare.png" | |
| cat << EOF > "${TMP_DIR}/diff.html" | |
| <!doctype html> | |
| <html lang=en> | |
| <head> | |
| <meta charset=utf-8> | |
| <title>${IMG_A_FILENAME} vs ${IMG_B_FILENAME}</title> | |
| </head> | |
| <body> | |
| <img src="a.${IMG_A_EXT}"> | |
| <img src="b.${IMG_B_EXT}"> | |
| <img src="compare.png"> | |
| </body> | |
| </html> | |
| EOF | |
| open "${TMP_DIR}/diff.html" |
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