A low threshold preserves detail (more leaf nodes, less compression). A high threshold merges aggressively (fewer leaves, more compression, but the image gets blocky). The grid overlay shows the quadtree structure: large cells in uniform areas, small cells where detail is preserved.
“Shift-narrowing optimization in src/passes/narrow.rs (Phase 4)
，更多细节参见新收录的资料
Более 100 домов повреждены в российском городе-герое из-за атаки ВСУ22:53
Robyn Cowen is joined by Barry Glendenning, John Brewin and Jonathan Liew as Manchester City drop points against Nottingham Forest and Arsenal extend their lead at the top of the table to seven points.