sh文生图，怎么这个代码到处都是问题？不是存储权限！一毛钱关系都没有

Question

#!/bin/bash

# 设置字体路径
font_path="/storage/emulated/0/字体/黑体.ttf"
# 设置保存图片的目录
image_directory="/storage/emulated/0/图片"

# 定义生成文本图片的函数
generate_text_images() {
  current_time=$(date +"%Y-%m-%d_%H:%M:%S")
  image_width=1920
  image_height=1080
  max_chars_per_line=30
  image_number=1

  mkdir -p "$image_directory"

  colors=("red" "green" "blue" "yellow" "orange")
  num_colors=${#colors[@]}

  cd "$image_directory" || exit

  while IFS= read -r line; do
    if [ ! -z "$line" ]; then
      truncated_text=$(echo "$line" | sed -E "s/(.{1,$max_chars_per_line}[。？！……；]+)\s*/\1\n/g")

      IFS=$'\n'
      for text_line in $truncated_text; do
        text_line=$(echo "$text_line" | sed -E "s/[。？！……；]+/\n/g")
        rand_index=$(($RANDOM % num_colors))
        bg_color=${colors[$rand_index]}
        text_color="white"

        text_length=${#text_line}
        scale_factor=$(bc <<< "scale=2;$image_width * 0.7 / ($text_length * 36)")

        convert -size "${image_width}x${image_height}" xc:black -font "$font_path" -pointsize "$(bc <<< "scale=0; 36 * $scale_factor")" -interword-spacing 10 -fill "$text_color" -gravity center -annotate 0 "$text_line" -extent "${image_width}x${image_height}" "${image_number}_文本_${bg_color}_${current_time}.jpg"

        echo "${image_number}.${text_line} ${bg_color}${current_time}"
        ((image_number++))
      done
    fi
  done
}

generate_text_images

# 打印
jk
convert: unable to open image '1_文本_blue_2024-05-17_12:42:31.jpg': Operation not permitted @ error/blob.c/OpenBlob/3596.
1.jk blue2024-05-17_12:42:31

我的代码没问题

#!/bin/bash

# 设置字体路径
font_path="/storage/emulated/0/字体/黑体.ttf"
# 设置保存图片的目录
image_directory="/storage/emulated/0/图片"

# 定义生成文本图片的函数
generate_text_images() {
  # 获取当前时间戳
  current_time=$(date +"%Y-%m-%d_%H:%M:%S")

  # 定义图片尺寸
  image_width=1920
  image_height=1080

  # 定义最大每行容纳字数
  max_chars_per_line=30

  # 设定图片编号
  image_number=1

  # 创建保存图片的目录
  mkdir -p "$image_directory"

  # 随机生成5种颜色背景与文字颜色
  colors=("red" "green" "blue" "yellow" "orange")
  num_colors=${#colors[@]}

  # 切换到图片目录下
  cd "$image_directory" || return

  # 遍历输入的文本行
  while IFS= read -r line; do
    if [[ ! -z "$line" ]]; then
      # 从标点符号处截断文本
      truncated_text=$(echo "$line" | sed -E "s/(.{1,$max_chars_per_line}[。？！……；]+)\s*/\1\n/g")

      # 按照换行符分割文本并处理每行文本
      IFS=$'\n'
      for text_line in $truncated_text; do
        # 替换标点符号为换行符
        text_line=$(echo "$text_line" | sed -E "s/[。？！……；]+/\n/g")

        # 随机选择背景颜色和文字颜色
        rand_index=$((RANDOM % num_colors))
        bg_color=${colors[$rand_index]}
        text_color="white"

        # 计算放大比例
        text_length=${#text_line}
        scale_factor=$(bc <<< "scale=2;$image_width * 0.7 / ($text_length * 36)")

        # 生成黑底白字图片
        convert -size "${image_width}x${image_height}" xc:black -font "$font_path" -pointsize "$(bc <<< "scale=0; 36 * $scale_factor")" -interword-spacing 10 -fill "$text_color" -gravity center -annotate 0 "$text_line" -extent "${image_width}x${image_height}" "${image_number}_文本_${bg_color}_${current_time}.jpg"

        echo "${image_number}.${text_line} ${bg_color}${current_time}"

        # 增加图片编号
        ((image_number++))
      done
    fi
  done
}

# 从标准输入读取多行文本，并调用生成文本图片的函数generate_text_images
generate_text_images

Answer 1

#!/bin/bash
# 设置字体路径
font_path="/storage/emulated/0/字体/黑体.ttf"
# 设置保存图片的目录
image_directory="/storage/emulated/0/图片"
# 定义生成文本图片的函数
generate_text_images() {
  # 获取当前时间戳
  current_time=$(date +"%Y-%m-%d_%H:%M:%S")
  # 定义图片尺寸
  image_width=1920
  image_height=1080
  # 定义最大每行容纳字数
  max_chars_per_line=30
  # 设定图片编号
  image_number=1
  # 创建保存图片的目录
  mkdir -p "$image_directory"
  # 随机生成5种颜色背景与文字颜色
  colors=("red" "green" "blue" "yellow" "orange")
  num_colors=${#colors[@]}
  # 切换到图片目录下
  cd "$image_directory" || return
  # 遍历输入的文本行
  while IFS= read -r line; do
    if [[ ! -z "$line" ]]; then
      # 从标点符号处截断文本
      truncated_text=$(echo "$line" | sed -E "s/(.{1,$max_chars_per_line}[。？！……；]+)\s*/\1\n/g")
      # 按照换行符分割文本并处理每行文本
      IFS=$'\n'
      for text_line in $truncated_text; do
        # 替换标点符号为换行符
        text_line=$(echo "$text_line" | sed -E "s/[。？！……；]+/\n/g")
        # 随机选择背景颜色和文字颜色
        rand_index=$((RANDOM % num_colors))
        bg_color=${colors[$rand_index]}
        text_color="white"
        # 计算放大比例
        text_length=${#text_line}
        scale_factor=$(bc <<< "scale=2;$image_width * 0.7 / ($text_length * 36)")
        # 生成黑底白字图片
        convert -size "${image_width}x${image_height}" xc:black -font "$font_path" -pointsize "$(bc <<< "scale=0; 36 * $scale_factor")" -interword-spacing 10 -fill "$text_color" -gravity center -annotate 0 "$text_line" -extent "${image_width}x${image_height}" "${image_number}_文本_${bg_color}_${current_time}.jpg"
        echo "${image_number}.${text_line} ${bg_color}${current_time}"
        # 增加图片编号
        ((image_number++))
      done
    fi
  done
}
# 从标准输入读取多行文本，并调用生成文本图片的函数generate_text_images
generate_text_images