def iageorigid(f, scale, theta, t):
from iaffine import iaffine
Ts = [[scale[1],0,0], [0,scale[0],0], [0,0,1]]
Trot = [[cos(theta),-sin(theta),0], [sin(theta),cos(theta),0], [0,0,1]]
Tx = [[1,0,t[1]], [0,1,t[0]], [0,0,1]]
g = iaffine(f, dot(dot(Tx,Trot), Ts))
return g
def iageorigid(f, scale, theta, t):
from iaffine import iaffine
Ts = [[scale[1], 0, 0], [0, scale[0], 0], [0, 0, 1]]
Trot = [[cos(theta), -sin(theta), 0], [sin(theta),
cos(theta), 0], [0, 0, 1]]
Tx = [[1, 0, t[1]], [0, 1, t[0]], [0, 0, 1]]
g = iaffine(f, dot(dot(Tx, Trot), Ts))
return g
import numpy as np
import matplotlib.pyplot as plt
from iaffine import iaffine
G = np.ones((50, 50)) * 255.0
G[5:16, 5] = 0
G[15, 5:12] = 0
plt.figure()
plt.imshow(G, cmap = plt.get_cmap('gray'))
T = np.array([[1, 0, -5], [0, 1, -5], [0, 0, 1] ])
G1 = iaffine(G, T)
plt.show()
plt.figure()
plt.imshow(G1, cmap = plt.get_cmap('gray'))
plt.show()
T2 = np.array([[0.5, 0, 0], [0, 0.5, 0], [0, 0, 1]])
G2 = iaffine(G1, T2)
print(T2)
plt.figure()
plt.imshow(G2, cmap = plt.get_cmap('gray'))
plt.show()
T3 = np.array([[0,-1, 0], [1, 0, 0], [0, 0, 1]])
G3 = iaffine(G2, T3)