vfertical at x style rewrite
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77e5968236
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1 changed files with 33 additions and 29 deletions
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@ -199,53 +199,57 @@ class StitchingScanner:
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return result
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def _blend_vertical_at_x(self, base: np.ndarray, strip: np.ndarray,
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blend_height: int, append_below: bool,
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x_offset: int = 0) -> np.ndarray:
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mh, mw = base.shape[:2]
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sh, sw = strip.shape[:2]
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blend_height: int, append_below: bool,
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x_offset: int = 0) -> np.ndarray:
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h_base, w_base = base.shape[:2]
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h_strip, w_strip = strip.shape[:2]
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# Clamp x_offset to valid range
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x_offset = max(0, min(x_offset, mw - 1))
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# Calculate how much of strip fits in mosaic
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available_width = mw - x_offset
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strip_width = min(sw, available_width)
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x_offset = max(0, min(x_offset, w_base - 1))
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# Create full-width strip with strip placed at x_offset
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full_strip = np.zeros((sh, mw, 3), dtype=np.uint8)
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full_strip[:, x_offset:x_offset + strip_width] = strip[:, :strip_width]
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full_strip = np.zeros((h_strip, w_base, 3), dtype=np.uint8)
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available_width = w_base - x_offset
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copy_width = min(w_strip, available_width)
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full_strip[:, x_offset:x_offset + copy_width] = strip[:, :copy_width]
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# Now blend using existing logic
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blend_h = min(blend_height, sh, mh)
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if blend_h <= 0:
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# Early exit: no blending possible
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if blend_height <= 0 or blend_height >= h_strip:
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if append_below:
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return np.vstack([base, full_strip])
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return np.vstack([full_strip, base])
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# Height mismatch shouldn't happen with full_strip, but safety check
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if w_strip > w_base:
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self.log(f"Warning: strip wider than base ({w_strip} > {w_base})")
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blend_h = min(blend_height, h_strip, h_base)
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if append_below:
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result_height = h_base + h_strip - blend_h
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result = np.zeros((result_height, w_base, 3), dtype=np.uint8)
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result[:h_base, :] = base
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alpha = np.linspace(1, 0, blend_h, dtype=np.float32)[:, np.newaxis, np.newaxis]
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base_overlap = base[-blend_h:].astype(np.float32)
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strip_overlap = full_strip[:blend_h].astype(np.float32)
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base_overlap = base[-blend_h:, :].astype(np.float32)
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strip_overlap = full_strip[:blend_h, :].astype(np.float32)
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blended = (base_overlap * alpha + strip_overlap * (1 - alpha)).astype(np.uint8)
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result_h = mh + sh - blend_h
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result = np.zeros((result_h, mw, 3), dtype=np.uint8)
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result[:mh - blend_h] = base[:-blend_h]
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result[mh - blend_h:mh] = blended
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result[mh:] = full_strip[blend_h:]
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result[h_base - blend_h:h_base, :] = blended
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result[h_base:, :] = full_strip[blend_h:, :]
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return result
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else:
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result_height = h_base + h_strip - blend_h
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result = np.zeros((result_height, w_base, 3), dtype=np.uint8)
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result[:h_strip, :] = full_strip
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alpha = np.linspace(0, 1, blend_h, dtype=np.float32)[:, np.newaxis, np.newaxis]
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strip_overlap = full_strip[-blend_h:].astype(np.float32)
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base_overlap = base[:blend_h].astype(np.float32)
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strip_overlap = full_strip[-blend_h:, :].astype(np.float32)
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base_overlap = base[:blend_h, :].astype(np.float32)
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blended = (strip_overlap * (1 - alpha) + base_overlap * alpha).astype(np.uint8)
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result_h = mh + sh - blend_h
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result = np.zeros((result_h, mw, 3), dtype=np.uint8)
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result[:sh - blend_h] = full_strip[:-blend_h]
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result[sh - blend_h:sh] = blended
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result[sh:] = base[blend_h:]
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result[h_strip - blend_h:h_strip, :] = blended
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result[h_strip:, :] = base[blend_h:, :]
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return result
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def _blend_vertical(self, base: np.ndarray, strip: np.ndarray,
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blend_height: int, append_below: bool) -> np.ndarray:
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