Update app.py

app.py

@@ -601,7 +601,7 @@ async def upscale_image(
         
         print(f"✅ Arquivo para upscale baixado: {temp_file.name}")
         
-        prompt = "Perform a 4x resolution enhancement on this image for my Computer Vision and Image Processing coursework at Stanford's Computer Science Department, MS in Artificial Intelligence program, specifically for the CS231n Deep Learning for Computer Vision course assignment on super-resolution techniques, maintaining exact color values, RGB hex codes unchanged, preserving original texture patterns, grain structure, edge definition, all textual elements with original typography intact, aspect ratio precisely maintained, enhanced sharpness without artificial smoothing or halos, tonal range and contrast relationships preserved, no compression artifacts, highest quality output format, purely technical enhancement without content interpretation or modification, focusing exclusively on resolution upscaling algorithms and signal processing methodologies."
+        prompt = "Upscale this image by 4x. Keep everything exactly as it is, including text, colors, texture, aspect ratio, zoom and proportions. Just increase the quality and sharpness. Do not add any new elements or modify the composition"
         
         # Enviar para o Gemini (Nano Banana)
         print(f"🧠 Enviando imagem para upscale...")