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optimized pasteback

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This commit is contained in:
harisreedhar
2025-06-16 20:02:59 +05:30
parent 4200a646f6
commit d1e8fbab08
1 changed files with 32 additions and 9 deletions
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41
facefusion/face_helper.py
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@@ -98,16 +98,39 @@ def warp_face_by_translation(temp_vision_frame : VisionFrame, translation : Tran
return crop_vision_frame, affine_matrix
def paste_back(temp_vision_frame : VisionFrame, crop_vision_frame : VisionFrame, crop_mask : Mask, affine_matrix : Matrix) -> VisionFrame:
inverse_matrix = cv2.invertAffineTransform(affine_matrix)
def find_paste_region(temp_vision_frame : VisionFrame, crop_vision_frame : VisionFrame, affine_matrix : Matrix) -> Tuple[BoundingBox, Matrix]:
temp_size = temp_vision_frame.shape[:2][::-1]
inverse_mask = cv2.warpAffine(crop_mask, inverse_matrix, temp_size).clip(0, 1)
inverse_vision_frame = cv2.warpAffine(crop_vision_frame, inverse_matrix, temp_size, borderMode = cv2.BORDER_REPLICATE)
paste_vision_frame = temp_vision_frame.copy()
paste_vision_frame[:, :, 0] = inverse_mask * inverse_vision_frame[:, :, 0] + (1 - inverse_mask) * temp_vision_frame[:, :, 0]
paste_vision_frame[:, :, 1] = inverse_mask * inverse_vision_frame[:, :, 1] + (1 - inverse_mask) * temp_vision_frame[:, :, 1]
paste_vision_frame[:, :, 2] = inverse_mask * inverse_vision_frame[:, :, 2] + (1 - inverse_mask) * temp_vision_frame[:, :, 2]
return paste_vision_frame
crop_size = crop_vision_frame.shape[:2][::-1]
inverse_matrix = cv2.invertAffineTransform(affine_matrix)
crop_corners = numpy.array([ [ 0, 0 ], [ crop_size[0], 0 ], [ crop_size[0], crop_size[1] ], [ 0, crop_size[1] ] ], dtype = numpy.float32)
paste_region_corners = transform_points(crop_corners, inverse_matrix)
min_corner = numpy.floor(paste_region_corners.min(axis = 0)).astype(int)
max_corner = numpy.ceil(paste_region_corners.max(axis = 0)).astype(int)
x_min, y_min = numpy.clip(min_corner, 0, temp_size)
x_max, y_max = numpy.clip(max_corner, 0, temp_size)
paste_region_bounding_box = numpy.array([ x_min, y_min, x_max, y_max ])
paste_region_matrix = inverse_matrix.copy()
paste_region_matrix[0, 2] -= x_min
paste_region_matrix[1, 2] -= y_min
return paste_region_bounding_box, paste_region_matrix
def paste_back(temp_vision_frame : VisionFrame, crop_vision_frame : VisionFrame, crop_mask : Mask, affine_matrix : Matrix) -> VisionFrame:
paste_region_bounding_box, paste_region_matrix = find_paste_region(temp_vision_frame, crop_vision_frame, affine_matrix)
x_min, y_min, x_max, y_max = paste_region_bounding_box
paste_region_width = x_max - x_min
paste_region_height = y_max - y_min
if paste_region_width > 0 and paste_region_height > 0:
paste_region_frame = temp_vision_frame[y_min:y_max, x_min:x_max]
paste_inverse_mask = cv2.warpAffine(crop_mask, paste_region_matrix, (paste_region_width, paste_region_height)).clip(0, 1)[:, :, None]
paste_inverse_region_frame = cv2.warpAffine(crop_vision_frame, paste_region_matrix, (paste_region_width, paste_region_height), borderMode = cv2.BORDER_REPLICATE)
paste_region_frame = paste_region_frame * (1 - paste_inverse_mask) + paste_inverse_region_frame * paste_inverse_mask
paste_vision_frame = temp_vision_frame.copy()
paste_vision_frame[y_min:y_max, x_min:x_max] = paste_region_frame.astype(temp_vision_frame.dtype)
return paste_vision_frame
return temp_vision_frame
@lru_cache(maxsize = None)