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data preprocessing for text classification.
电站锅炉采用工业电视直接观察炉膛火焰图像,从火焰表面特征判断当前锅炉燃烧状态。针对燃烧过程的动态特性和各种随机干扰,本文对炉膛火焰数字图像进行了滤波和增强显示等处理,并具体讲述了各种处理
·期刊论文：A 3D Barcode Preprocessing Scheme Based On Image Recognition
color image to greyscale image to binary image
Many problems in statistical pattern recognition begin with the preprocessing of multidimensional signals, such as image...
Feature selection is a preprocessing technique frequently used in data mining and machine learning tasks. It can reduce ...
image which can be used for image commp