Dev/add i2i bash (#623)

Signed-off-by: tzhouam <tzhouam@connect.ust.hk>
Signed-off-by: Zhou Taichang <tzhouam@connect.ust.hk>

examples/online_serving/image_to_image/run_curl_image_edit.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+# Qwen-Image image-edit (image-to-image) curl example
+
+set -euo pipefail
+
+if [[ $# -lt 2 ]]; then
+  echo "Usage: $0 <input_image> \"<edit_prompt>\" [output_file]" >&2
+  exit 1
+fi
+
+INPUT_IMG=$1
+PROMPT=$2
+SERVER="${SERVER:-http://localhost:8092}"
+CURRENT_TIME=$(date +%Y%m%d%H%M%S)
+OUTPUT="${3:-image_edit_${CURRENT_TIME}.png}"
+
+if [[ ! -f "$INPUT_IMG" ]]; then
+  echo "Input image not found: $INPUT_IMG" >&2
+  exit 1
+fi
+
+IMG_B64=$(base64 -w0 "$INPUT_IMG")
+
+REQUEST_JSON=$(
+  jq -n --arg prompt "$PROMPT" --arg img "$IMG_B64" '{
+    messages: [{
+      role: "user",
+      content: [
+        {"type": "text", "text": $prompt},
+        {"type": "image_url", "image_url": {"url": ("data:image/png;base64," + $img)}}
+      ]
+    }],
+    extra_body: {
+      height: 1024,
+      width: 1024,
+      num_inference_steps: 50,
+      guidance_scale: 1,
+      seed: 42
+    }
+  }'
+)
+
+echo "Generating edited image..."
+echo "Server: $SERVER"
+echo "Prompt: $PROMPT"
+echo "Input : $INPUT_IMG"
+echo "Output: $OUTPUT"
+
+curl -s "$SERVER/v1/chat/completions" \
+  -H "Content-Type: application/json" \
+  -d "$REQUEST_JSON" \
+  | jq -r '.choices[0].message.content[0].image_url.url' \
+  | cut -d',' -f2 \
+  | base64 -d > "$OUTPUT"
+
+if [[ -f "$OUTPUT" ]]; then
+  echo "Image saved to: $OUTPUT"
+  echo "Size: $(du -h "$OUTPUT" | cut -f1)"
+else
+  echo "Failed to generate image"
+  exit 1
+fi