# -*- coding: utf-8 -*-

import numpy as np
import matplotlib.pyplot as plt

# =============================================================================
# imread()
# =============================================================================
'''
from scipy.misc import imread
img1 = imread('./pics/pic1.jpg')

plt.axis('off')

plt.imshow(img1)
#'''

# =============================================================================
# imread() & imshow()
# =============================================================================
'''

import matplotlib.image as mpimg
img1 = mpimg.imread('./pics/pic1.jpg')
img1_tinted=img1*[0.7, 0.7, 0.5]
plt.axis('off')
plt.imshow(np.uint8(img1_tinted))

#'''

# =============================================================================
# tint the photo
# =============================================================================
'''

import matplotlib.image as mpimg
img4 = mpimg.imread('pics/pic4.jpg')

plt.figure(figsize=[10,10])
plt.subplot(1,2,1)
plt.imshow(img4)

plt.subplot(122)
img4_tinted=img4[:, :, 0]
plt.axis('off')
plt.imshow(img4_tinted)

#'''

# =============================================================================
# pseudocolor schemes
# =============================================================================
''' 

import matplotlib.image as mpimg
img4 = mpimg.imread('pics/pic4.jpg')
img4_tinted=img4[:, :, 0]

plt.figure(figsize=[10,10])
plt.axis('off')

plt.subplot(1,2,1)
plt.imshow(img4_tinted,cmap='Oranges')

plt.subplot(122)
plt.imshow(img4_tinted,cmap='coolwarm')

#'''

# =============================================================================
# 範例
# =============================================================================
''' 

from scipy.misc import imread
img1 = imread('pics/pic1.jpg')
img2 = imread('pics/pic2.jpg')
img3 = imread('pics/pic3.jpg')
img4 = imread('pics/pic4.jpg')
img4_tinted=img4[:, :, 0]

plt.figure(figsize=[10,10])

grid=plt.GridSpec(2,2,wspace=0.1)
plt.subplot(grid[0,0])
plt.axis('off')
plt.imshow(img1)

plt.subplot(grid[0,1])
plt.axis('off')
plt.imshow(img2)

plt.subplot(grid[1,0])
plt.axis('off')
plt.imshow(img3)

plt.subplot(grid[1,1])
plt.axis('off')
plt.imshow(img4_tinted,cmap='hot')

#'''