mineshpatel1

def simple_network():
	x = tf.placeholder(tf.float32, shape=[None, 784])  # Placeholder for input
	y_ = tf.placeholder(tf.float32, shape=[None, 10])  # Placeholder for true labels (used in training)
	hidden_neurons = 16  # Number of neurons in the hidden layer

	# Hidden layer
	w_1 = weights([784, hidden_neurons])
	b_1 = biases([hidden_neurons])
	h_1 = tf.nn.sigmoid(tf.matmul(x, w_1) + b_1)  # Order of x and w_1 matters here purely syntactically

mineshpatel1

import numpy as np
import cv2


def read_image(path):
	"""Reads image as grayscale and normalises and flattens the array."""
	img = cv2.imread(path, cv2.IMREAD_GRAYSCALE)  # Load as grayscale
	img = img / 255  # Normalise values
	return img.flatten()  # Flatten to shape [784]

mineshpatel1

import cv2
import operator
import numpy as np
from matplotlib import pyplot as plt


def plot_many_images(images, titles, rows=1, columns=2):
	"""Plots each image in a given list as a grid structure. using Matplotlib."""
	for i, image in enumerate(images):
		plt.subplot(rows, columns, i+1)

mineshpatel1

def display_grid(grid, coords=False):
	"""
	Displays a 9x9 soduku grid in a nicely formatted way.

	Args:
		grid (str|dict|list): A string representing a Sudoku grid. Valid characters are digits from 1-9 and empty squares are
			specified by 0 or . only. Any other characters are ignored. A `ValueError` will be raised if the input does
			not specify exactly 81 valid grid positions.
			Can accept a dictionary where each key is the position on the board from A1 to I9.
			Can accept a list of strings or integers with empty squares represented by 0.

mineshpatel1

def display_points(in_img, points, radius=5, colour=(0, 0, 255)):
	"""Draws circular points on an image."""
	img = in_img.copy()

	# Dynamically change to a colour image if necessary
	if len(colour) == 3:
		if len(img.shape) == 2:
			img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)
		elif img.shape[2] == 1:
			img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)

mineshpatel1

def display_grid(grid, coords=False):
	"""
	Displays a 9x9 soduku grid in a nicely formatted way.

	Args:
		grid (str|dict|list): A string representing a Sudoku grid. Valid characters are digits from 1-9 and empty squares are
			specified by 0 or . only. Any other characters are ignored. A `ValueError` will be raised if the input does
			not specify exactly 81 valid grid positions.
			Can accept a dictionary where each key is the position on the board from A1 to I9.
			Can accept a list of strings or integers with empty squares represented by 0.