Matplotlib import image as float32
Em 01-07-2019 18:03, Chris Angelico escreveu:
> On Tue, Jul 2, 2019 at 6:59 AM Markos <markos at c2o.pro.br> wrote:
>> I observed that matplotlib reads an image file (PNG) as float32:
>> Please, how to read this file as int8 to get RGB in range of 0-255?
>> Thank you,
>>> import numpy as np
>>> import matplotlib.pyplot as plt
>>> import matplotlib.image as mpimg
>>> imagem = mpimg.imread('lenna.png')
>>> print (imagem)
>> [[[0.8862745 0.5372549 0.49019608]
>> [0.8862745 0.5372549 0.49019608]
>> [0.8745098 0.5372549 0.52156866]
>>> print (imagem.dtype)
> Seems like matplotlib is rescaling everything to be on the range 0 to 1.
I found a workaround at:
I don't know if is the most elegant? but it worked.
imagem = mpimg.imread('lenna.png')
by the command:
imagem = (mpimg.imread('lenna.png') * 255).astype('uint8')