OpenCV Haar特征分类器识别H字符用xml文件，带H字符图片供打印

<?xml version="1.0"?> <opencv_storage> <data type_id="opencv-haar-classifier"> <size> 20 20</size> <stages> <_> <!-- stage 0 --> <trees> <_> <!-- tree 0 --> <_> <!-- root node --> <feature> <rects> <_> 8 4 4 12 -1.</_> <_> 8 8 4 4 3.</_></rects> <tilted>0</tilted></feature> <threshold>1.1928430199623108e-001</threshold> <left_val>-9.7999519109725952e-001</left_val> <right_val>9.7952657938003540e-001</right_val></_></_> <_> <!-- tree 1 --> <_> <!-- root node --> <feature> <rects> <_> 8 5 4 6 -1.</_> <_> 8 8 4 3 2.</_></rects> <tilted>0</tilted></feature> <threshold>3.6510400474071503e-002</threshold> <left_val>-1.</left_val> <right_val>9.2512762546539307e-001</right_val></_></_></trees> <stage_threshold>-5.4867628961801529e-002</stage_threshold> <parent>-1</parent> <next>-1</next></_> <_> <!-- stage 1 --> <trees> <_> <!-- tree 0 --> <_> <!-- root node --> <feature> <rects> <_> 0 3 4 15 -1.</_> <_> 2 3 2 15 2.</_></rects> <tilted>0</tilted></feature> <threshold>3.1383369117975235e-002</threshold> <left_val>-8.8341397047042847e-001</left_val> <right_val>9.3671357631683350e-001</right_val></_></_> <_> <!-- tree 1 --> <_> <!-- root node --> <feature> <rects> <_> 9 8 2 8 -1.</_> <_> 9 12 2 4 2.</_></rects> <tilted>0</tilted></feature> <threshold>-3.1316239386796951e-002</threshold> <left_val>8.3375620841979980e-001</left_val> <right_val>-9.9999988079071045e-001</right_val></_></_></trees> <stage_threshold>-4.9657758325338364e-002</stage_threshold> <parent>0</parent> <next>-1</next></_> <_> <!-- stage 2 --> <trees> <_> <!-- tree 0 --> <_> <!-- root node --> <feature> <rects> <_> 2 4 15 9 -1.</_> <_> 7 4 5 9 3.</_></rects> <tilted>0</tilted></feature> <threshold>-3.8059998303651810e-002</threshold> <left_val>7.7039301395416260e-001</left_val> <right_val>-1.0000020265579224e+000</right_val></_></_></trees> <stage_threshold>7.7039301395416260e-001</stage_threshold> <parent>1</parent> <next>-1</next></_> <_> <!-- stage 3 --> <trees> <_> <!-- tree 0 --> <_> <!-- root node --> <feature> <rects> <_> 2 14 16 6 -1.</_> <_> 2 17 16 3 2.</_></rects> <tilted>0</tilted></feature> <threshold>-3.5064671188592911e-002</threshold> <left_val>7.5231850147247314e-001</left_val> <right_val>-9.7701430320739746e-001</right_val></_></_> <_> <!-- tree 1 --> <_> <!-- root node --> <feature> <rects> <_> 16 6 4 10 -1.</_> <_> 16 6 2 10 2.</_></rects> <tilted>0</tilted></feature> <threshold>4.4445939362049103e-002</threshold> <left_val>-8.0011010169982910e-001</left_val> <right_val>8.8311982154846191e-001</right_val></_></_></trees> <stage_threshold>-9.3894481658935547e-002</stage_threshold> <parent>2</parent> <next>-1</next></_> <_> <!-- stage 4 --> <trees> <_> <!-- tree 0 --> <_> <!-- root node --> <feature> <rects> <_> 0 5 4 10 -1.</_> <_> 2 5 2 10 2.</_></rects> <tilted>0</tilted></feature> <threshold>4.7298360615968704e-002</threshold> <left_val>-7.5899249315261841e-001</left_val> <right_val>8.8885170221328735e-001</right_val></_></_> <_> <!-- tree 1 --> <_> <!-- root node --> <feature> <rects> <_> 2 1 18 19 -1.</_> <_> 2 1 9 19 2.</_></rects> <tilted>0</tilted></feature> <threshold>-4.6555131673812866e-002</threshold> <left_val>3.6745429039001465e-001</left_val> <right_val>-9.7072881460189819e-001</right_val></_></_> <_> <!-- tree 2 --> <_> <!-- root node --> <feature> <rects> <_> 2 1 16 18 -1.</_> <_> 2 7 16 6 3.</_></rects> <tilted>0</tilted></feature> <threshold>4.6069520711898804e-001</threshold> <left_val>-9.8281759023666382e-001</left_val> <right_val>3.8441058993339539e-001</right_val></_></_></trees> <stage_threshold>-7.1275532245635986e-003</stage_threshold> <parent>3</parent> <next>-1</next></_> <_> <!-- stage 5 --> <trees> <_> <!-- tree 0 --> <_> <!-- root node --> <feature> <rects> <_> 2 7 3 6 -1.</_> <_> 3 7 1 6 3.</_></rects> <tilted>0</tilted></feature> <threshold>4.8402589745819569e-003</threshold> <left_val>-7.4007982015609741e-001</left_val> <right_val>7.4053418636322021e-001</right_val></_></_> <_> <!-- tree 1 --> <_> <!-- root node --> <feature> <rects> <_> 5 4 10 2 -1.</_> <_> 5 5 10 1 2.</_></rects> <tilted>0</tilted></feature> <threshold>-5.8634279412217438e-005</threshold> <left_val>5.3154408931732178e-001</left_val> <right_val>-8.2312190532684326e-001</right_val></_></_></trees> <stage_threshold>-2.0853570103645325e-001</stage_threshold> <parent>4</parent> <next>-1</next></_> <_> <!-- stage 6 --> <trees> <_> <!-- tree 0 --> <_> <!-- root node --> <feature> <rects> <_> 3 4 4 6 -1.</_> <_> 5 4 2 6 2.</_></rects> <tilted>0</tilted></feature> <threshold>-1.5659140422940254e-002</threshold> <left_val>7.7732592821121216e-001</left_val> <right_val>-6.2196999788284302e-001</right_val></_></_> <_> <!-- tree 1 --> <_> <!-- root node --> <feature> <rects> <_> 10 5 4 2 -1.</_> <_> 10 6 4 1 2.</_></rects> <tilted>0</tilted></feature> <threshold>7.4801268056035042e-004</threshold> <left_val>3.2033669948577881e-001</left_val> <right_val>-8.1987261772155762e-001</right_val></_></_>