Initial commit

Texture.py

@@ -0,0 +1,41 @@
+# SharpnessPro/Texture.py
+import torch
+from .utils import ensure_tensor_bchw, to_bhwc, clamp01, gaussian_blur, rgb_to_luma
+
+class TextureNode:
+    @classmethod
+    def INPUT_TYPES(s):
+        return {
+            "required": {
+                "image": ("IMAGE",),
+                "radius": ("FLOAT", {"default": 2.0, "min": 0.3, "max": 10.0, "step": 0.1}),
+                "strength": ("FLOAT", {"default": 0.4, "min": -1.0, "max": 1.0, "step": 0.01}),
+                "luma_only": (["Yes","No"],),
+            }
+        }
+
+    RETURN_TYPES = ("IMAGE",)
+    FUNCTION = "apply"
+    CATEGORY = "SharpnessPro/Tone"
+
+    def apply(self, image, radius, strength, luma_only):
+        x = ensure_tensor_bchw(image).to(torch.float32)
+        # Micro-contrast = high frequency boost with small radius, symmetric, gentle
+        low = gaussian_blur(x, radius=radius)
+        hf = x - low  # high frequencies
+
+        if luma_only == "Yes":
+            L = rgb_to_luma(x)
+            L_low = rgb_to_luma(low)
+            dL = L - L_low
+            L_out = (L + strength * dL).clamp(0,1)
+            eps = 1e-6
+            scale = (L_out + eps) / (L + eps)
+            out = clamp01(x * scale)
+        else:
+            out = clamp01(x + strength * hf)
+
+        return (to_bhwc(out),)
+
+NODE_CLASS_MAPPINGS = {"Texture": TextureNode}
+NODE_DISPLAY_NAME_MAPPINGS = {"Texture": "SharpnessPro · Texture"}