increase resolution for texture

sorghum_pipeline/pipeline.py

@@ -268,16 +268,16 @@ class SorghumPipeline:
             pdata['texture_features'] = {}
             spectral = pdata.get('spectral_stack', {})
             
-            # Only compute essential texture on very downsampled green band for speed
+            # Compute texture on green band with good quality (256x256)
             if 'green' in spectral:
                 green_band = np.asarray(spectral['green'], dtype=np.float64)
                 if green_band.ndim == 3 and green_band.shape[-1] == 1:
                     green_band = green_band[..., 0]
 
-                # Downsample to 64x64 max for very fast texture computation
+                # Downsample to 256x256 for good texture quality
                 h, w = green_band.shape[:2]
-                if h > 64 or w > 64:
-                    scale = 64 / max(h, w)
+                if h > 256 or w > 256:
+                    scale = 256 / max(h, w)
                     green_band = cv2.resize(green_band, None, fx=scale, fy=scale, interpolation=cv2.INTER_LINEAR)
                     if mask is not None:
                         mask_resized = cv2.resize(mask, (green_band.shape[1], green_band.shape[0]), interpolation=cv2.INTER_NEAREST)