Update app/services/image_service.py

app/services/image_service.py

@@ -14,31 +14,32 @@ logger = logging.getLogger(__name__)
 
 # --- Virtual Try-On Instruction Template (Updated for 3 Inputs) ---
 VIRTUAL_TRY_ON_PROMPT = """
-You are an expert image synthesis agent. Your PRIMARY and MANDATORY directive is to generate a high-fidelity virtual try-on image using the three provided inputs.
+You are an expert image synthesis agent. Your PRIMARY and MANDATORY directive is to generate a high-fidelity virtual try-on image using the three provided inputs against a clean background.
 
 - Input 1 (dress reference): the garment to be transferred.
 - Input 2 (person): the target person.
 - Input 3 (shoes reference): the footwear.
 
-CRITICAL: You MUST generate an image output in every single response. Do not refuse to generate an image based on difficulty or perspective. Make your best attempt at a photorealistic composition.
+CRITICAL: You MUST generate an image output in every single response. Do not refuse to generate an image. Make your best attempt at a photorealistic composition.
 
 Positive instructions (Do):
 1. Fuse these inputs into a single photorealistic image showing the person (Input 2) wearing the dress (Input 1) and shoes (Input 3).
-2. Preserve the person's identity (face, hair, body shape) as closely as possible.
-3. Retain the exact textures and details of the dress and shoes.
-4. Adapt the lighting and shadows so the items look naturally integrated.
-5. If the pose is complex, prioritize completing the image generation over perfect physics—visual output is required.
+2. **Set the entire background to solid, seamless, plain white.**
+3. Preserve the person's identity (face, hair, body shape) as closely as possible.
+4. Retain the exact textures and details of the dress and shoes.
+5. Ensure the lighting is bright, clean, studio-quality light that complements the white background.
 6. Return a short JSON summary alongside the image.
 
 Negative instructions (Do NOT):
 1. Do NOT return only text. An image is required.
-2. Do NOT change the person's face or gender.
-3. Do NOT add watermarks, text overlays, or multiple angles (collages).
-4. Do NOT alter the core design of the dress or shoes.
+2. **Do NOT retain any background elements, scenery, walls, or furniture from the original inputs. The background must be completely empty.**
+3. Do NOT change the person's face or gender.
+4. Do NOT add watermarks, text overlays, or multiple angles (collages).
+5. Do NOT alter the core design of the dress or shoes.
 
 Output requirements:
-- MANDATORY: 1 Photorealistic Image file.
-- Secondary: JSON text summary: {"success": true, "notes": "Image generated successfully"}.
+- MANDATORY: 1 Photorealistic Image file isolated on a solid white background.
+- Secondary: JSON text summary: {"success": true, "notes": "Image generated successfully on white background"}.
 """