1842蓝图风格氰版照片

Turn any image into a 1842 Blueprint with this prompt for Nano Banana pro 👇 DIRECTIVE: Transform the provided subject/scene into a highly realistic, vintage Cyanotype (Sun Print) photograph. The image must replicate the physical chemical process of iron-based exposure on paper. TECHNICAL AESTHETIC (THE CYANOTYPE PROCESS): Color Palette: STRICTLY use deep Prussian Blue, Indigo, and Cyan** for shadows and mid-tones. Use Brilliant White for high-exposure highlights. NO other colors (no sepia, no reds, no greys). Film Base: The underlying source is a grainy, high-contrast 35mm negative (simulating Kodak Tri-X). Physical Texture: The image must look like a physical object. Render the texture of **coarse, cold-press watercolor paper. Imperfections: Visible hand-applied emulsion brush strokes on the outer borders. Uneven coating density. Light leaks, dust specks, and deckled (rough) edges of the paper. LIGHTING & MOOD: High-contrast natural UV lighting simulation. Deep, crushing shadows in blue and blown-out white highlights to mimic the limited dynamic range of the historical cyanotype process. Dreamy, nostalgic, and raw. --no color, sepia, black and white, digital gloss, smooth gradient, warm tones, red, green, yellow, vector art. Would love to see your results in comments!