ImageMagick convert for循环

Question

我想在一个文件目录中迭代这段代码：

convert Film_Crew.jpg -resize 1920x1080 -size 1920x1080 xc:black +swap -gravity center -composite Film_Crew_resize.jpg

我的目录中的图像：

Film_Crew.jpg

Film_Crew copy.jpg

Film_Crew copy 2.jpg

Film_Crew副本3.jpg

Film_Crew copy 4.jpg

Film_Crew copy 5.jpg

Film_Crew copy 6.jpg

我尝试使用这段代码，因为我上次尝试时它对我有效，但现在它不起作用。

for i in *.*; do convert $i -auto-orient -resize 1920x1080 -size 1920x1080 xc:black +swap -gravity center -composite "new/${i%.*}.jpg";done

我在终端的Mac上工作。我得到的错误是：

convert:无法打开图像错误‘@Film_Crew': No such file or directory @ error/blob.c/OpenBlob/2701. convert: no decode delegate for this image format/builte.c/ReadImage/504.convert:无法打开图像错误‘@copy': No such file or directory @ error/blob.c/OpenBlob/2701. convert: no decode delegate for this image format/builte.c/ReadImage/504.convert:无法打开图像错误黑色‘@2.jpg': No such file or directory @ error/blob.c/OpenBlob/2701. convert: no such image/mogrify.c/MogrifyImageList/8770.convert:无图像定义错误胶片_Crew‘：没有这样的文件或目录@new/Film_Crew copy 2.jpg' @ error/convert.c/ConvertImageCommand/3258. convert: unable to open image/blob.c/OpenBlob/2701。convert: no decode delegate for this image format ' @ error/constitute.c/ReadImage/504. convert: unable to open imagecopy'：没有这样的文件或目录@ error/blob.c/OpenBlob/2701。convert:此图像格式' @ error/constitute.c/ReadImage/504. convert: unable to open image3.jpg没有解码委托:没有这样的文件或目录@ error/blob.c/OpenBlob/2701。convert:没有这样的图像错误/black' @ error/mogrify.c/MogrifyImageList/8770. convert: no images defined_Crew copy 3.jpg‘@ error/convert.c/ConvertImageCommand/3258.convert:无法打开图像错误‘@Film_Crew': No such file or directory @ error/blob.c/OpenBlob/2701. convert: no decode delegate for this image format/builte.c/ReadImage/504.convert:无法打开图像错误‘@copy': No such file or directory @ error/blob.c/OpenBlob/2701. convert: no decode delegate for this image format/builte.c/ReadImage/504.convert:无法打开图像错误黑色‘@4.jpg': No such file or directory @ error/blob.c/OpenBlob/2701. convert: no such image/mogrify.c/MogrifyImageList/8770.convert:无图像定义错误胶片_Crew‘：没有这样的文件或目录@new/Film_Crew copy 4.jpg' @ error/convert.c/ConvertImageCommand/3258. convert: unable to open image/blob.c/OpenBlob/2701。convert: no decode delegate for this image format ' @ error/constitute.c/ReadImage/504. convert: unable to open imagecopy'：没有这样的文件或目录@ error/blob.c/OpenBlob/2701。convert:此图像格式' @ error/constitute.c/ReadImage/504. convert: unable to open image5.jpg没有解码委托:没有这样的文件或目录@ error/blob.c/OpenBlob/2701。convert:没有这样的图像错误/black' @ error/mogrify.c/MogrifyImageList/8770. convert: no images defined_Crew copy 5.jpg‘@ error/convert.c/ConvertImageCommand/3258.convert:无法打开图像错误‘@Film_Crew': No such file or directory @ error/blob.c/OpenBlob/2701. convert: no decode delegate for this image format/builte.c/ReadImage/504.convert:无法打开图像错误‘@copy': No such file or directory @ error/blob.c/OpenBlob/2701. convert: no decode delegate for this image format/builte.c/ReadImage/504.convert:无法打开图像错误黑色‘@6.jpg': No such file or directory @ error/blob.c/OpenBlob/2701. convert: no such image/mogrify.c/MogrifyImageList/8770.convert:无图像定义错误胶片_Crew‘：没有这样的文件或目录@new/Film_Crew copy 6.jpg' @ error/convert.c/ConvertImageCommand/3258. convert: unable to open image/blob.c/OpenBlob/2701。convert:此图像格式没有解码委托' @ error/constitute.c/ReadImage/504. convert: unable to open imagecopy.jpg'：没有这样的文件或目录@ error/blob.c/OpenBlob/2701。convert:没有这样的图像错误/black' @ error/mogrify.c/MogrifyImageList/8770. convert: no images defined_Crew copy.jpg‘@ error/convert.c/ConvertImageCommand/3258.convert:无法打开图像``new/FileCrew.jpg‘：没有这样的文件或目录@ error/blob.c/OpenBlob/2701。

Answer 1

有了mogrify，生活会更轻松-没有for循环，没有引用：

mkdir new
mogrify -path new -resize 1920x1080 -background black -gravity center -extent 1920x1080 *jpg

Answer 2

假设你所有的输入图像都是JPG，尝试使用ImageMagick。我将Internal Field Specifier设置为新行，以便文件名中的空格被视为名称的一部分。

cd
cd path2/your_image_directory
OLDIFS=$IFS
IFS=$'\n'
list=`ls *.jpg`
for img in $list; do 
convert \( "$img" -auto-orient -resize 1920x1080 \) \( -size 1920x1080 xc:black \) +swap -gravity center -composite "./new/${img%.*}.jpg"
done
IFS=$OLDIFS