MXNet之CNN：自定义CNN-OCR算法训练车牌数据集(umpy.ndarray格式数据)实现车牌照片字符识别并评估模型
【摘要】 MXNet之CNN：自定义CNN-OCR算法训练车牌数据集(umpy.ndarray格式数据)实现车牌照片字符识别并评估模型
导读 利用CNN-OCR算法训练车牌数据集评估模型并实现车牌照片字符识别，训练中的车牌数据集是Numpy.ndarray格式数据，当然也可以进一步生成图片，方便直接查看。
目录
输出结果
设计思路
核心代码
更多输出 ...
MXNet之CNN：自定义CNN-OCR算法训练车牌数据集(umpy.ndarray格式数据)实现车牌照片字符识别并评估模型
导读
利用CNN-OCR算法训练车牌数据集评估模型并实现车牌照片字符识别，训练中的车牌数据集是Numpy.ndarray格式数据，当然也可以进一步生成图片，方便直接查看。
目录
输出结果
gen_sample之后
1、训练感悟
22:58训练记录：我勒个去，跑了半天，准确度还没上来，啊啊啊，要疯了……
相关文章：
生成图片，CV：设计自动生成汽车车牌图片算法(cv2+PIL)根据指定七个字符自动生成逼真车牌图片数据集(带各种噪声效果)
MXNet之CNN：自定义CNN-OCR算法训练车牌数据集(umpy.ndarray格式数据)实现车牌照片字符识别并评估模型
设计思路
第一次
第二次
总思路
核心代码
后期更新……
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class GenPlate:
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def __init__(self,fontCh,fontEng,NoPlates):
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self.fontC = ImageFont.truetype(fontCh,43,0);
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self.fontE = ImageFont.truetype(fontEng,60,0);
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self.img=np.array(Image.new("RGB", (226,70),(255,255,255)))
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……
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def draw(self,val):
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offset= 2 ;
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self.img[0:70,offset+8:offset+8+23]= GenCh(self.fontC,val[0]);
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……
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return self.img
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def generate(self,text): #generate()方法，
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# print('text', text, len(text))
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if len(text) == 7: # 9
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# print('开始运行if语句')
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fg = self.draw(text);
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……
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def genPlateString(self,pos,val): #定义genPlateString函数
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……
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for unit,cpos in zip(box,range(len(box))):
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if unit == 1:
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plateStr += val
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else:
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if cpos == 0:
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plateStr += chars[r(31)]
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elif cpos == 1:
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plateStr += chars[41+r(24)]
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else:
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plateStr += chars[31 + r(34)]
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return plateStr;
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def genBatch(self, batchSize,pos,charRange, outputPath,size):
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if (not os.path.exists(outputPath)):
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os.mkdir(outputPath)
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l_plateStr = []
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l_plateImg = []
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for i in range(batchSize):
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plateStr = G.genPlateString(-1,-1)
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img = G.generate(plateStr);
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img = cv2.resize(img,size);
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l_plateStr.append(plateStr)
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l_plateImg.append(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))
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return l_plateStr,l_plateImg
更多输出
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start
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start
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[21:56:28] c:\jenkins\workspace\mxnet-tag\mxnet\src\operator\tensor\./matrix_op-inl.h:189: Using target_shape will be deprecated.
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2019-05-04 21:56:28,024 Start training with [cpu(0)]
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[21:56:28] c:\jenkins\workspace\mxnet-tag\mxnet\src\operator\tensor\./matrix_op-inl.h:189: Using target_shape will be deprecated.
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[21:56:28] c:\jenkins\workspace\mxnet-tag\mxnet\src\operator\tensor\./matrix_op-inl.h:189: Using target_shape will be deprecated.
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2019-05-04 21:56:50,213 Epoch[0] Batch [0-50] Speed: 18.52 samples/sec Accuracy=0.000000
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2019-05-04 21:57:11,041 Epoch[0] Batch [50-100] Speed: 19.21 samples/sec Accuracy=0.000000
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2019-05-04 21:57:37,527 Epoch[0] Batch [100-150] Speed: 15.10 samples/sec Accuracy=0.000000
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2019-05-04 21:58:04,827 Epoch[0] Batch [150-200] Speed: 14.65 samples/sec Accuracy=0.000000
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2019-05-04 21:58:31,717 Epoch[0] Batch [200-250] Speed: 14.88 samples/sec Accuracy=0.000000
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2019-05-04 21:58:57,243 Epoch[0] Batch [250-300] Speed: 15.67 samples/sec Accuracy=0.000000
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2019-05-04 21:59:21,087 Epoch[0] Batch [300-350] Speed: 16.78 samples/sec Accuracy=0.000000
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2019-05-04 21:59:45,344 Epoch[0] Batch [350-400] Speed: 16.49 samples/sec Accuracy=0.000000
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2019-05-04 22:00:03,961 Epoch[0] Batch [400-450] Speed: 21.49 samples/sec Accuracy=0.000000
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……
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2019-05-04 22:46:30,698 Epoch[0] Batch [7050-7100] Speed: 19.49 samples/sec Accuracy=0.000000
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2019-05-04 22:46:50,442 Epoch[0] Batch [7100-7150] Speed: 20.26 samples/sec Accuracy=0.000000
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2019-05-04 22:47:13,577 Epoch[0] Batch [7150-7200] Speed: 17.29 samples/sec Accuracy=0.000000
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2019-05-04 22:47:35,495 Epoch[0] Batch [7200-7250] Speed: 18.25 samples/sec Accuracy=0.000000
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2019-05-04 22:47:58,486 Epoch[0] Batch [7250-7300] Speed: 17.40 samples/sec Accuracy=0.000000
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2019-05-04 22:48:22,143 Epoch[0] Batch [7300-7350] Speed: 16.91 samples/sec Accuracy=0.000000
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2019-05-04 22:48:43,430 Epoch[0] Batch [7350-7400] Speed: 18.79 samples/sec Accuracy=0.000000
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2019-05-04 22:49:03,882 Epoch[0] Batch [7400-7450] Speed: 19.56 samples/sec Accuracy=0.000000
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……
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2019-05-05 03:45:30,533 Epoch[0] Batch [62100-62150] Speed: 25.21 samples/sec Accuracy=0.000000
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2019-05-05 03:45:46,024 Epoch[0] Batch [62150-62200] Speed: 25.82 samples/sec Accuracy=0.000000
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2019-05-05 03:46:01,867 Epoch[0] Batch [62200-62250] Speed: 25.25 samples/sec Accuracy=0.000000
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2019-05-05 03:46:17,135 Epoch[0] Batch [62250-62300] Speed: 26.20 samples/sec Accuracy=0.000000
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2019-05-05 03:46:33,650 Epoch[0] Batch [62300-62350] Speed: 24.22 samples/sec Accuracy=0.000000
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2019-05-05 03:46:49,428 Epoch[0] Batch [62350-62400] Speed: 25.35 samples/sec Accuracy=0.000000
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2019-05-05 03:47:05,570 Epoch[0] Batch [62400-62450] Speed: 24.78 samples/sec Accuracy=0.000000
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2019-05-05 03:47:21,043 Epoch[0] Batch [62450-62500] Speed: 25.85 samples/sec Accuracy=0.000000
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2019-05-05 03:47:21,043 Epoch[0] Resetting Data Iterator
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2019-05-05 03:47:21,046 Epoch[0] Time cost=21053.006
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2019-05-05 03:47:43,604 Epoch[0] Validation-Accuracy=0.000000
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2019-05-05 03:47:43,885 Saved checkpoint to "cnn-ocr-0001.params"
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('浙CUR7QJ', [11, 43, 59, 56, 38, 55, 49])
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相关文章
CV：设计自动生成汽车车牌图片算法(cv2+PIL)根据指定七个字符自动生成逼真车牌图片数据集(带各种噪声效果)
MXNet之CNN：自定义CNN-OCR算法训练车牌数据集(umpy.ndarray格式数据)实现车牌照片字符识别并评估模型
MXNet之CNN：自定义CNN-OCR算法训练车牌数据集(umpy.ndarray格式数据)实现车牌照片字符识别并进行新车牌照片字符预测
文章来源: yunyaniu.blog.csdn.net，作者：一个处女座的程序猿，版权归原作者所有，如需转载，请联系作者。
原文链接：yunyaniu.blog.csdn.net/article/details/89819311
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