init

examples/assets/upscale_to_8k_single.sh

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+#!/bin/zsh
+setopt null_glob
+
+# 从环境变量或参数获取配置
+INPUT_FILE="${INPUT_FILE:-$1}"
+OUTPUT_FILE="${OUTPUT_FILE:-$2}"
+MODELPATH="${MODELPATH:-./models}"
+MODELNAME="${MODELNAME:-ultramix-balanced-4x}"
+BIN_PATH="${BIN_PATH:-./bin/mac/upscayl-bin}"
+TARGET_WIDTH=4320
+TARGET_HEIGHT=7680
+FORMAT="jpg"
+THREADS="4:8:4"
+TARGET_SIZE=$((10 * 1024 * 1024)) # 10MB
+MAX_SIZE=$((20 * 1024 * 1024))   # 20MB
+
+# 检查输入参数
+if [ -z "$INPUT_FILE" ] || [ -z "$OUTPUT_FILE" ]; then
+  echo "错误: 需要指定输入和输出文件路径"
+  echo "用法: $0 <输入文件> <输出文件>"
+  echo "或者设置环境变量 INPUT_FILE 和 OUTPUT_FILE"
+  exit 1
+fi
+
+if [ ! -f "$INPUT_FILE" ]; then
+  echo "错误: 输入文件不存在: $INPUT_FILE"
+  exit 1
+fi
+
+echo "===== 开始处理单张图片 ====="
+echo "输入文件: $INPUT_FILE"
+echo "输出文件: $OUTPUT_FILE"
+echo "模型路径: $MODELPATH"
+echo "模型名称: $MODELNAME"
+echo "二进制文件: $BIN_PATH"
+
+# 确保输出目录存在
+output_dir=$(dirname "$OUTPUT_FILE")
+mkdir -p "$output_dir"
+
+base=$(basename "$INPUT_FILE")
+compress=10  # 0为无压缩，100为最大压缩
+try=1
+
+echo "\n==== 开始处理: $base ===="
+echo "输入文件: $INPUT_FILE"
+echo "输出文件: $OUTPUT_FILE"
+echo "模型: $MODELNAME, 模型路径: $MODELPATH"
+echo "格式: $FORMAT"
+
+# 获取原图宽高
+read orig_w orig_h <<< $(sips -g pixelWidth -g pixelHeight "$INPUT_FILE" 2>/dev/null | awk '/pixelWidth/ {w=$2} /pixelHeight/ {h=$2} END{print w,h}')
+if [ "$orig_w" -lt "$orig_h" ]; then
+  short=$orig_w
+  long=$orig_h
+else
+  short=$orig_h
+  long=$orig_w
+fi
+echo "DEBUG: orig_w=$orig_w, orig_h=$orig_h, short=$short, long=$long"
+
+scale1=$(echo "scale=8; 4320/$short" | bc)
+scale2=$(echo "scale=8; 7680/$long" | bc)
+echo "DEBUG: scale1=$scale1, scale2=$scale2"
+
+# 取scale1和scale2的最大值
+scale=$(echo "$scale1 > $scale2" | bc -l)
+if [ "$scale" -eq 1 ]; then
+  use_scale=$scale1
+else
+  use_scale=$scale2
+fi
+use_scale=$(printf "%f" "$use_scale")
+echo "DEBUG: use_scale=$use_scale"
+
+# 保证不缩小
+scale_cmp=$(echo "$use_scale > 1" | bc -l)
+echo "DEBUG: scale_cmp=$scale_cmp"
+if [ "$scale_cmp" -eq 1 ]; then
+  target_w=$(awk -v w="$orig_w" -v s="$use_scale" 'BEGIN{printf "%d", w*s+0.5}')
+  target_h=$(awk -v h="$orig_h" -v s="$use_scale" 'BEGIN{printf "%d", h*s+0.5}')
+  echo "原图分辨率: ${orig_w}x${orig_h}, 目标分辨率: ${target_w}x${target_h} (短边≥4320, 长边≥7680)"
+else
+  target_w=$orig_w
+  target_h=$orig_h
+  echo "原图分辨率: ${orig_w}x${orig_h}, 已满足短边≥4320且长边≥7680，无需放大"
+fi
+
+# 处理图片，循环调整压缩率直到满足大小要求
+while true; do
+  echo "尝试第 $try 次: compress=$compress"
+  upscale_cmd="\"$BIN_PATH\" -i \"$INPUT_FILE\" -o \"$OUTPUT_FILE\" -f $FORMAT -m \"$MODELPATH\" -n $MODELNAME -r \"${target_w}x${target_h}\" -c $compress -j $THREADS -v"
+  echo "执行命令: $upscale_cmd"
+  eval $upscale_cmd
+  
+  if [ ! -f "$OUTPUT_FILE" ]; then
+    echo "$base: 未生成图片，compress=$compress"
+    echo "处理失败"
+    exit 1
+  fi
+  
+  size=$(stat -f%z "$OUTPUT_FILE")
+  res=$(sips -g pixelWidth -g pixelHeight "$OUTPUT_FILE" 2>/dev/null | awk '/pixelWidth|pixelHeight/ {print $2}' | xargs | sed 's/ /x/')
+  echo "$base: compress=$compress, size=${size} bytes, 分辨率=${res}"
+  
+  if [ $size -le $MAX_SIZE ] || [ $compress -ge 100 ]; then
+    echo "$base: 满足大小要求，最终 compress=$compress"
+    break
+  fi
+  
+  # compress 每次递增10，最大不超过100
+  compress=$((compress + 10))
+  [ $compress -gt 100 ] && compress=100
+  try=$((try+1))
+  [ $try -gt 10 ] && echo "$base: 达到最大尝试次数，停止调整" && break
+done
+
+echo "\n===== 处理完成 ====="
+if [ -f "$OUTPUT_FILE" ]; then
+  input_size=$(stat -f%z "$INPUT_FILE")
+  output_size=$(stat -f%z "$OUTPUT_FILE")
+  input_res=$(sips -g pixelWidth -g pixelHeight "$INPUT_FILE" 2>/dev/null | awk '/pixelWidth|pixelHeight/ {print $2}' | xargs | sed 's/ /x/')
+  output_res=$(sips -g pixelWidth -g pixelHeight "$OUTPUT_FILE" 2>/dev/null | awk '/pixelWidth|pixelHeight/ {print $2}' | xargs | sed 's/ /x/')
+  
+  echo "输入: $(basename "$INPUT_FILE") - ${input_size} bytes, ${input_res}"
+  echo "输出: $(basename "$OUTPUT_FILE") - ${output_size} bytes, ${output_res}"
+  echo "处理成功完成！"
+else
+  echo "处理失败：未生成输出文件"
+  exit 1
+fi