CoCalc Public FilesSlide.htmlOpen with one click!
Author: Ney Lemke
Views : 61
Description: Jupyter html version of Slide.ipynb
Compute Environment: Ubuntu 18.04 (Deprecated)
Slide
In [2]:
from notebook.services.config import ConfigManager
from IPython.paths import locate_profile
cm = ConfigManager(profile_dir=locate_profile(get_ipython().profile))
cm.update('livereveal', {
              'theme': 'beige',
              'transition': 'zoom',
              'start_slideshow_at': 'selected',
})
Out[2]:
{'start_slideshow_at': 'selected', 'theme': 'beige', 'transition': 'zoom'}

Minha primeira sessão de Slides

por Ney Lemke

Teste

Fórmulas

Eu posso escrever fórmulas:

12 \frac{1}{2}

Ou coisas mais avançadas:

BdS=0\oint\vec{B}\cdot d\vec{S}=0

Listas

Eu posso incluir listas

  • entender o sistema
  • fazer simulações
  • será prático?
  1. Teste
  2. Resre2

Posso incluir links como esse para o Google

Eu posso inserir código diretamente e de forma interativa

In [8]:
1+1
Out[8]:
2

Tabelas

First Header Second Header
Content Cell Content Cell
Content Cell Content Cell

Código

def f(x):
    return x+1

Quote

Minhas Lembranças

In [2]:
import numpy as np
import skimage
from skimage import img_as_float
import skimage.filters as skif
from skimage.color import rgb2gray
import skimage.data as skid
import skimage.exposure as skie
from notebook.widgets import interact
import matplotlib.pyplot as plt
import seaborn
%matplotlib inline
plt.style.use('ggplot')
/Users/neylemke/anaconda/lib/python3.5/site-packages/matplotlib/font_manager.py:273: UserWarning: Matplotlib is building the font cache using fc-list. This may take a moment.
  warnings.warn('Matplotlib is building the font cache using fc-list. This may take a moment.')
/Users/neylemke/anaconda/lib/python3.5/site-packages/matplotlib/font_manager.py:273: UserWarning: Matplotlib is building the font cache using fc-list. This may take a moment.
  warnings.warn('Matplotlib is building the font cache using fc-list. This may take a moment.')
/Users/neylemke/anaconda/lib/python3.5/site-packages/IPython/html.py:14: ShimWarning: The `IPython.html` package has been deprecated. You should import from `notebook` instead. `IPython.html.widgets` has moved to `ipywidgets`.
  "`IPython.html.widgets` has moved to `ipywidgets`.", ShimWarning)
In [3]:
chelsea = skid.chelsea()
In [4]:
chelsea.shape, chelsea.dtype
Out[4]:
((300, 451, 3), dtype('uint8'))
In [5]:
plt.imshow(chelsea)
plt.axis('off')
Out[5]:
(-0.5, 450.5, 299.5, -0.5)
In [6]:
img = rgb2gray(chelsea)
In [7]:
p2, p98 = np.percentile(img, (2, 98))
In [8]:
img_rescale = skie.rescale_intensity(img, in_range=(p2, p98))
In [9]:
img_eq = skie.equalize_hist(img)
In [10]:
img_adapteq = img_as_float(skie.equalize_adapthist(img, clip_limit=0.03))
/Users/neylemke/anaconda/lib/python3.5/site-packages/skimage/util/dtype.py:110: UserWarning: Possible precision loss when converting from float64 to uint16
  "%s to %s" % (dtypeobj_in, dtypeobj))
In [11]:
hist_types = dict([('Contrast stretching', img_rescale),
                   ('Histogram equalization', img_eq),
                   ('Adaptive equalization', img_adapteq)])

Interatividade

In [1]:
@interact(hist_type=list(hist_types.keys()))
def display_result(hist_type):
    result = hist_types[hist_type]

    # We display the processed grayscale image on the left.
    plt.subplot(121)
    plt.imshow(result, cmap='gray')
    plt.axis('off')

    # We display the histogram on the right.
    plt.subplot(122)
    plt.hist(result.ravel(), bins=np.linspace(0., 1., 256),
             histtype='step', color='black')

    plt.show()
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-1-d66705dea998> in <module>()
      1 
      2 
----> 3 @interact(hist_type=list(hist_types.keys()))
      4 def display_result(hist_type):
      5     result = hist_types[hist_type]

NameError: name 'interact' is not defined