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# Plot training & validation accuracy values | |
plt.plot(results.history['iou_coef']) | |
plt.plot(results.history['val_iou_coef']) | |
plt.title('Model accuracy') | |
plt.ylabel('IOU') | |
plt.xlabel('Epoch') | |
plt.legend(['Train', 'Test'], loc='upper left') | |
plt.show() | |
# Plot training & validation loss values |
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from skimage.exposure import cumulative_distribution | |
import numpy as np | |
def cdf(im): | |
''' | |
computes the CDF of an image im as 2D numpy ndarray | |
''' | |
c, b = cumulative_distribution(im) | |
# pad the beginning and ending pixels and their CDF values |
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from skimage.exposure import cumulative_distribution | |
import numpy as np | |
def cdf(im): | |
''' | |
computes the CDF of an image im as 2D numpy ndarray | |
''' | |
c, b = cumulative_distribution(im) | |
# pad the beginning and ending pixels and their CDF values |
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import numpy as np | |
def hist_match(source, template): | |
""" | |
Adjust the pixel values of a grayscale image such that its histogram | |
matches that of a target image | |
Arguments: | |
----------- | |
source: np.ndarray |
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import tensorflow as tf | |
from keras.models import Sequential | |
from tensorflow.keras.layers import ( | |
Conv2D, MaxPooling2D, Flatten, | |
Dense, Dropout, Input | |
) | |
image_input = Input(shape=(100, 100, 3), name='input_layer') | |
conv_1 = Conv2D(8, | |
kernel_size=(3, 3), |
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import cv2 as cv | |
import numpy as np | |
def nothing(x): | |
pass | |
# Color trackbars |
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df1 = df.copy() | |
var_types = pd.DataFrame(df1.dtypes.index, columns = ['Variable']) | |
lst = [] | |
for col in df1.columns: | |
try: | |
df1[col] = df1[col].astype(float) | |
lst.append(False) | |
except: | |
try: |
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import pandas as pd | |
variables = [] | |
rlst = [] | |
for i in range(0, len(variables)): | |
clst = [] | |
for j in range(0, len(variables)): | |
if i != j: | |
clst.append( round(df[variables[i]].corr(df[variables[j]]), 3)) |
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from scipy.optimize import curve_fit | |
# interpolate | |
df_int[field] = df[field].interpolate(method='piecewise_polynomial') | |
''' | |
'linear’, ‘time’, ‘index’, ‘values’, ‘nearest’, ‘zero’, | |
‘slinear’, ‘quadratic’, ‘cubic’, ‘barycentric’, ‘krogh’, ‘polynomial’, ‘spline’ ‘piecewise_polynomial’, ‘pchip’} | |
''' |
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# %matplotlib inline | |
from matplotlib import pyplot as plt | |
plt.rcParams['figure.figsize'] = (10, 8) | |
fig = plt.figure(figsize=(25, 15)) | |
cols = 5 | |
rows = np.ceil(float(data_train.shape[1]) / cols) | |
for i, column in enumerate(data_train.columns): | |
ax = fig.add_subplot(rows, cols, i + 1) |