dotfiles

commit 07da1486e66f9847d47f82964000a92e0f7a3547
parent 33c257aa68932aeba01b93d33f401adbaf985e89
Author: Alex Balgavy <alex@balgavy.eu>
Date:   Mon,  3 May 2021 17:52:44 +0200

removebg: remove white background from images

Diffstat:
A
scripts/removebg
 | 
21
+++++++++++++++++++++

1 file changed, 21 insertions(+), 0 deletions(-)
diff --git a/scripts/removebg b/scripts/removebg
@@ -0,0 +1,21 @@
+#!/bin/sh
+die() {
+  echo "$1" >&2
+  exit 1
+}
+
+# Preliminary checks
+command -v convert >/dev/null 2>&1 || die "imagemagick not found."
+[ $# -ge 2 ] || die "Usage: $0 input.ext output.ext"
+[ -f "$1" ] || die "File $1 not found."
+[ -f "$2" ] && {
+  printf "File %s exists, overwrite? [y/N] " "$2"
+  read -r conf; case "$conf" in
+    Y*|y*) ;;
+    *) exit 0 ;;
+  esac
+}
+
+fuzz="${3:-15%}"
+convert -trim -transparent white -fuzz "$fuzz" "$1" "$2"
+printf "Saved as %s\nIf the result looks bad, pass a fuzz percentage as the last argument." "$2"