Ptt 大爆卦 | Astype float32 - 前往 https://machinelearningmastery.com/how-to-manually-scale-image-pixel-data-for-deep-learning/

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並前往https://machinelearningmastery.com/how-to-manually-scale-image-pixel-data-for-deep-learning/

How to Manually Scale Image Pixel Data for Deep Learning

Next, the array is converted to the float data type before the pixel values are normalized and the new ... pixels = pixels.astype('float32').

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Numpy .astype 'float32