如何在convert命令中添加if-else控制？

Question

我在

ImageMagick 7.0.10-61/Cygwin

中有一个脚本，如下所示，它从主图像中裁剪一些区域并以定义的方式合并。

for ((i=0; i<$num; i++)); do
    val=300
    
    if [[ $val -gt 300 ]]; then 
        convert "$input_image" +repage -write mpr:img -delete 0--1 -background none \
                \( \( -size 1600x120! xc:"#00377B" -fill white -font Calibri-Bold -pointsize 90 -gravity center -annotate +0+0 "${coords[0]}" \) \) \
                \( \
                    \( -size 426x50 xc:"#4FA7FF" -fill black -font Calibri-Bold -pointsize 42 -gravity center -annotate +0+0 "TITLE A"  \) \
                    \( -size 426x50 xc:"#4FA7FF" -fill black -font Calibri-Bold -pointsize 42 -gravity center -annotate +0+0 "TITLE B"   \) \
                    +smush +440 \
                \) \
                -smush +60 +gravity \
                \( \
                    \( -size 898x437! mpr:img -crop "${coords[1]}" +repage \( -size 70x50 xc:white \) -geometry +851+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
                    \( -size 898x437! mpr:img -crop "${coords[2]}" +repage \( -size 70x50 xc:white \) -geometry +851+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
                    +smush +12 -resize 1780x441! 
                \) \
                -gravity center -smush +10  \
                output_image$i.png
    else
        convert "$input_image" +repage -write mpr:img -delete 0--1 -background none \
                \( \( -size 1600x120! xc:"#00377B" -fill white -font Calibri-Bold -pointsize 90 -gravity center -annotate +0+0 "${coords[0]}" \) \) \
                \( \
                    \( -size 426x50 xc:"#4FA7FF" -fill black -font Calibri-Bold -pointsize 42 -gravity center -annotate +0+0 "TITLE A"  \) \
                    \( -size 426x50 xc:"#4FA7FF" -fill black -font Calibri-Bold -pointsize 42 -gravity center -annotate +0+0 "TITLE B"   \) \
                    +smush +440 \
                \) \
                -smush +60 +gravity \
                \( \
                    \( -size 898x437! mpr:img -crop "${coords[1]}" +repage \( -size 30x40 xc:white \) -geometry +840+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
                    \( -size 898x437! mpr:img -crop "${coords[2]}" +repage \( -size 30x40 xc:white \) -geometry +840+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
                    +smush +12 -resize 1780x441! 
                \) \
                -gravity center -smush +10  \
                output_image$i.png   
    fi
done

if

和

else

里面的脚本除了这个块之外都是一样的

\( \
    \( -size 898x437! mpr:img -crop "${coords[1]}" +repage \( -size 70x50 xc:white \) -geometry +851+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
    \( -size 898x437! mpr:img -crop "${coords[2]}" +repage \( -size 70x50 xc:white \) -geometry +851+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
    +smush +12 -resize 1780x441! 
\) \

if

$val > 300

然后进行复合

\( -size 70x50 xc:white \) -geometry +851+0

否则可以制作这个复合材料

\( -size 30x40 xc:white \) -geometry +840+0

有没有办法在转换命令中包含

if-else

控件以简化脚本？像这样的东西（下面的尝试不起作用）：

for ((i=0; i<$num; i++)); do
    val=300
    
        convert "$input_image" +repage -write mpr:img -delete 0--1 -background none \
                \( \( -size 1600x120! xc:"#00377B" -fill white -font Calibri-Bold -pointsize 90 -gravity center -annotate +0+0 "${coords[0]}" \) \) \
                \( \
                    \( -size 426x50 xc:"#4FA7FF" -fill black -font Calibri-Bold -pointsize 42 -gravity center -annotate +0+0 "TITLE A"  \) \
                    \( -size 426x50 xc:"#4FA7FF" -fill black -font Calibri-Bold -pointsize 42 -gravity center -annotate +0+0 "TITLE B"   \) \
                    +smush +440 \
                \) \
                -smush +60 +gravity \
                if [[ $val -gt 300 ]]; then  # BEGIN OF IF BLOCK
                    \( \
                        \( -size 898x437! mpr:img -crop "${coords[1]}" +repage \( -size 70x50 xc:white \) -geometry +851+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
                        \( -size 898x437! mpr:img -crop "${coords[2]}" +repage \( -size 70x50 xc:white \) -geometry +851+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
                        +smush +12 -resize 1780x441! 
                    \) \
                else   # ELSE BLOCK
                    \( \
                        \( -size 898x437! mpr:img -crop "${coords[1]}" +repage \( -size 30x40 xc:white \) -geometry +840+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
                        \( -size 898x437! mpr:img -crop "${coords[2]}" +repage \( -size 30x40 xc:white \) -geometry +840+0 -composite -bordercolor "#4B8DF8" -border 2x2 \) \
                        +smush +12 -resize 1780x441! 
                    \) \                
                fi
                -gravity center -smush +10  \
                output_image$i.png
    else
    fi
done

Answer 1

如果您将转换命令动态构造为字符串，然后像这样稍后将其传入，会怎么样：

for ((i=0; i<$num; i++)); do
    val=300
    
    # Conditional part of the command
    if [[ $val -gt 300 ]]; then
        conditional_part="\
            \( -size 898x437! mpr:img -crop \"${coords[1]}\" +repage \( -size 70x50 xc:white \) -geometry +851+0 -composite -bordercolor \"#4B8DF8\" -border 2x2 \) \
            \( -size 898x437! mpr:img -crop \"${coords[2]}\" +repage \( -size 70x50 xc:white \) -geometry +851+0 -composite -bordercolor \"#4B8DF8\" -border 2x2 \) \
            +smush +12 -resize 1780x441! \
        "
    else
        conditional_part="\
            \( -size 898x437! mpr:img -crop \"${coords[1]}\" +repage \( -size 30x40 xc:white \) -geometry +840+0 -composite -bordercolor \"#4B8DF8\" -border 2x2 \) \
            \( -size 898x437! mpr:img -crop \"${coords[2]}\" +repage \( -size 30x40 xc:white \) -geometry +840+0 -composite -bordercolor \"#4B8DF8\" -border 2x2 \) \
            +smush +12 -resize 1780x441! \
        "
    fi

    # Full command with the conditional part included
    convert "$input_image" +repage -write mpr:img -delete 0--1 -background none \
            \( \( -size 1600x120! xc:"#00377B" -fill white -font Calibri-Bold -pointsize 90 -gravity center -annotate +0+0 "${coords[0]}" \) \) \
            \( \
                \( -size 426x50 xc:"#4FA7FF" -fill black -font Calibri-Bold -pointsize 42 -gravity center -annotate +0+0 "TITLE A"  \) \
                \( -size 426x50 xc:"#4FA7FF" -fill black -font Calibri-Bold -pointsize 42 -gravity center -annotate +0+0 "TITLE B"   \) \
                +smush +440 \
            \) \
            -smush +60 +gravity \
            $conditional_part \
            -gravity center -smush +10  \
            "output_image$i.png"
done