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Update MNIST Functions for Fashion #646

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Merged
merged 2 commits into from
Sep 9, 2017
Merged

Update MNIST Functions for Fashion #646

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44189d5
Update notebook.py
antmarakis Sep 7, 2017
bee6e3b
Update notebook.py
antmarakis Sep 7, 2017
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30 changes: 24 additions & 6 deletions notebook.py
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Original file line number Diff line number Diff line change
Expand Up @@ -95,12 +95,15 @@ def show_iris(i=0, j=1, k=2):
# MNIST


def load_MNIST(path="aima-data/MNIST"):
def load_MNIST(path="aima-data/MNIST/Digits", fashion=False):
import os, struct
import array
import numpy as np
from collections import Counter

if fashion:
path = "aima-data/MNIST/Fashion"

plt.rcParams.update(plt.rcParamsDefault)
plt.rcParams['figure.figsize'] = (10.0, 8.0)
plt.rcParams['image.interpolation'] = 'nearest'
Expand Down Expand Up @@ -143,8 +146,17 @@ def load_MNIST(path="aima-data/MNIST"):
return(train_img, train_lbl, test_img, test_lbl)


def show_MNIST(labels, images, samples=8):
classes = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
digit_classes = [str(i) for i in range(10)]
fashion_classes = ["T-shirt/top", "Trouser", "Pullover", "Dress", "Coat",
"Sandal", "Shirt", "Sneaker", "Bag", "Ankle boot"]


def show_MNIST(labels, images, samples=8, fashion=False):
if not fashion:
classes = digit_classes
else:
classes = fashion_classes

num_classes = len(classes)

for y, cls in enumerate(classes):
Expand All @@ -161,13 +173,19 @@ def show_MNIST(labels, images, samples=8):
plt.show()


def show_ave_MNIST(labels, images):
classes = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
def show_ave_MNIST(labels, images, fashion=False):
if not fashion:
item_type = "Digit"
classes = digit_classes
else:
item_type = "Apparel"
classes = fashion_classes

num_classes = len(classes)

for y, cls in enumerate(classes):
idxs = np.nonzero([i == y for i in labels])
print("Digit", y, ":", len(idxs[0]), "images.")
print(item_type, y, ":", len(idxs[0]), "images.")

ave_img = np.mean(np.vstack([images[i] for i in idxs[0]]), axis = 0)
#print(ave_img.shape)
Expand Down