VLM selected: neither
Adjustments: The contour isolates the inset illustration rather than the book cover, while the Hough guess removes the top portion of the cover. The original image is already tightly framed around the full front cover, so use the full-image bounds.
VLM selected: contour
Adjustments: The contour closely follows all four cover edges. Refine it only slightly by moving the top-left corner upward and making tiny edge-alignment corrections at the other corners.
VLM selected: contour
Adjustments: The contour guess closely follows the cover. Move the top-left corner upward to include the full top edge, shift the top-right and bottom-right slightly right, and retain the close fit along the lower-left edge.
VLM selected: contour
Adjustments: The contour guess follows the visible cover edges and perspective better than the Hough guess. Move the top-left corner left to the true cover edge, raise the top-right slightly, and make only minor bottom-corner refinements to follow the worn outer boundary.
VLM selected: hough
Adjustments: Keep the Hough estimate’s top-edge alignment, expand slightly left and right to the visible cover corners, and extend both lower corners down to the book’s actual bottom edge.
VLM selected: neither
Adjustments: Both guesses use the full image and include substantial background. Crop to the visible worn outer edges of the front cover, following the slightly sloped top and tapered side edges. Extrapolate the lower corners beyond the image frame because the bottom of the book is cut off.
VLM selected: hough
Adjustments: The Hough estimate captures the slanted top edge better, but its side and bottom lines cut deeply into the cover. Move all four corners to the visible front-cover corners, excluding the narrow spine on the left and the surrounding shelves and hand.
VLM selected: hough
Adjustments: Use the Hough orientation as a rough basis, but move all corners to the actual front-panel boundaries: place the top corners on the visible top edge, move the right corners to the outer right edge, and extrapolate the lower-left corner beyond the frame where the front/spine seam intersects the bottom edge.
VLM selected: neither
Adjustments: The contour is the full image and the Hough guess captures only the cover's middle. Replace both with the visible book boundaries, extending the slanted top and right edges slightly above the frame to recover the true top-right corner; follow the clear lower edge and estimated left edge behind the hand.
VLM selected: contour
Adjustments: The cover already fills the image and several edges meet the frame. The Hough guess incorrectly cuts inward along the left and bottom edges, removing cover content. Keep the full-image crop.
VLM selected: hough
Adjustments: The Hough guess closely follows the cover. Move the top-left slightly right to exclude the dark background, raise the top-right slightly to the outer cover edge, and add a subtle bottom-edge slope to match the cover.
VLM selected: contour
Adjustments: The contour guess follows the top and left edges closely. Extend the lower-right corner down and slightly right to the inferred intersection of the right and bottom cover edges, and shift the lower-left slightly left to better include the full bottom edge.
VLM selected: neither
Adjustments: The contour guess includes substantial background, while the Hough guess captures only the upper-middle portion of the cover. Fit the crop to the book’s four visible outer corners, following its slightly skewed top, side, and bottom edges.
